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TRISODIUM PHOSPHATE ANHYDRATE

TRISODIUM PHOSPHATE ANHYDRATE

 

Synonym: trisodium phosphate anhydrate; Tert-sodium phosphate; Sodium phosphate, tribasic; Trisodium orthophosphate; tribasic sodium phosphate; trisodium phosphate; tri sodium phosphate; tsp; trisodium phosphate; sodium phosphate tribasic; Sodium Phosphate Tribasic Anhydrate; TSP anhydrate; tribasic sodium phosphate anhydrous; Sodium phosphate tri basic; 
Sodium phosphate tribasic; trisodium; phosphate; Trisodium orthophosphate , Sodium phosphate tribasic , Sodium orthophosphate;Sodium phosphate, tribasic; Trisodium orthophosphate; Trisodyum fosfat anhidrat; Trisodyum Fosfat Anhidrat; trısodıum fosfat susuz; 
tspa; trisodyum fosfat anhidrat; trisodyumfosfatandhidrat; trisodyum fosfat anhidrus; trısodyum fosfat anhıdrat; trisodyum fosfat anhidrat; tri sodyum fosfat anhidrat; trisodyum fosfatanhidrat; trisodium fosfat anhidrat; trisodyum fosfat anyhidrat; trisodyum fosfat susuz; trisodyum fosfat; trisodyumfosfatsusuz; susuz trisodyum fosfat; TRISODYUM FOSFAT SUSUZ; TRISODYUMFOSFAT ANHYDROUS; 
TSPA; TSP; trısodıum phosphate anhydrate; trisodiumphosphateanhydrate; tri sodium phosphate anhydrate; Trisodium Phosphate Anhydrate; trı sodıum phosphate anhydrate; trisodium phosphate anhidrate; 3sodium phosphate anhydrate; trisodium fosphate anhydrate; trisodyum phosphate anhydrate; trisodium phosphateanhydrate

 

Formula: Na3PO4

Molecular Weight: 163.94

Grade: Food grade, Free from any harmful and toxic substance.

 

Application: Trisodium Phosphate has uses in the food industry including emulsifying agent, buffer, and brine constituent, example include: processed cheeses,dairy products .
Used as a water softening agent, cleaning agent in electroplating, color fixer in fabric dyeing and flux in enamel ware
manufacturing and so on.

 

Physical properties:white crystals or granules, freely soluble in water, insoluble in alcohol.

Items standard request Test result

 

Assay (as Na3PO4) ,% 97.0Min 98.3
P2O5, % 40.5-43.5 41.0
pH ( 1% solution ) 11.5-12.5 11.7
Arsenic ( As ),mg/kg 1.0Max 0.6
Fluoride ( F ),mg/kg 50.0Max 8.0
Cadmium (Cd) ,mg/kg 1.0Max 0.02
Mercury (Hg),mg/kg 1.0Max 0.02
Lead ( Pb ),mg/kg 4.0Max 0.6
Water insoluble,% 0.2Max 0.02

 

 


Inhalation Cough. Sore throat. Burning sensation. Shortness of breath. Use local exhaust or breathing protection. Fresh air, rest. Half-upright position. Refer immediately for medical attention.

 

Skin Skin burns. Pain. Protective clothing. Remove contaminated clothes. Rinse skin with plenty of water or shower for at least 15 minutes. Refer immediately for medical attention .

Eyes Redness. Pain. Severe deep burns. Wear face shield or eye protection in combination with breathing protection. Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention.

Ingestion Cough. Sore throat. Abdominal pain. Burning sensation. Shock or collapse. Do not eat, drink, or smoke during work. Wash hands before eating. Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Rest. Refer immediately for medical attention.

