Agent Name

Ammonium phosphate, dibasic

CAS Number

7783-28-0

Formula

H9-N2-O4-P

Major Category

Nitrogen Compounds

Synonyms

Phosphoric acid, diammonium salt; Secondary ammonium phosphate; Akoustan A; Ammonium monohydrogen orthophosphate; Ammonium orthophosphate dibasic; Ammonium phosphate; Ammonium phosphate ((NH4)2(HPO4)); Ammonium phosphate, secondary; Coaltrol LPA 445; Diammonium acid phosphate; Diammonium hydrogen orthophosphate; Diammonium hydrogen phosphate; Diammonium monohydrogen phosphate; Diammonium orthophosphate; Diammonium phosphate; Dibasic ammonium phosphate; Fyrex; Hydrogen diammonium phosphate; K2 (phosphate); Pelor; Phos-Chek 202A; Phos-Chek 259; [ChemIDplus]

Category

Ammonium Compounds

Description

Odorless white solid; [ICSC] Fertilizer grade is greenish to grey to brown solid; [CHEMINFO] Water soluble; [MSDSonline]

Sources/Uses

Used in fireproofing (textiles, paper, wood, and vegetable fibers), impregnating lamp wicks; preventing afterglow in matches, soldering, purifying sugar, inhibiting corrosion, and fertilizing; [Merck Index] Used as a food additive and livestock supplement; [CHEMINFO]

Comments

An eye irritant; [ICSC] Ammonia vapors may accumulate in a confined space and cause pulmonary edema; [CAMEO] Caused contact dermatitis in surgical personnel wearing gowns containing this flame retardant; [Kanerva, p. 1778]

Adverse Effects
Skin Sensitizer

Yes

Toxic Pneumonitis

Yes

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