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Items
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Standard
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Main content (NH4) 2HPO4
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¡Ý99%
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P2O5
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¡Ý53%
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Nitrogen, as N
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¡Ý20.8%
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Moisture
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¡Ü0.1%
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Heavy metals, as Pb
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¡Ü0.001%
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SO4
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¡Ü 0.5%
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As
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¡Ü0.0003%
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Fluoride
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¡Ü 10 ppm
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Water insoluble
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¡Ü0.10%
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PH (1% water solution)
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7.8-8.2
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Na2O
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¡Ü0.001%
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K2O
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¡Ü0.01%
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Density
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20--40 mesh
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Insoluble matter
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NIL
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Any foreign particle
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NIL
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Industrial use
1.It can be used as a dry powder extinguishing agent, phosphor for fluorescent lamps;
2. Used for printing plate making, vacuum tube, ceramic, enamel and other manufacturing, wastewater biochemical treatment;
3. Used as curing agent of urea-formaldehyde resin adhesive, with 20% aqueous solution, the slowest curing speed.It is also used as additive flame retardant.If a small amount of DAP is added to the natural rubber latex, magnesium ions in the latex can be effectively eliminated without reducing the tensile strength of the natural latex after vulcanization.
Food additives
In the food industry as starter, nutrition agent, etc.
DIAMMONIUM PHOSPHATE
Molecular Formula: (NH4)2HPO4 Molecular Weight: 132.0
Property: White granular crystal, relative density at 1.619, melting point at 155oC, easily soluble in water, insoluble in alcohol, PH value of 1% solution is 8.0.
Specification:
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Item
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Tech Grade
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Food Grade
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Main contents
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99.0% Min.
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99.0% Min.
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Phosphorus pentoxide
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53% Min.
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53% Min.
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Nitrogen, as N
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20.8% Min.
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20.8% Min.
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PH value (1% solution)
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7.8-8.2
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7.8-8.2
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Moisture
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0.2% Max.
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0.2% Max.
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Heavy metal, as Pb
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0.001% Max.
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Arsenic, as As
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0.0003% Max.
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Fluoride as F
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0.005% Max.
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Water insoluble
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0.10% Max.
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0.10% Max.
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