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Ammonium dihydrogen phosphate

CAS number : 7722-76-1

Molecular weight :

Molecular formula/chemical symbol :NH4H2PO4

Description :
 

White crystalline powder. Stable in the air. 1gdissolved in 2.5ml water. Slightly soluble in ethanol, insoluble in acetone. The acidic aqueous solution. The relative density of 1.80. Melting point190 . Refractive index is 1.525.

 

 

Keywords: Phosphate



USES :

Buffer and media preparation. Paper, wood, fiberboard, fire retardant. Fertilizer. The bread-improving agent. Food additive. This product should be kept under seal.

Report :

Quality standards HG  3-1064-84

Item

Analytical grade

Chemically pure

Content of not less than

99.0

98.5

Aqueous reaction

Qualified

Qualified

Max impurities,%:

Clarity Test

Qualified

Qualified

Water insoluble matter

0.005

0.01

Chloride (Cl)

0.0005

0.001

Nitrate (as NO3)

0.001

0.002

Sulfur compounds (SO4)

0.005

0.01

Alkali metals (as phosphate)

0.2

0.3

Fe

0.001

0.003

As

0.0005

0.002

Heavy metals (as Pb)

0.0005

0.001