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UREA PHOSPHATE
(CAS No.: 4861-19-2)
Executive Standard: GB/T27805-2011
Chemical Formula: H3PO4·CO(NH2)2
Molecular Weight: 158.0
[Physical properties]White crystal, easily soluble in water, but not in organic solution; melting point at 117.3℃, its water solution is strongly acidic, PH value of 1% solution is 1.89, less stability and liable to reaction when heated.
[Quality specification]
Items | Standard |
Main contents (as H3PO4·CO(NH2)2) %≥ | 98.0 |
Phosphorus pentoxide (as P2O5) %≥ | 44.0 |
Nitrogen (as N) %≥ | 17.0 |
PH of 1% water solution | 1.6-2.4 |
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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