Sodium triphosphate (CAS 7758-29-4) — formula Na3PO4, molecular weight 163.941; category inorganic chemicals.
| CAS Number | 7758-29-4 |
|---|---|
| Molecular Formula | Na3PO4 |
| Molecular Weight | 163.941 |
| Melting Point | 170.06 °F (USCG, 1999) |
| Applications | Uses: CIR ingredient: Trisodium Phosphate, Used in soaps and detergents, Used in paper and leather manufacturing, [CHEMINFO] Used in scouring powders, photographic developers, water softeners, boiler scale removers, and food additives, [HSDB], Pulp and Paper Processing [Category: Industry], Leather Tanning and Processing [Category: Industry], Photographic Processing [Category: Other], Used in photographic developers and detergents, Also used to clarify sugar, remove boiler scale, soften water, make paper, and tan leather, [Merck Index] Used in dairy substitutes, to remove insecticides from fruit, and to inhibit mold, [HSDB] Used mainly in the dodecahydrate form as an alkaline source, e.g., heavy-duty cleaner and scouring agent, [AIHA], 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., The active ingredient is no longer contained in any registered pesticide products ... "cancelled.", 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., 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., For more Uses (Complete) data for TRISODIUM PHOSPHATE (9 total), please visit the HSDB record page., Use Classification: EPA Safer Chemical Functional Use Classes -> Oxidants and Oxidant Stabilizers, Safer Chemical Classes -> Yellow triangle - The chemical has met Safer Choice Criteria for its functional ingredient-class, but has some hazard profile issues, Food Additives -> ACIDITY_REGULATOR, SEQUESTRANT, STABILIZER -> JECFA Functional Classes, Plastics -> Pigments agents, Cosmetics -> Buffering, Chelating, Plastics -> Polymer Type -> N.a., Industry Uses: pH regulating agent, Surfactant (surface active agent), Lubricating agent, Other, Anti-scaling agent, Emulsifier, Soil amendments (fertilizers), Not Known or Reasonably Ascertainable, Corrosion inhibitor, Cleaning agent, Consumer Uses: Lubricating agent, Thickening agent, Softener and conditioner, Laboratory chemicals, Household Products: Information on 36 consumer products that contain Trisodium phosphate anhydrous in the following categories is provided:, • Auto Products, • Commercial, Institutional, • Home Maintenance, • Inside the Home, • Personal Care, 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, 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, By mixing soda ash and phosphoric acid in proper proportions to form disodium phosphate and then adding caustic soda., Sodium hydroxide & monazite (Ce, La, Th)PO4 (salt formation, separation, byproduct of thorium dioxide, rare earth oxide, hydrate production)., Formulations, Preparations: Trisodium phosphate, 1-4% in Crest Fluoride gel and Crest Fluoride toothpaste., Anhydrous, technical grades: anhydrous and crystalline, granular and powder food grades., Grade: Commercial, high purity, CP, chemically pure - a grade designation signifying a minimum of impurities, but not 100% purity, FCC (anhydrous), anhydrous salt, Consumption Patterns: 46% AS AN INDUSTRIAL & INSTITUTIONAL DETERGENT BUILDER & IN WATER TREATMENT, 27% AS A HOUSEHOLD DETERGENT BUILDER & IN WATER TREATMENT, 19% IN ELASTOMERS & FOR EXPORT, 7% IN HOUSEHOLD SCOURING CLEANSERS, 1% AS EMULSIFIER IN PROCESSED CHEESE (1973)., U.S. Production: 2023: 4, 000, 000 - <5, 500, 000 lb, 2022: 4, 2021: 5, 000 - <7, 2020: 4, (1972) 5.25X10+10 GRAMS, (1975) 5.1X10+10 GRAMS, Well over 100 million lb of trisodium phosphate is consumed annually in the USA., Production volumes |
| Category | Inorganic Chemicals |
Documented applications: Uses: CIR ingredient: Trisodium Phosphate, Used in soaps and detergents, Used in paper and leather manufacturing, [CHEMINFO] Used in scouring powders, photographic developers, water softeners, boiler scale removers, and food additives, [HSDB], Pulp and Paper Processing [Category: Industry], Leather Tanning and Processing [Category: Industry], Photographic Processing [Category: Other], Used in photographic developers and detergents, Also used to clarify sugar, remove boiler scale, soften water, make paper, and tan leather, [Merck Index] Used in dairy substitutes, to remove insecticides from fruit, and to inhibit mold, [HSDB] Used mainly in the dodecahydrate form as an alkaline source, e.g., heavy-duty cleaner and