 

Application: In the food industry,tribasic sodium phosphate plays a role of quality improvement. It is for food processing of emulsifier, quality improver, nutritional supplements, and increase in food bottles (tank) detergent. trisodium phosphate approved as a food additive in the EU and other countries.
Trisodium phosphate (TSP) is the inorganic compound with the chemical formula Na3PO4. It is a white, granular or crystalline solid, highly soluble in water, producing an alkaline solution. TSP is used as a cleaning agent, builder, lubricant, food additive, stain remover, and degreaser.[7]

 

The item of commerce is often partially hydrated and may range from anhydrous Na3PO4 to the dodecahydrate Na3PO4 • 12H2O. Most often found in white powder form, it can also be called trisodium orthophosphate or simply sodium phosphate.

 

Uses
Cleaning
Trisodium phosphate was at one time extensively used in formulations for a variety of consumer-grade soaps and detergents, and the most common use for trisodium phosphate has been in cleaning agents. The pH of a 1% solution is 12 (i.e., very basic), and the solution is sufficiently alkaline to saponify grease and oils. In combination with surfactants, TSP is an excellent agent for cleaning everything from laundry to concrete driveways. This versatility and low manufacturing price made TSP the basis for a plethora of cleaning products sold in the mid-20th century. TSP is still sold and used as a cleaning agent, but since the late 1960s, its use has diminished in the United States and many other parts of the world because, like many phosphate-based cleaners, it is known to cause extensive eutrophication of lakes and rivers once it enters a water system.[8] Substitutes are generally not as effective.[9]

 

TSP is commonly used after cleaning a surface with mineral spirits to remove hydrocarbon residues and may be used with household chlorine bleach in the same solution without hazardous reactions.[citation needed] This mixture is particularly effective for removing mildew, but is less effective at removing mold.[citation needed]

Although it is still the active ingredient in some toilet bowl-cleaning tablets, TSP is generally not recommended for cleaning bathrooms because it can stain metal fixtures and can damage grout.[10]

 

Chlorinated trisodium phosphate
With the formula {\displaystyle {\ce {Na3PO4.1/4NaOCl.11H2O}}} {\displaystyle {\ce {Na3PO4.1/4NaOCl.11H2O}}} the material called chlorinated trisodium phosphate is used as a disinfectant and bleach, like sodium hypochlorite. It is prepared using NaOCl in place of some of the base to neutralize phosphoric acid.[7]

 

 

Flux
In the U.S., trisodium phosphate is an approved flux for use in hard soldering joints in medical-grade copper plumbing. The flux is applied as a concentrated water solution and dissolves copper oxides at the temperature used in copper brazing. Residues are water soluble and can be rinsed out before plumbing is put into service.

 

TSP is used as an ingredient in fluxes designed to deoxygenate nonferrous metals for casting. It can be used in ceramic production to lower the flow point of glazes.

 

Painting enhancement
TSP is still in common use for the cleaning, degreasing, and deglossing of walls prior to painting. TSP breaks the gloss of oil-based paints and opens the pores of latex-based paint, providing a surface better suited for the adhesion of the subsequent layer.[11][unreliable source?]

 

 

Food additive
Sodium phosphates including monosodium phosphate, disodium phosphate, and trisodium phosphate are approved as food additives in the EU. They are commonly used as acidity regulators and have the collective E number E339.[12] The United States Food and Drug Administration lists sodium phosphates as generally recognized as safe.[13][14]

 

 

Exercise performance enhancement
Trisodium phosphate has gained a following as a nutritional supplement that can improve certain parameters of exercise performance.[15] The basis of this belief is the fact that phosphate is required for the energy-producing Krebs cycle central to aerobic metabolism. Phosphates are available from a number of other sources that are much milder than TSP. While TSP is not toxic per se, it is severely irritating to gastric mucosa unless used as part of a buffered solution.

 

 

Regulation
In the Western world, phosphate usage has declined owing to ecological problems with the damage to lakes and rivers through eutrophication.

 

 

TSP substitutes
See also: Cleaning products and the environment
By the end of the 20th century, many products that formerly contained TSP were manufactured with TSP substitutes, which consist mainly of sodium carbonate along with various admixtures of nonionic surfactants and a limited percentage of sodium phosphates.

