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Diammonium Phosphate (DAP)

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category：Industrial application
Appearance: White granular crystal, relative density 1.619, melting point 155℃, easily soluble in water, insoluble in alcohol, PH value of 1% aqueous solution is 8.0, gradually loses ammonia in the air to form ammonium dihydrogen phosphate.
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Diammonium Hydrogen Phosphate (DAP)

Diammonium Phosphate

Chemical formula: (NH4)2HPO4

Molecular weight: 132.0

CAS No.: 7783-28-0

Executive standard: HG/T4132-2010 (industrial grade)

Appearance: White granular crystal, relative density 1.619, melting point 155℃, easily soluble in water, insoluble in alcohol, PH value of 1% aqueous solution is 8.0, gradually loses ammonia in the air to form ammonium dihydrogen phosphate.

Uses: Diammonium hydrogen phosphate is mainly used as a fire retardant for wood, paper and fabric in industry, as an additive for fire retardant coatings, and also for printing plate making and pharmaceutical manufacturing.

Packing: inner plastic outer woven, net weight 25Kg, 50Kg, 1000Kg per bag, stored in a ventilated and dry place.

[Table unit: %]

Serial number  Indicator name    National standard  Internal control index 
1  Main content "in terms of (NH4) 2HPO4"  ≥  95  99 
2  Phosphorus pentoxide (calculated as P2O5)  ≥  51  53 
3  Nitrogen (in N)  ≥  18  21 
4  Arsenic (AS)  ≤  /  0.005 
5  Fluoride (in F)  ≤  0.01  0.001 
6  Heavy metals (in Pb)  ≤  /  0.001 
7  Water insoluble matter  ≤  /  0.008 
8  Moisture  ≤  5  0.1 
9  Sulfate (in terms of SO4)  ≤  /  0.005 
10  Iron (in Fe)  ≤  /  0.005 
11  Lead (in Pb)  ≤  /  0.0004 
12  PH (10g/L solution)    /  7.5-8.2 
13  Chloride (in Cl)  ≤  /  0.001 
Keyword:
diammonium
ammonium
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Dipotassium Hydrogen Phosphate (DKP)
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Monosodium Phosphate (MSP)

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Properties: White crystal or powder, easily soluble in water, insoluble in ethanol, slightly soluble in chloroform.
Feed Additive Potassium Dihydrogen Phosphate (MKP)
Feed Additive Potassium Dihydrogen Phosphate (MKP)
Properties: Colorless transparent crystal, stable in air, soluble in water (22.6g/100ml), insoluble in ethanol, deliquescence. When heated to 400 ℃, it melts into a transparent liquid, and after cooling, it solidifies into an opaque glassy potassium metaphosphate.
Dipotassium Hydrogen Phosphate (DKP)
Dipotassium Hydrogen Phosphate (DKP)
Properties: Appearance is white crystal or amorphous white powder, easily soluble in water, slightly alkaline in aqueous solution, slightly soluble in alcohol, hygroscopic, self-dissolving at high temperature. Anhydrous dipotassium hydrogen phosphate is converted into potassium pyrophosphate when heated to 204°C.
Food Grade Dipotassium Phosphate (DKP)
Food Grade Dipotassium Phosphate (DKP)
Properties: Dipotassium hydrogen phosphate trihydrate is white crystal with water. Anhydrous is white powder. Easily soluble in water, the aqueous solution is slightly alkaline, slightly soluble in alcohol, hygroscopic, and self-dissolving at high temperature. Anhydrous dipotassium hydrogen phosphate is converted into potassium pyrophosphate when heated to 204°C.
Food Grade Potassium Dihydrogen Phosphate (MKP)
Food Grade Potassium Dihydrogen Phosphate (MKP)
Properties: Colorless transparent crystal, stable in air, soluble in water (22.6g/100ml), insoluble in ethanol, deliquescence. When heated to 400 ℃, it melts into a transparent liquid, and after cooling, it solidifies into an opaque glassy potassium metaphosphate.
Food Grade Potassium Pyrophosphate (TKPP)
Food Grade Potassium Pyrophosphate (TKPP)
Properties: White powder or block, the apparent specific gravity is above 0.3, the melting point is 1100 ° C, soluble in water, insoluble in alcohol, the aqueous solution is alkaline. It has high solubility in water (187 grams per 100 grams of water at 25°C), and has a slight deliquescence.
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