Ammonium dihydrogen phosphate 7722-76-1


Product Deail


Ammonium dihydrogen phosphate

Another nameMonoammonium phosphate.

【DescriptionWhite crystalline powder, stable in air, slightly soluble in ethanol, insoluble in acetone, acidic in aqueous solution. At room temperature (20℃), the solubility in water is 37.4g, the relative density is 1.80, the melting point is 180℃, and the refractive index is 1.525.

Test items

GR

AR

CP

Other

Assay(NH4H2PO4) /%

≥99.5

≥99.0

≥98.5

Custom

pH(50g/L,25℃)

4.0-4.5

4.0-4.5

4.0-4.5

Clarity of solution 

Passes test

Passes test

Passes test

Water insoluble /%

≤0.005

≤0.005

≤0.01

Chloride(Cl) /%

≤0.000 3

≤0.000 5

≤0.001

Sulfur compounds(as SO42-) /%

≤0.005

≤0.005

≤0.01

Nitrate(NO3-) /%

≤0.000 5

≤0.001

≤0.002

Sodium(Na) /%

≤0.005

≤0.005

≤0.01

Potassium(K) /%

≤0.003

≤0.003

≤0.01

Iron(Fe) /%

≤0.000 5

≤0.001

≤0.003

Arsenic(As) /%

≤0.000 2

≤0.000 2

≤0.002

Heavy metals(as Pb) /%

≤0.000 5

≤0.000 5

≤0.001

Use】Used as analytical reagent; Battery materials; P; Food additives; Fire retardant; Pharmaceutical excipients; Feed additive.