 

Products sold as TSP substitutes, containing soda ash and zeolites, are promoted as direct substitutes. However, sodium carbonate is not as strongly basic as trisodium phosphate, making it less effective in demanding applications. Zeolites, which are clay based, are added to laundry detergents as water softening agents and are essentially non-polluting; however, zeolites do not dissolve and can deposit a fine, powdery residue in the wash tub. Cleaning products labeled as TSP may contain other ingredients, with perhaps less than 50% trisodium phosphate.[16]

Trisodium phosphate is produced by neutralization of phosphoric acid using sodium hydroxide, often with sodium carbonate. Carbonate can only produce disodium phosphate:

 

Na2CO3 + H3PO4 › Na2HPO4 + CO2 + H2O
Na2HPO4 + NaOH › Na3PO4 + H2O

 

 

Sodium Phosphate is an inorganic compound used as a laxative, dietary supplement and for electrolyte-replacement purposes. Phosphate, a predominant intracellular anion, plays an important role in energy storage, osteoblastic and osteoclastic activities, regulating serum calcium concentrations, and numerous cellular phosphate-transfer reactions. Sodium phosphate increases fluidity of the intestinal contents by retention of water by osmotic forces, thereby indirectly inducing intestinal smooth muscle constriction. Sodium phosphate is also used in the renal excretion of hydrogen ions while promoting the reabsorption of sodium ions.
Bionecessity HelpNew Window
Phosphate is a major intracellular anion which participates in providing energy for metabolism of substances and contributes to important metabolic and enzymatic reactions in almost all organs and tissues. Phosphate exerts a modifying influence on calcium concentrations, a buffering effect on acid-base equilibrium, and has a major role in the renal excretion of hydrogen ions. /Phosphate/

 

 

Use Classification
Food additives

 

 

Food Improvement Agents
For trisodium phosphate (USEPA/OPP Pesticide Code: 076406) there are 0 labels match. /SRP: Not registered for current use in the U.S., but approved pesticide uses may change periodically and so federal, state and local authorities must be consulted for currently approved uses./

 

National Pesticide Information Retrieval System's USEPA/OPP Chemical Ingredients Database on Trisodium Phosphate (7601-54-9). Available from, as of March 17, 2009: http://npirspublic.ceris.purdue.edu/ppis/

The active ingredient is no longer contained in any registered pesticide products ... "cancelled."

USEPA/OPP; Status of Pesticides in Registration, Reregistration and Special Review p.319 (Spring, 1998) EPA 738-R-98-002

 

from HSDB
Important ingredient in soap powders, detergents, and cleaning agents ... also used as a water softener to remove polyvalent metals and in the manufacture of paper and leather. Products for removing or preventing boiler scale often contain trisodium phosphate, as do those for removing insectide residues from fruit and inhibiting mold.

 

Bingham, E.; Cohrssen, B.; Powell, C.H.; Patty's Toxicology Volumes 1-9 5th ed. John Wiley & Sons. New York, N.Y. (2001)., p. V3: 597

The ability of trisodium phosphate to break fats and greases into water-soluble glycerin and soap makes it extremely useful in scouring powders. When combined with abrasives and chlorine-generating bleaches, trisodium phosphate removes cooking grease and stains.

Toy ADF, Walsh EN; Phosphorus Chemistry in Everyday Living 2nd ed p.87 (1987)

In photographic developers; clarifying sugar; removing boiler scale, softening water; manufacture of paper; laundering; tanning leather; in detergent mixture.

O'Neil, M.J. (ed.). The Merck Index - An Encyclopedia of Chemicals, Drugs, and Biologicals. Whitehouse Station, NJ: Merck and Co., Inc., 2006., p. 1488

Dispersant (easy-cooking cereals); emulsifier (cheese); abrasive metal cleaner ingredient; builder (industrial cleaning formulations); metal phosphatising reagent; softening/conditioning agent (boiler water treatment).