scouring agent, [AIHA], 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., The active ingredient is no longer contained in any registered pesticide products ... "cancelled.", 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., 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., For more Uses (Complete) data for TRISODIUM PHOSPHATE (9 total), please visit the HSDB record page., Use Classification: EPA Safer Chemical Functional Use Classes -> Oxidants and Oxidant Stabilizers, Safer Chemical Classes -> Yellow triangle - The chemical has met Safer Choice Criteria for its functional ingredient-class, but has some hazard profile issues, Food Additives -> ACIDITY_REGULATOR, SEQUESTRANT, STABILIZER -> JECFA Functional Classes, Plastics -> Pigments agents, Cosmetics -> Buffering, Chelating, Plastics -> Polymer Type -> N.a., Industry Uses: pH regulating agent, Surfactant (surface active agent), Lubricating agent, Other, Anti-scaling agent, Emulsifier, Soil amendments (fertilizers), Not Known or Reasonably Ascertainable, Corrosion inhibitor, Cleaning agent, Consumer Uses: Lubricating agent, Thickening agent, Softener and conditioner, Laboratory chemicals, Household Products: Information on 36 consumer products that contain Trisodium phosphate anhydrous in the following categories is provided:, • Auto Products, • Commercial, Institutional, • Home Maintenance, • Inside the Home, • Personal Care, 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, 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, By mixing soda ash and phosphoric acid in proper proportions to form disodium phosphate and then adding caustic soda., Sodium hydroxide & monazite (Ce, La, Th)PO4 (salt formation, separation, byproduct of thorium dioxide, rare earth oxide, hydrate production)., Formulations, Preparations: Trisodium phosphate, 1-4% in Crest Fluoride gel and Crest Fluoride toothpaste., Anhydrous, technical grades: anhydrous and crystalline, granular and powder food grades., Grade: Commercial, high purity, CP, chemically pure - a grade designation signifying a minimum of impurities, but not 100% purity, FCC (anhydrous), anhydrous salt, Consumption Patterns: 46% AS AN INDUSTRIAL & INSTITUTIONAL DETERGENT BUILDER & IN WATER TREATMENT, 27% AS A HOUSEHOLD DETERGENT BUILDER & IN WATER TREATMENT, 19% IN ELASTOMERS & FOR EXPORT, 7% IN HOUSEHOLD SCOURING CLEANSERS, 1% AS EMULSIFIER IN PROCESSED CHEESE (1973)., U.S. Production: 2023: 4, 000, 000 - <5, 500, 000 lb, 2022: 4, 2021: 5, 000 - <7, 2020: 4, (1972) 5.25X10+10 GRAMS, (1975) 5.1X10+10 GRAMS, Well over 100 million lb of trisodium phosphate is consumed annually in the USA., Production volumes.
Sodium triphosphate is an inorganic compound with CAS registry number 7758-29-4 and molecular formula Na3PO4 (molecular weight 163.941), belonging to the inorganic chemicals segment of chemical raw materials.
CAS number: 7758-29-4
Its molecular formula Na3PO4 comprises 3 Na, 1 P, 4 O atoms.
Also known as: Sodium triphosphate · Sodium Tripolyphosphate
Category: inorganic chemicals
The CAS registry number of Sodium triphosphate is 7758-29-4.
Molecular formula Na3PO4, molecular weight 163.941.
It is also registered under: Sodium triphosphate, Sodium Tripolyphosphate.
Recorded applications: Uses: CIR ingredient: Trisodium Phosphate, Used in soaps and detergents, Used in paper and leather manufacturing, [CHEMINFO] Used in scouring powders, photographic developers, water softeners, boiler scale removers, and food additives, [HSDB], Pulp and Paper Processing [Category: Industry], Leather Tanning and Processing [Category: Industry], Photographic Processing [Category: Other], Used in photographic developers and detergents, Also used to clarify sugar, remove boiler scale, soften water, make paper, and tan leather, [Merck Index] Used in dairy substitutes, to remove insecticides from fruit, and to inhibit mold, [HSDB] Used mainly in the dodecahydrate form as an alkaline source, e.g., heavy-duty cleaner and scouring agent, [AIHA], 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., The active ingredient is no longer contained in any registered pesticide products ... "cancelled.", 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., 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., For more Uses (Complete) data for TRISODIUM PHOSPHATE (9 total), please visit the HSDB record page., Use Classification: EPA Safer Chemical Functional Use Classes -> Oxidants