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Sodium pyrophosphate decahydrate (Na4P2O7•10H2O)- Crystalline

Sodium pyrophosphate decahydrate (Na4P2O7•10H2O)- Crystalline

CAS: 13472-36-1
Molecular Formula: Na4P2O7•10H2O
Purity: 99.0-99.999%
Products Code: TR1115080101CY
Specification Model: -100 Mesh
EINECS No.: 231-767-1
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Sodium pyrophosphate decahydrate (Na4P2O7•10H2O)- Crystalline 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:H20Na4O17P2

Molar mass: 446.06 g/mol

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 decahydrate is used as a buffering agent, an emulsifier, a thickening agent, a food additive and a dispersing agent. It acts as a tartar control agent in tooth paste and dental floss and is used to remove calcium and magnesium from saliva, thereby avoiding its deposition on teeth. It is utilized in detergents to prevent deposition on cloth. It is useful in the preparation of an EDTA-sodium pyrophosphate extraction buffer for microcystin analysis of soil samples. In antimicrobial studies, it is used as a chelating agent.
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