Ashford, R.D. Ashford's Dictionary of Industrial Chemicals. London, England: Wavelength Publications Ltd., 1994., p. 929

Water softeners, boiler-water compounds, detergent, metal cleaner, textiles, manufacture of paper, laundering, tanning, sugar purification, photographic developers, paint removers, industrial cleaners, dietary supplement, buffer, emulsifier, food additive.

Lewis, R.J. Sr.; Hawley's Condensed Chemical Dictionary 15th Edition. John Wiley & Sons, Inc. New York, NY 2007., p. 1154

Metal extraction; refining and processing of metals. Paper, pulp, and board industry. Textile processing industry. Bleaching agents. Cleaning/washing agents and disinfectants. Complexing agents. Cosmetics. Fillers. Food/foodstuff additives. Laboratory chemicals. pH regulating agents. Pharmaceuticals. Photochemicals. Softeners.

European Commission, ESIS; IUCLID Dataset, Trisodium orthophosphate (7601-54-9) p.5 (2000 CD-ROM edition). Available from, as of March 23, 2009: http://esis.jrc.ec.europa.eu/

The effects of dipping treatments (15 min) in potable water or in solutions (wt/vol) of 12% trisodium phosphate (TSP), 1,200 ppm acidified sodium chlorite (ASC), 2% citric acid (CA), and 220 ppm peroxyacids (PA) on inoculated pathogenic bacteria (Listeria monocytogenes, Staphylococcus aureus, Bacillus cereus, Salmonella Enteritidis, Escherichia coli, and Yersinia enterocolitica) and skin pH were investigated throughout storage of chicken legs (days 0, 1, 3, and 5) at 3 +/- 1 deg C. All chemical solutions reduced microbial populations (P<0.001) as compared with the control (untreated) samples...

Del Rio E et al; J Food Prot 70 (9): 2063-71 (2007)

 


Industry Uses 
Agricultural chemicals (non-pesticidal)
Corrosion inhibitors and anti-scaling agents
Finishing agents
Industrial Detergent
Intermediates
Oxidizing/reducing agents
Plating agents and surface treating agents
Processing aids, not otherwise listed
Solvents (for cleaning and degreasing)
Surface active agents
Viscosity adjustors
Cleaning additive

 

 

Consumer Uses 
Agricultural products (non-pesticidal)
Automotive care products
Building/construction materials not covered elsewhere
Cleaning and furnishing care products
Fabric, textile, and leather products not covered elsewhere
Laundry and dishwashing products
Metal products not covered elsewhere
Non-TSCA use
Water treatment products

 

 

Methods of Manufacturing 
Sodium monophosphates are usually produced by neutralization of phosphoric acid with soda ash or caustic soda. The latter is predominantly used in Germany, while in the United States, the less expensive soda ash prevails. The basicity of sodium carbonate is insufficient for the formation of trisodium phosphate, so that caustic soda must be used in this step. The phosphates crystallize from the solutions as hydrates and are separated by centrifugation. Anhydrous salts are obtained by dehydration in rotary dryers or directly from the solutions by spray drying or in rotary kilns. Both thermal phosphoric acid and the cheaper wet phosphoric acid are used as starting materials. The very pure thermal phosphoric acid is generally used in the production of food-grade phosphates. /Sodium monophosphates/

 

Ullmann's Encyclopedia of Industrial Chemistry. 6th ed.Vol 1: Federal Republic of Germany: Wiley-VCH Verlag GmbH & Co. 2003 to Present, p. V26 145 (2003)

Trisodium phosphate is mainly produced as the dodecahydrate by complete neutralization of phosphoric acid with caustic soda or soda ash and subsequent crystallization. Since neutralization with soda ash does not proceed beyond the stage of the disodium salt, caustic soda must be added to complete the reaction. Frequently, mother liquors of mono- or disodium phosphate production or crystalline disodium phosphates are used as starting materials. In another process, trisodium phosphate is obtained by digestion of the phosphate-rich neutralization sludges, which accumulate in the purification of wet phosphoric acid by precipitation, with caustic soda and with addition of water glass

Ullmann's Encyclopedia of Industrial Chemistry. 6th ed.Vol 1: Federal Republic of Germany: Wiley-VCH Verlag GmbH & Co. 2003 to Present, p. V146

By mixing soda ash and phosphoric acid in proper proportions to form disodium phosphate and then adding caustic soda.

