Diammonium hydrogen phosphate

Summary:White granular crystal, relative density 1.619, melting point 155 °C, soluble in water, insoluble in alcohol, 1% aqueous solution PH value of 8.0, gradually lose ammonia in the air to generate ammonium dihydrogen phosphate.

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Technical Specifications:

Chemical formula: (NH4)2HPO4

Molecular weight: 132.0

Executive standard: HG/T4132-2010

Attribute:

White granular crystal, relative density 1.619, melting point 155 °C, soluble in water, insoluble in alcohol, 1% aqueous solution PH value of 8.0, gradually lose ammonia in the air to generate ammonium dihydrogen phosphate.

Use:

Mainly used in wood, paper, fabric as fireproof agent, also used as fireproof coating additives, but also used in printing plate making and pharmaceutical manufacturing. Used as starter culture, nutrient and so on in the food industry. It is used as chlorine-free N, P binary compound fertilizer in agriculture, and its total nutrient (N+P2O5) is 74%, which is a high-quality basic raw material for the preparation of N, P and K ternary compound fertilizer.

Wrap:

Inner plastic and external weaving, net weight of 25, 50, 1000Kg per bag, stored in a ventilated and dry place.

Technical parameters:

ordinal number

indicator name

food grade

1

main content [in terms of (NH4)2HPO4)%≥ 

99.0

2

phosphorus pentoxide (in terms of P2O5)%≥ 

53.0

3

nitrogen (in N) %≥ 

20.8

4

pH (1% aqueous solution). 

7.6-8.2

5

moisture %≤ 

0.2

6

heavy metals (in Pb)%≤ 

0.001

7

Arsenic (in As) %≤ 

0.0003

8

fluoride (in F)%≤ 

0.001

9

water insoluble matter %≤ 

0.10

keyword: Diammonium hydrogen phosphate

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