Specifications:
1.Chemical Formula:Na2HPO4.12H2O
2.Molecular Weight:357.96(Na2HPO4.12H2O)
3.Characteristics: white or colorless crystal,shaped asrunning sand,effloresce in air easily,soluble in water easily,insoluble in alcohol,water solution is alkalescenty,decomposed to be sodium pyrophosphate at 250℃ ;Specific weight is 1.52,melting point is 57.4 ℃ .
4.Technical Specifications:
No. |
Specifications |
Industrial Grade |
1 |
Main content (as Na2HPO4.12H2O)% |
≥ 97 |
2 |
PH of 1% water solution |
≤ 8.8-9.2 |
3 |
Heave metals(as Pb) % |
|
4 |
Arsenic(as As) % |
≤ 0.005 |
6 |
Chloride(As Cl) % |
≤ 0.05 |
7
|
Water insoluble |
≤ 0.05 |
8
|
Sulfate,as SO4 % |
≤ 0.7 |
9
|
Fluoride,as F % |
≤0.05 |
10
|
Drying loss: Na2HPO4 |
|
|
Na2HPO4.2H2O % |
|
|
Na2HPO4.12H2O % ≤ |
|
5.Function: used as fire-proof agent for fabric,woods and paper,as water-softening agent for boiler,as dyeing assistant,food additive,acidity buffer,and manufacturing pyrophosphate for glaze,welding agent,baking powder,electroplatiing,tannage etc.
6.Package:Plastic knit bag,as per client's requirement. N.W is 25 kgs/bag or 50 kgs/bag.
7.Storage ways:storage in ventilated and dry place.
8.Lead time:7 working days after receiving the deposit.ship by sea/air etc.
9.Payment terms:discussing with the clients.