Lewis, R.J. Sr.; Hawley's Condensed Chemical Dictionary 15th Edition. John Wiley & Sons, Inc. New York, NY 2007., p. 1154

Sodium hydroxide & monazite (Ce, La, Th)PO4 (salt formation/separation; byproduct of thorium dioxide/rare earth oxide, hydrate production).

Ashford, R.D. Ashford's Dictionary of Industrial Chemicals. London, England: Wavelength Publications Ltd., 1994., p. 929

 

General Manufacturing Information
Industry Processing Sectors
Agriculture, forestry, fishing and hunting
All other chemical product and preparation manufacturing
Cyclic crude and intermediate manufacturing
Food, beverage, and tobacco product manufacturing
Machinery manufacturing
Nonmetallic mineral product manufacturing (includes clay, glass, cement, concrete, lime, gypsum, and other nonmetallic mineral product manufacturing.
Oil and gas drilling, extraction, and support activities
Primary metal manufacturing
Services

 

 

Fire Hazard 
Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.,

 

 

Skin, Eye, and Respiratory Irritations 
Acute exposures to trisodium phosphate may cause irritation of the respiratory system with subsequent coughing and pain.

 

 

Inhalation First Aid 
Fresh air, rest. Half-upright position. Refer immediately for medical attention.

 

 

Skin First Aid 
Remove contaminated clothes. Rinse skin with plenty of water or shower for at least 15 minutes. Refer immediately for medical attention .

 

 

Eye First Aid 
Rinse with plenty of water for several minutes (remove contact lenses if easily possible). Refer immediately for medical attention.

 

 

Ingestion First Aid 
Rinse mouth. Do NOT induce vomiting. Give one or two glasses of water to drink. Rest. Refer immediately for medical attention.

 

 

Fire Fighting 
In case of fire in the surroundings, use appropriate extinguishing media.

 

 

Interactions 
In rabbits fed an arteriosclerosis-inducing diet, simultaneous feeding of trisodium phosphate (50 mg/kg diet) prevented for the 1st month the rise in plasma total lipids and total cholesterol seen in the unmedicated controls. For the next month, these parameters increased to some extent, but less than in the controls. The mechanism of action is thought to involve the metabolism of inorganic phosphate.

 

 

About the product
Approved as a safe food additive by the FDA (GRAS)
Excellent Cheese Sauce Emulsifier
Naturally promotes quick muscle recovery
Enhances food color and processing
Country of Origin: United States of America

 

 

Cas No :- 7758-16-9
Chemical Formula :- Na3po4
Molecular Weight :- 163
Physical Form :- White Free Flowing Powder.
Solubility :- Soluble In Water. 
Ph Of 1% Soln :- 11.8 - 12.2
P2o5 :- 42.0 - 43.5 %
Packing :- 50kgs In Polyethylene Lined Hdpe Bag.
Application :- Used in detergent mixtures, soaps, removing boiler scales, textiles processing, clarifing sugar, paper, water softner, leather tanning, laundering, paint remover,emulsifing fats oils, dairy food processing equipments, metal industrial cleaners

 

 

