Agent Name

Pentasodium tripolyphosphate

CAS Number

7758-29-4

Formula

O10-P3.5Na

Major Category

Metals

Synonyms

Armofos; Empiphos STP-D; Natriumtripolyphosphat [German]; Pentasodium triphosphate; Poly; Polygon; Rhodiaphos LV; S 400; STPP; Sodium phosphate (Na5P3O10); Sodium phosphate, tribasic; Sodium triphosphate; Sodium triphosphate (Na5P3O10); Sodium tripolyphosphate; Sodium tripolyphosphate (Na5P3O10); Sodium tripolyphosphate, anhydrous; Thermphos; Thermphos L 50; Thermphos N; Thermphos SPR; Triphosphoric acid, pentasodium salt; Tripoly; Tripolyphosphate; [ChemIDplus]

Category

Phosphates, Metallic Salts

Description

Slightly hygroscopic solid; [Merck Index] White granules; [MSDSonline]

Sources/Uses

Used in water softening, heavy-duty fabric washing, automatic dish washing, drilling fluid cleaning, and liquid cattle feed supplements; Also used as a peptizing, emulsifying, and dispersing agent; a preservative, sequestrant, and texture-modifier in foods; a sealant for leaking farm ponds; and a calcium and magnesium chelating agent; [HSDB] Used in paper pulping, paper coatings, clay and textile processing, and ore flotation; Also used as a hydrogen peroxide solution stabilizer and to make rubber and paint; [CHEMINFO]

Comments

A moderate skin and mucous membrane irritant; [Merck Index] Emergency treatment: Irritants; [HSDB] Aerosol is a mild skin, eye, and respiratory tract irritant; [ICSC] A skin, eye, and respiratory tract irritant; [CAMEO] May cause eye, nose, and throat irritation; Effects in high-dose ingestion animal studies include kidney damage; [CHEMINFO] An irritant; [MSDSonline]

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