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Sodium pyrophosphate (Na4P2O7)-Granules

Sodium pyrophosphate (Na4P2O7)-Granules

CAS: 7722-88-5
Molecular Formula: Na4P2O7
Purity: 99%-99.9%
Products Code: TR11150801GN
Specification Model: 1-3mm
EINECS No.: 231-767-1
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Sodium pyrophosphate (Na4P2O7)-Granules introduce:

Characteristic

 

Tetrasodium pyrophosphate, also called sodium pyrophosphate, tetrasodium phosphate or TSPP, is an inorganic compound with the formula Na4P2O7. As a salt, it is a white, water-soluble solid. It is composed of pyrophosphate anion and sodium ions.




Chemical formula:Na4P2O7

Molar mass: 265.900 g·mol−1

Appearance: Colorless or white crystals

Odor: odorless

Density: 2.534 g/cm3

Melting point: 988 °C (1,810 °F; 1,261 K) (anhydrous);79.5 °C (decahydrate)

Boiling point: decomposes

Solubility in water:2.61 g/100 mL (0 °C);6.7 g/100 mL (25 °C);42.2 g/100 mL (100 °C)

Solubility: insoluble in ammonia, alcohol

Refractive index (nD):1.425

Crystal structure:monoclinic (decahydrate)

 


Application

 

Sodium pyrophosphate is used in water softener, detergent, emulsifying agent, metal cleaner and nutritional supplement. It acts as a buffering agent, thickening agent and dispersing agent. 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.
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