We cater to the needs of different kind of industries viz Agriculture, Biotech, Cement & Paint. Construction, Cosmetics, Dairies & Cattle Feed Supplement, Poultry, Detergent, Enzymes, Food Processing, Health & Hygiene, Pharmaceuticals & Nutraceuticals, Oil & Gas Field, Power Plants, Plastic, Paper & Printing, Pesticides, Resins, Textiles, Water & Waste Treatment Plant etc. 
We have been serving our clients with the highest quality products at reasonable prices which has earned us a repute all over India. Our list of satisfied customers comprise of company of high repute like Fermenta Biotech, Hitech Biosciences, Nirma Ltd, Reckitt Benckiser Healthcare India Pvt Ltd, Vimal Oil, Zydus Group etc. We present companies like Simbhaoli Sugar Mills Ltd as their authorized distributors. We are the prominent trader, supplier, manufacturer in this cut throat market.
At present we keep regular stocks of following chemicals at our godown for our day to day supplies.
EDTA and its Di and Tetra Sodium Salt in liquid and powder form.
HEDP and its Di and Tetra Sodium Salt in liquid and powder form. 
Citric Acid, Calcium Citrate. Ferric Ammonium Citrate, Potassium and Sodium Citrate.
Mono and Di Ammonium Phosphate.
Mono and Di Potassium Phosphate. 
Mono,Di and Tri Sodium Phosphate. 
Mono,Di and Tri Calcium Phosphate.
Ammonim, Potassium and Sodium Per Sulphate.
Ascorbic Acid, Adipic Acid, Corn Steep Liquor, Filter aid, Fumaric Acid, Hypophosphorous Acid 30% and 50%, Hydroaylamine Sulphate, Lactic Acid, Malic Acid, Magnesium Oxide, Polyelectrolyte, Succinic Acid, Sorbic Acid, Tartaric Acid, Tannic Acid. Aluminium Phosphate, Sodium Acid Pyro Phosphate, Sodium Hexa Meta Phosphate, Sodium Aluminium Phosphate, Sodium Mono Fluoro Phosphate. HPMC, MHEC Powder, R.D.Powder, Sodium Gluconate, Sodium CMC, Sodium Ligno Sulphonate, Xanthan Gum. Fructose Powder, Dextrose Mono and Anhy, Sorbitol Powder, Sucrose, Starch and its derivatives. Anticacking Agent, Iodophor, Calcium and Sodium Propionate. Ammonium, Potassium and Sodium Dichromate. MCA, NTA and Tri Sodium NTA.
Please go through our detailed product range for a specific chemical. You may also enquire about the items not listed in our product range we source them from our domestic and international associates. Our godowns are located in transport area Sarkhej outskirts of Ahmedabad for making timely delivery between 11.00am to 6.30pm.
Sourcing of a new specific product is a specialized job requiring knowhow and utmost care in identifying, matching and procuring the right material in a short time while getting the best deal. Our methodology to work at a new product is as under.
Understanding the product in respect of its usage and thus judging the quality required.
Checking the availability of the product from indigenous as well as international associates/markets.
Satisfying ourselves with the quality offered by the manufacturer/supplier.
Submission of offer/proposal/quotation.
Providing clearification and information on the proposal. More Specifically on providing the following information.

 

Trisodium Phosphate Anhydrous (TSPa) Powder is a white, free-flowing powdered product use for its strongly alkaline salt, emulsifying agent, protein modifier and buffer capacity properties. TSP is used to make a soft process cheese that melts & flows easily at 75-80°C. The TSP sequesters the calcium from the cheese protein causing the protein to dissolve and emulsify the system. The high alkalinity of TSP is advantageous when quicker cooking rates are desirable in cooked breakfast cereals. Increased pH also makes the product more creamy or yellow in color giving a richer appearance.

