Diammonium Phosphate

Molecular formula: (NH4)2HPO4
Molecular weight: 132
CAS No.: 7783-28-0
EINECS No.: 231-987-8
Model No.: SCHNG 104
Purity: 98% Food Grade&Tech Grade
Di Ammonium Phosphate(DAP) is white crystallized granular or powder, relative density at 1.619gcm3, melting point at 155degree , easily dissolved in water, insoluble in alcohol, PH value is 8.0 in 1% solution.
Specification
Item Food Grade
Main Content((NH4)2HPO4) 98%min
Phosphorus pentoxide(P2O5) 53%min
Nitrogen(N) 20.8%max
PH value(1% solution) 7.8-8.2
Moisture 0.2%max
Water insoluble 0.1%max
Fluoride(F) 0.005%max
Heavy metal (Pb) 0.001%max
Arsenic (As) 0.0003%max
Application
1.Used as food leavening agent, flour modifier, yeast food additives, fermentation and buffer in food industry.
2.In Industry lines, it is used to soak the wood and fabric in order to increase their durability. It is important material in dry powder fire extinguishing agent and fluorescent lamp. Also used in printing and the producing of electronic tubes, ceramic, enamel etc.It always is used in biological treatment of waste-water.
3.It is an important fire retardant for insulation materials using in rocket motors.
4.Its fertilizer grade is mainly used as high purity N&P compound fertilizer.
Adding Limited
Under GB2760-96: below 1gKG for meat products.
Under America BATF(27CFR 240．1051，2000): 0.17% as yeast food in line; below 0.8% in sparkling products.