 Reagent Hydrofluoric Acid
Q/DWH003-1999
Molecular Formula: HF
Molecular Weight: 20.01
Properties: colorless transparent liquid with strong pungent odor and severe toxicity, can fast corrode silicon materials such as glass, ceramics, enamel and cement products.
Uses: used as laboratory reagent; to produce semiconductor parts in electronic industry.
Quality Index (GB7373-87)
| Item |
Index(%) |
| Excellent Grade |
AR |
50%AR |
CP |
| Hydrogen Fluoride,≥ |
42 |
40 |
50 |
40 |
| Chloride(Cl) ≤ |
0.0005 |
0.002 |
0.0005 |
0.005 |
| Sulfate(SO4) ≤ |
0.0005 |
0.002 |
0.003 |
0.005 |
| Sulfite(SO3) ≤ |
0.0005 |
0.002 |
0.002 |
0.002 |
| Phosphate(PO4 ) ≤ |
0.0001 |
0.0002 |
0.0005 |
0.0005 |
| Fluorosilicic Acid(H2SiF6) ≤ |
0.005 |
0.04(SiO2) |
0.05 |
0.06(SiO2) |
| Iron(Fe) ≤ |
0.00005 |
0.0001 |
0.0005 |
0.0005 |
| Nickel(Ni) ≤ |
0.00001 |
- |
- |
- |
| Copper(Cu) ≤ |
0.00001 |
- |
- |
- |
| Zinc(Zn) ≤ |
0.00001 |
- |
- |
- |
| Cadmium(Cd) ≤ |
0.00001 |
- |
- |
- |
| Lead(Pd) ≤ |
0.00005 |
- |
- |
- |
| Arsenic(As) ≤ |
- |
- |
- |
- |
| Heavy Metals(as Pb) ≤ |
- |
- |
- |
- |
| Ignition Reside(as Sulfate) ≤ |
0.0005 |
0.005 |
- |
0.01 |
|
