Agent Name

Sodium phosphate, tribasic

CAS Number

7601-54-9

Formula

H3-O4-P.3Na

Major Category

Other Classes

Synonyms

Antisal 4; Dri-Tri; Emulsiphos 440/660; Nutrifos STP; Oakite; Phosphoric acid trisodium salt; Sodium orthophosphate; Sodium orthophosphate, tertiary; Sodium orthophosphate, tribasic; Sodium phosphate; Sodium phosphate (Na3PO4); Sodium phosphate (VAN); Sodium phosphate, anhydrous; Sodium phosphate, tribasic; Sodium tertiary phosphate; TSP; Tertiary sodium phosphate; Tribasic sodium orthophosphate; Tribasic sodium phosphate; Trinatriumphosphat [German]; Trisodium orthophosphate; Trisodium phosphate; Tromete; [ChemIDplus] NA9148

Category

Salts, Basic

Description

Odorless, water soluble, colorless to white crystals; [CAMEO]

Sources/Uses

Used in soaps and detergents; Used in paper and leather manufacturing; [CHEMINFO] Used in scouring powders, photographic developers, water softeners, boiler scale removers, and food additives; [HSDB]

Comments

Corrosive to skin and eyes after contact and to stomach after ingestion; A respiratory tract irritant; [CAMEO] Solution is a strong base. Inhalation of dust may induce pneumonitis; [ICSC]

Exposure Assessment
Explanatory Notes

Melting point = 170 deg F; [CAMEO]

Adverse Effects
Toxic Pneumonitis

Yes

Dermatotoxin

Skin Burns

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: