Diammonium phosphate (DAP) 21 53 0
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- Supplier: Sichuan Shucan Chemical Co. Ltd.
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DIAMMONIUM PHOSPHATE (Tech Grade)
(CAS No.: 7783-28-0)
Executive Standard: HG/T4132-2010
Chemical Formula: (NH4)2HPO4
Molecular Weight: 132.0
[Physical properties] White or colorless crystals. It is soluble in water easily. The density is1.619, and melting point is155°C; insoluble in ethanol.
[Quality specification]
Items | Standard |
Main contents (as (NH4)2HPO4 dry basis) %≥ | 99.0 |
Phosphorus pentoxide (as P2O5) %≥ | 53.0 |
Nitrogen (as N) %≥ | 20.8 |
PH of 1% water solution | 7.6-8.2 |
Moisture %≤ | 0.5 |
Heavy metals (as Pb) %≤ | 0.005 |
Arsenic (as As) %≤ | 0.005 |
Fluoride (as F) %≤ | 0.2 |
Water insoluble %≤ | 0.10 |
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