Sodium metaphosphate

Agent Name
Sodium metaphosphate
Alternative Name
Maddrell's salt
CAS Number
10361-03-2
Formula
H-O3-P.Na
Major Category
Metals
Sodium metaphosphate formula graphical representation
Synonyms
Insoluble metaphosphate; Insoluble sodium metaphosphate; Sodium metaphosphate, insoluble; Graham's salt; Kurrol's salt; Maddrell's salt; Metafos; Metaphosphoric acid (HPO3), sodium salt; Metaphosphoric acid (HPO3), sodium salt, homopolymer; Poly(sodium metaphosphate); Polymeric sodium metaphosphate; Sodium Kurrol's salt; Sodium phosphate (NaPO3); Sporix; [ChemIDplus] Maddrell’s salt; Polymeric sodium metaphosphate; [Merck Index]
Category
Phosphates, Metallic Salts
Description
White solid, practically insoluble in water; [Merck Index]
Sources/Uses
Used in toothpaste and dentifrices (abrasive), detergents, water softeners, food additives (sequestrant and emulsifier), and textile processing; [HSDB]
Comments
It changes to sodium trimetaphosphate above 505 deg C and to sodium hexametaphosphate above 607 deg C; [Merck Index] Intraperitoneal LD50 (mouse) = 830 mg/kg; Acute tubular necrosis is adverse effect in IP lethal dose studies; [ChemIDplus] See "Sodium tetrametaphosphate."
Biomedical References
Search PubMed

Diseases, Processes, and Activities Linked to This Agent

Processes

Industrial Processes with risk of exposure: