disodium hydrogen phosphate
Chemical formula: Na2HPO4.12H2O
Molecular weight: 358
Standard executed: GB6008-85
Throughput: 10000t/a
Properties:White or colorless crystalline free flowing solid, efflorescent in air, easily soluble in water, but insoluble in alcohol, its water solution is slightly alkaline, relative density at 1.63, melting point at 34.6℃
Applications:Used as a fire-prevention agent for fabric, timber, and paper, also as water softening agent for boiler, food additive, buffering agent, solder, tanning agent, etc.
Packaging:Plastic-woven sack, net weight 25kg, 50kg or 1000kg. Store at a ventilated, dry place.
Technical Specifications
No
Specifications
Na2HPO4 Na2HPO4.12H2O
Industrial
Food
Industrial
Food
1
Main contents%≥
98 98 97.0
98.0
2
PH of 1% solution
8.5-10.0 8.5-10.0 9.0-9.4
9.0-9.4
3
Chloride, as cl% ≤
0.05
0.014
4
Sulfate, as SO4%≤
0.7
0.25
5
Fluoride, as F%≤
0.001 0.05
0.005
6
Heavy metals, as Pb%≤
0.0003
0.001
7
Arsenic, as As%≤
0.005
0.0003
8
Water insoluble%≤
0.10 0.10 0.10
0.10
|
|
Inquiry Basket (0)
5th Year
sodium tripolyphosphate（STPP）
