China (Mainland)
Quick Details
- Classification: Chemical Auxiliary Agent
- CAS No.: 1333-83-1;51273-71-3
- Other Names: sodium hydrogenfluoride
- MF: F2HNa
- EINECS No.: 215-608-3
- Place of Origin: China (Mainland)
- Type: Other
- Usage: Textile Auxiliary Agents
Molecular formula: NaHF
Molecular weight: 61.99
Physical Properties:white cyrstal; relative density is 2.08; insoluble in ethylalcohol
Uses: preservative, fluxing agent, etching glass, textile treating, leather insect prevention, metal solder
Storage and transportation: In dry place to avoid moisture and please cover in transportation to avoid moisture and rain
Packing:plastic woven bag with inner double layer plastic film; net weight is 25kg
Tehnical requirements:
|
Item |
Index |
|
|
|
top grade |
1st grade |
|
appearance |
white crystal |
|
|
content(NaHF2)≥ |
99.0 |
98.0 |
|
water insoluble≤ |
0.2 |
0.5 |
|
free acid(HF)≤ |
0.2 |
0.2 |
|
chloride(Cl)≤ |
0.1 |
0.1 |
|
sulfate(SO4)≤ |
0.1 |
0.1 |
|
silicate(SiO2)≤ |
0.3 |
0.5 |
|
moisture(H2O)≤ |
0.2 |
0.5 |
|
particle size(325 mesh)≤ |
3 |
3 |