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Tetrasodium pyrophosphate

Tetrasodium pyrophosphate
Tetrasodium pyrophosphate structure
CAS No.
7722-88-5
Chemical Name:
Tetrasodium pyrophosphate
Synonyms
pyro;TSPP;Nsc56751;phosphotex;victortspp;SODIUM DI;pyrophosphate;jiaolinsuanan;SODIUM DIPHOSPHATE;natriumpyrophosphat
CBNumber:
CB3394942
Molecular Formula:
Na4O7P2
Formula Weight:
265.902402
MOL File:
7722-88-5.mol

Tetrasodium pyrophosphate Properties

Melting point:
80 °C
Boiling point:
93.8 °C
Density 
2.53 g/mL at 25 °C(lit.)
storage temp. 
Store at room temperature.
solubility 
H2O: 0.1 M at 20 °C, clear, colorless
form 
Granular
color 
White
Specific Gravity
2.534
Odor
Odorless
PH Range
10.3
Water Solubility 
Soluble in water. Insoluble in ethyl alcohol.
Sensitive 
Hygroscopic
Merck 
14,9240
Stability:
Stable. Incompatible with strong oxidizing agents.
InChIKey
FQENQNTWSFEDLI-UHFFFAOYSA-J
CAS DataBase Reference
7722-88-5(CAS DataBase Reference)
FDA 21 CFR
; ; ; ; ; ; ; ;
SCOGS (Select Committee on GRAS Substances)
Substances Added to Food (formerly EAFUS)
EWG's Food Scores
EPA Substance Registry System
SAFETY
  • Risk and Safety Statements
Symbol(GHS) 
GHS05,GHS07
Signal word  Danger
Hazard statements  H315-H319-H335-H302-H318
Precautionary statements  P261-P280a-P304+P340-P405-P501a-P280-P305+P351+P338
Hazard Codes  Xi,Xn
Risk Statements  36/37/38-41-22
Safety Statements  26-36-39
WGK Germany  3
RTECS  UX7350000
TSCA  Yes
HS Code  28353990

Tetrasodium pyrophosphate price More Price(6)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich P8010 Sodium pyrophosphate tetrabasic ≥95% 7722-88-5 500g $42.4 2020-12-02 Buy
Sigma-Aldrich P8010 Sodium pyrophosphate tetrabasic ≥95% 7722-88-5 2.5kg $195 2020-12-02 Buy
Alfa Aesar 013439 Sodium pyrophosphate, anhydrous tech. 7722-88-5 1kg $61 2021-06-24 Buy
Alfa Aesar 013439 Sodium pyrophosphate, anhydrous tech. 7722-88-5 250g $30.6 2021-06-24 Buy
Alfa Aesar A17546 Sodium pyrophosphate 98% 7722-88-5 250g $30.6 2021-06-24 Buy

Tetrasodium pyrophosphate Chemical Properties,Uses,Production

Description

Sodium pyrophosphate, also called Tetrasodium pyrophosphate or TSPP is used in the laboratory as a buffering agent. The compound has been shown to be useful in the preparation of an EDTA-sodium pyrophosphate extraction buffer for microcystin analysis of soil samples. Tetrasodium pyrophosphate is an odorless, white powder or granules. It is used in water softener, buffering agent, thickening agent, dispersing agent, wool de-fatting agent, metal cleaner, soap and synthetic detergent builder, general sequestering agent, in electrodeposition of metals. It also acts as a tartar control agent in toothpaste and dental floss. In addition, it is used as a chelating agent in antimicrobial studies. It is also used as a food additive in common foods such as chicken nuggets, crab meat and canned tuna.

Chemical Properties

Tetrasodium pyrophosphate is a white crystalline powder or colourless crystals with the formula Na4P2O7. It contains the pyrophosphate ion and sodium cation. Toxicity is approximately twice that of table salt when ingested orally. There is also a hydrated form, Na4P2O7.10H2O.
Tetrasodium pyrophosphate
Tetrasodium pyrophosphate is used as a buffering agent, an emulsifier, a dispersing agent, and a thickening agent, and is often used as a food additive. It is widely used as an emulsifying salt (ES) in process cheese. Common foods containing sodium pyrophosphate include chicken nuggets, marshmallows, pudding, crab meat, imitation crab, canned tuna, and soy-based meat alternatives and cat foods and cat treats where it is used as a palatability enhancer. It is the active ingredient in Bakewell, the substitute for baking powder's acid component marketed during shortages in World War II. It is also used in some common baking powders.

Uses

Pharmaceutic aid.
Tetrasodium pyrophosphate (Na4P2O7) is a non-toxic and biocompatible compound used as an electroactive media for exfoliation of the surface coating. It is also be used as an additive in the food industry.
Na4P2O7 can be used as an inorganic additive to improve the stability and electrochemical performance of redox flow batteries.

Uses

Tetrasodium Pyrophosphate is a coagulant, emulsifier, and sequestrant that is mildly alkaline, with a ph of 10. it is moderately soluble in water, with a solubility of 0.8 g/100 ml at 25°c. it is used as a coagulant in noncooked instant puddings to provide thicken- ing. it functions in cheese to reduce the meltability and fat separa- tion. it is used as a dispersant in malted milk and chocolate drink powders. it prevents crystal formation in tuna. it is also termed sodium pyrophosphate, tetrasodium diphosphate, and tspp.

Preparation

Tetrasodium pyrophosphate is formed when pure disodium hydrogen orthophosphate is heated to 500℃ for 5 hours. The product will contain better than 98 per cent Na4P2O7. Crystalline masses large enough for optical measurements are produced by heating in platinum to above the melting point of the tetrasodium pyrophosphate, 800°, and cooling slowly. Higher temperatures or longer heating times do not change the tetrasodium pyrophosphate, as this is the final product in the dehydration of disodium hydrogen orthophosphate.

General Description

Odorless, white powder or granules. Mp: 995°C. Density: 2.53 g cm-3. Solubility in water: 3.16 g / 100 mL (cold water); 40.26 g / 100 mL boiling water. Used as a wool de-fatting agent, in bleaching operations, as a food additive. The related substance Tetrasodium pyrophosphate decahydrate (Na4P2O7 0H2O) occurs as colorless transparent crystals. Loses its water when heated to 93.8°C.

Reactivity Profile

Tetrasodium pyrophosphate is basic. Reacts exothermically with acids. Incompatible with strong oxidizing agents. Decomposes in ethyl alcohol.

Hazard

Toxic by inhalation.

Safety Profile

Poison by ingestion, intraperitoneal, intravenous, and subcutaneous routes. It is not a cholinesterase inhibitor. When heated to decomposition it emits toxic fumes of POx and Na2O.

Tetrasodium pyrophosphate Preparation Products And Raw materials

Raw materials

Preparation Products


Tetrasodium pyrophosphate Suppliers

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View Lastest Price from Tetrasodium pyrophosphate manufacturers

Image Release date Product Price Min. Order Purity Supply Ability Manufacturer
2021-07-02 Tetrasodium Pyrophosphate
7722-88-5
US $0.80 / KG 1T 96.5% 1000tons/month Hebei Yanxi Chemical Co., Ltd.
2021-06-24 Tetrasodium pyrophosphate
7722-88-5
US $1300.00 / T 25KG 99.99% 20ton Hebei Mojin Biotechnology Co., Ltd
2021-05-20 Tetrasodium pyrophosphate
7722-88-5
US $1.00-1.00 / KG 1g 99% 50ton Shaanxi Dideu Medichem Co. Ltd

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