 

Melting point:1340°C
storage temp. -20°C
solubility H2O: slightly soluble(lit.)
form Powder
color White
Water Solubility Soluble in water. Insoluble in ethanol and carbon disulfide.
Sensitive Hygroscopic

 

 

Description
Trisodium phosphate (TSP) is an inorganic salt used as industrial detergents, metal treatment and in toilet floor cleaners. TSP is pure cleaning power. Used as a water softener; for the treatment of boiler water; as a paint remover; in photographic developers; for tanning leather; for manufacturing paper; for clarifying sugar.
Also, it is a common laboratory reagent. Use to dissolve dirt, grease, and mildew from siding, decks, masonry, boats, campers. To prepare surfaces before painting or staining wash with TSP. Trisodium phosphate is an approved food additive in the U.S., European Union and other countries of the world. It may be added to foods and beverages or smoothies and green drinks. The primary function of trisodium phosphate is acidity regulation. It is commonly present in dry, extruded cereals. Together with other phosphates, it modifies cereal color, aids the cereal's flow through the extruder and provides phosphorus fortification. It is also commonly present in cheese sauces as an emulsifier. Trisodium phosphate is a strong chemical and can cause severe eye damage and can burn unprotected skin. Poisoning occurs if you swallow, breathe in, or spill large amounts of this substance on your skin.
Chemical Properties
Trisodium phosphate (anhydrous) is a white, granular or crystalline solid, highly soluble in water and produces a strong alkaline solution. On exposure to heat, trisodium phosphate decomposes and produces toxic and corrosive fumes including phosphorous oxides.
The major use for trisodium phosphate is as a cleaning agent, food additive, stain remover, and degreaser. Trisodium phosphate of commercial grade is often partially hydrated and ranges from anhydrous trisodium phosphate, Na3PO4, to the dodecahydrate, Na3PO4 · 12H2O. Most often found in white powder form, it is also called trisodium orthophosphate or just plain sodium phosphate. Trisodium phosphate reacts violently with water and acids to liberate heat. Trisodium phosphate is corrosive and in the presence of water attacks many metals.
Trisodium phosphate is an approved flux for use in hard soldering joints in medical grade copper plumbing. The flux is applied as a concentrated water solution and dissolves copper oxides at the temperature used in copper brazing. Residues are fully water soluble and can be rinsed out of plumbing before it is put in service. Also, trisodium phosphate is still in vast use for the cleaning, degreasing, and deglossing of walls prior to painting. In fact, application of trisodium phosphate breaks the gloss of oil-based paints and opens the pores of latex-based paint providing a surface better suited for the adhesion of the subsequent layer of paint.
Uses
Trisodium phosphate (TSP) is a cleaning agent, lubricant, food additive, stain remover and degreaser. It is an alkaline cleaning agent that has been used as a household cleaner for many years, but ecological problems have largely ended that practice, at least in the western world. Substitutes are not as effective, but the raw chemical can be bought in bulk to add to other detergents. It works by disrupting the bacterial cell membrane and causing the contents to leak out, though the exact mechanism is not fully elucidated (Oyarzabal, 2005). Trisodium phosphate solutions are approved for treatment of beef carcasses in the US Code of Federal Regulations (21 CFR 182.1778; FDA 2003).
By the end of the 20th century, many products that formerly contained TSP were manufactured with TSP substitutes, which consist mainly of sodium carbonate along with various admixtures of nonionic surfactants and a limited percentage of sodium phosphates. TSP is commonly used after cleaning with mineral spirits in order to remove hydrocarbon residues. TSP may be used with household chlorine bleach in the same solution without hazardous reactions. This mixture is particularly good for removing mildew, but is ineffective at permanently removing mold.
Uses
sodium phosphate helps maintain product pH.
Uses
Trisodium Phosphate is an emulsifier and buffer that is strongly alkaline, with a ph of 12. it is moderately soluble in water, with a solubility of 14 g/100 ml at 25°c. it functions as an emulsifier in processed cheese to improve texture. it maintains viscosity and pre- vents phase separation in evaporated milk and is also found in cereals. it is also termed trisodium orthophosphate, sodium phosphate tribasic, and trisodium monophosphate.
Preparation
Trisodium phosphate may be prepared in two steps, first by adding a little excess of sodium carbonate to phosphoric acid and then boiling the solution to expel carbon dioxide. Sodium hydroxide is then added to the solution:
Na2CO3+ H3PO4›Na2HPO4+ CO2+ H2O
Na2HPO4+ NaOH ›Na3PO4+ H2O
Alternatively, trisodium phosphate may be prepared by complete neutralization of phosphoric acid with sodium hydroxide, followed by evaporation and crystallization:
H3PO4+ 3NaOH ›Na3PO4+ 3H2O
Hazard
Toxic by ingestion, irritant to tissue.
Industrial uses
Different salts of phosphoric and polyphosphoric acids are used in flotation. From this fairly large family of reagents, sodium phosphate is the preferred species. Trisodium phosphate is a white, crystalline substance highly soluble in water. Neutralizing phosphoric acid with soda ash produces trisodium phosphate. 
Mono- and disodium phosphates are rarely used.
Safety Profile
Moderately toxic by intravenous route. Mutation data reported. A strong, caustic material. When heated to decomposition it emits toxic fumes of Na2O and POx. See also PHOSPHATES.