and Oxidant Stabilizers, Safer Chemical Classes -> Yellow triangle - The chemical has met Safer Choice Criteria for its functional ingredient-class, but has some hazard profile issues, Food Additives -> ACIDITY_REGULATOR, SEQUESTRANT, STABILIZER -> JECFA Functional Classes, Plastics -> Pigments agents, Cosmetics -> Buffering, Chelating, Plastics -> Polymer Type -> N.a., Industry Uses: pH regulating agent, Surfactant (surface active agent), Lubricating agent, Other, Anti-scaling agent, Emulsifier, Soil amendments (fertilizers), Not Known or Reasonably Ascertainable, Corrosion inhibitor, Cleaning agent, Consumer Uses: Lubricating agent, Thickening agent, Softener and conditioner, Laboratory chemicals, Household Products: Information on 36 consumer products that contain Trisodium phosphate anhydrous in the following categories is provided:, • Auto Products, • Commercial, Institutional, • Home Maintenance, • Inside the Home, • Personal Care, 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, 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, By mixing soda ash and phosphoric acid in proper proportions to form disodium phosphate and then adding caustic soda., Sodium hydroxide & monazite (Ce, La, Th)PO4 (salt formation, separation, byproduct of thorium dioxide, rare earth oxide, hydrate production)., Formulations, Preparations: Trisodium phosphate, 1-4% in Crest Fluoride gel and Crest Fluoride toothpaste., Anhydrous, technical grades: anhydrous and crystalline, granular and powder food grades., Grade: Commercial, high purity, CP, chemically pure - a grade designation signifying a minimum of impurities, but not 100% purity, FCC (anhydrous), anhydrous salt, Consumption Patterns: 46% AS AN INDUSTRIAL & INSTITUTIONAL DETERGENT BUILDER & IN WATER TREATMENT, 27% AS A HOUSEHOLD DETERGENT BUILDER & IN WATER TREATMENT, 19% IN ELASTOMERS & FOR EXPORT, 7% IN HOUSEHOLD SCOURING CLEANSERS, 1% AS EMULSIFIER IN PROCESSED CHEESE (1973)., U.S. Production: 2023: 4, 000, 000 - <5, 500, 000 lb, 2022: 4, 2021: 5, 000 - <7, 2020: 4, (1972) 5.25X10+10 GRAMS, (1975) 5.1X10+10 GRAMS, Well over 100 million lb of trisodium phosphate is consumed annually in the USA., Production volumes.
Category: Inorganic Chemicals.
Independent reference data for Sodium triphosphate (CAS 7758-29-4), compiled from public chemistry databases.
| CAS Registry Number | 7758-29-4 |
|---|---|
| PubChem CID | 24243 |
| Molecular formula | Na3PO4 |
| IUPAC name | trisodium;phosphate |
| UNII (FDA) | SX01TZO3QZ |
| Molecular Weight | 163.941 |
|---|---|
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 0 |
| Exact Mass | 163.92272832 |
| Monoisotopic Mass | 163.92272832 |
| Topological Polar Surface Area | 86.3 |
| Heavy Atom Count | 8 |
| Melting Point | 170.06 °F (USCG, 1999) |
|---|---|
| Melting Point | 170 °F |
| Melting Point | 1583 °C |
| Solubility | 14.5 g/100 g water at 25 °C |
| Solubility | 25.8 g sol in 100 g water at 20 °C |
| Density | 2.54 g/cu cm |
| Decomposition | 75 °C |
TRISODIUM PHOSPHATE; 7601-54-9; Trisodium orthophosphate; Tromete; Tribasic sodium phosphate; Phosphoric acid, trisodium salt; Oakite; Phosphoric acid trisodium salt; Sodium phosphate, anhydrous; Trinatriumphosphat; Nutrifos STP; Dri-Tri; Antisal 4; Tertiary sodium phosphate; Sodium phosphate (Na3PO4); Tribasic sodium orthophosphate
| Regulatory & Food Contact | FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS ACIDITY_REGULATOR; SEQUESTRANT; STABILIZER: Food Additives Trisodium phosphate is obtained from aqueous solutions and crystallises in the anhydrous form and with 1/2, 1, ANTICAKING AGENT OR FREE-FLOW AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT, FORMULATION AID, HUMECTANT, Group MTDI for phosphorus from all sources, expressed as P |
|---|---|
| GHS notification summary | 5.5% (77 / 1393) |
| GHS notification summary | 5.5% (77 / 1393) |
|---|---|
| Reported hazard statements | H315 (90.2%), H319 (90.1%), H335 (85.1%), H314, H318 |
This chemical does not meet GHS hazard criteria for 5.5% (77 of 1393) of reports.
H315 (90.2%): Causes skin irritation [Warning Skin corrosion/irritation]
Sodium triphosphate · CAS 7758-29-4 · Na3PO4. UNII SX01TZO3QZ. Melting Point: 170.06 °F (USCG, 1999); Melting Point: 170 °F; Melting Point: 1583 °C.
Source: PubChem / Wikidata; the batch COA governs where values differ.
Supplier: Jinan Shenghe Chemical Co., Ltd.
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