Diammonium hydrogen phosphite
White crystals, relative density 1.619, soluble in water; heated to 155℃ decomposition. It is mainly used as a fire retardant for wood and paper, as a fireproof additive, and also for printing plate making and pharmaceutical manufacturing. Used as a starter, nutrient, etc. in the food industry. It is used as agricultural fertilizer (composite fertilizer) in agriculture.
Molecular formula: (NH42HPO3.H2O
Molecular weight: 134
Structured:
CAS NO.: [51503-61-8]
PSA: 80.76
Quality metrics:
| Item | Index |
| Appearance | White crystals |
| Assay(％) ≥ | 98.0 |
| Chloride(％) ≤ | 0.005 |
| Heavy metal(Pb)％ ≤ | 0.001 |
| Fe(mg/kg)≤ | 0.002 |
| Water insoluble matter(%) ≤ | 0.01 |
Production capacity: 2000 tons/year
Package: 25, 500, 1000 kg plastic bags, net weight 25, 500, 1000 kg.
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