Fengda Chemicals Corp.

Diammonium Phosphate

Diammonium Phosfate; DAP

Molecular formula：(NH₄)₂HPO₄

Molecular weight：132.0

CAS No.：7783-28-0

Property：White granular crystal, relative density at 1.619, melting point at 155℃, easily soluble in water, insoluble in alcohol, PH value of 1% solution is 8.0.

Usage：As a fire-prevention agent for fabric, timber and paper. For food grade it is mainly used as a fermentation agent, nourishment, and so on. Used as a high effective non-chloride N, P compound fertilizer in agriculture. It contains totally 74% fertilizer elements, used as a basic raw material for N, P and K compound fertilizer.

Packing：Net each in 25/50kg plastic woven bag, lined with PE bag.

Specification：

Item	Tech Grade	Food Grade
Main contents	99.0% Min	99.0% Min
Phosphorus pentoxide	53% Min	53% Min
Nitrogen, as N	20.8% Min	20.8% Min
PH value (1% solution)	7.8-8.2	7.8-8.2
Moisture	0.2% Max	0.2% Max
Heavy metal, as Pb		0.001% Max
Arsenic, as As		0.0003% Max
Fluoride as F		0.005% Max
Water insoluble	0.10% Max	0.10% Max