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Monoammonium Phosphate   MAP
  
 Alias: Ammonium dihydrogen phosphate; industrial MAP;
CAS No. : 7722-76-1
 Molecular formula: NH4H2PO4
 MW: 115.03
 
Character: The melting point is 190 ° C and density is 1.02 g / ml (20 ° C ,storage conditions is
2-8 ° C ). It dissolved in water, and the solubility is 368g / L (20 º C).
 
 Uses: Used as wood, paper, fabric flame retardant, fiber processing and dispersing agent in dye industries. And the agent of fire retardant coating, extinguishing agent of dry powder fire, or fermentation agent and nutritional agent in the food industry. Also used as a highly efficient N & P fertilizer.
 
Quality standard (reference standard) 

specification index
Technical grade Food grade
NH4H2PO4                %≥ 98.0 98.0
P2O5                       %≥ 61.0 61.0
N                %≥ 12.0 12.0
PH(1%solution) 4.4-4.6 4.4-4.6
Water insoluble    %≤ 0.10 0.10
Moisture          %≤ 0.5 0.5
As                %≤ ---- 0.0003
F                  %≤ ---- 0.005
Heavy metal (Pb)    %≤ ---- 0.001