 

Sodium Phosphate Tribasic Anhydrous is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

 

Form Powder or granules
Colour White
Odour None
Change in physical state Hydrated lose water above 100oC to give
anhydrous substance which melts without
decomposition above 1000oC (1832oF)
Bulk Density 0.9-1.1 g/ml dependent on grade (50 taps)
Vapour pressure Not applicable
Viscosity Not applicable
Solubility 12.5 g/100 g water at 20oC, 90 g/100 g
water at 90oC
pH Value 12.1 at 20oC (1% soln)
Flash point Not applicable
Ignition temperature Does not burn or help other materials to
burn
Explosion limits Not relevant

 

TSP is suitable for the following usages:

 

Cleaning agent / stain remover/ Degreaser
Use for cleaning surfaces prior to painting
Use to remove paint, varnish and shellac
Cleans paint brushes
Mixed with chlorine bleach is excellent for removing mildew on wood without whitening the wood.
Boiler cleaning for the precipitation of calcium.
Buffering agent to maintain pH in solutions.
Emulsifier / Thickener / Sequestrant.
............... and many more uses.

 

HOW TO USE TRISODIUM PHOSPHATE:

 

For General Cleaning: Mix 10g of TSP per litre of warm / hot water. Apply using a damp sponge or cloth or mop to surface and allow a few minutes to work. Rinse thoroughly with clean water and dry.
For Heavy Duty Cleaning: To remove heavy grease and oil, mix 15g - 20g of TSP per litre of hot water. Apply to surface and allow a few minutes contact time. Rinse thoroughly.
Cleaning Paintwork Prior To Repainting: To remove gloss from existing paint and to open the pores, use a solution of 10g - 15g TSP per litre of warm water. Allow a contact time of 5-10 minutes. Rinse thoroughly and dry before repainting. To ensure complete neutralisation of the TSP solution one can wipe the surface down with a solution of vinegar followed by rinsing with clean water.
Removing soot from bricks etc: Mix about a cupful of TSP in 5 litres of hot water and scrub surface. Rinse off with clean water.
For Cleaning Decking, Roofs, Driveways etc: Make a solution of 15g TSP per litre of water. Brush or mop onto surface and allow 10 minutes to work. Agitate with a brust to remove soiling and rinse thoroughly with clean water. Always check suitability of solution when using on wooden surface. TSP can darken some wood and raise the grain. If darkening should occur dilute solution 50:50 with water and reduce the contact time significantly.
For Moss & Mould Removal: Mix 10g of TSP per litre of water and add 250mls of household bleach. Leave on surface for 30 minutes, agitate with a brush and rinse with clean water.
For Paint Removal: Make a solution of 125g TSP per litre of water. Brush solution onto paint and leave for 30 minutes. Remove softened paint with a scrapper. When finished rinse thoroughly with clean water.
For Paintbrush Cleaning: Soak brushes in a solution of TSP (20g per litre of water)

 

 

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