[033385] CAS 13472-36-1 | Sodium pyrophosphate decahydrate, ACS, 99.0-103.0%

CAS : 13472-36-1
MDL : MFCD00149200
EINECS : 231-767-1

Other name :

Sodium phosphate (pyro)Tetrasodium pyrophosphate

Chemical Properties

Formula : Na4O7P2•10H2O
Formula weight : 446.06 (265.90anhy)
Melting Point : 79.5°
Density : 1.82
Sensitivity : Ambient temperatures.
Form : Crystalline
Solubility : Soluble in water. Insoluble in alcohol and ammonia.

Applications

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.

Grade Specifications

Maximum level of impurities: Insoluble matter 0.01%, pH of a 5% solution 9.5-10.5 at 25�, Cl 0.002%, SO4 0.005%, N 0.001%, Heavy Metals (as Pb) 0.001%, Fe 0.001%

GHS Hazard and Precautionary Statements

Hazard Statements : H315-H319-H335-H303Causes skin irritation.Causes serious eye irritation.May cause respiratory irritation.May be harmful if swallowed.
Precautionary Statements : P261-P305+P351+P338-P302+P352-P321-P405-P501aAvoid breathing dust/fume/gas/mist/vapours/spray.IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.IF ON SKIN: Wash with plenty of soap and water.Specific treatment (see label).Store locked up.Dispose of contents/container in accordance with local/regional/national/international regulations.

Other References :

Merck : 14,9240