Agent Name

Sodium trimetaphosphate

CAS Number

7785-84-4

Formula

O9-P3.3Na

Major Category

Metals

Synonyms

1,3,5,2,4,6-Trioxatriphosphorinane, 2,4,6-trihydroxy-, trisodium salt; Cyclic sodium trimetaphosphate; Cyclisches trinatriummetaphosphat [German]; Metaphosphoric acid (H3P3O9), trisodium salt; Metaphosphoric acid, trisodium salt; Sodium metaphosphate (Na3(P3O9)); Sodium phosphate ((NaPO3)3); Sodium phosphate tribasic; Trimetaphosphoric acid (H3P3O9), trisodium salt; Trisodium metaphosphate; Trisodium trimetaphosphate; [ChemIDplus]

Category

Phosphates, Metallic Salts

Description

Hexahydrate: Efflorescent solid; [Merck Index] White odorless powder; [MSDSonline]

Sources/Uses

Used in toothpastes, synthetic dairy products, and detergents; [HSDB]

Comments

Emergency treatment: "Inorganic phosphates"; Inorganic phosphates can cause diarrhea, hyperphosphatemia, and hypocalcemia after ingestion; An adult died after receiving four sodium phosphate enemas within 24 hours; he had electrolyte abnormalities and died from cardiac arrest; [HSDB] Oral LD50 (mouse) = 10300 mg/kg; [RTECS] May cause irritation; [MSDSonline]

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