Ammonium Bifluoride 98% Pure
Ammonium hydrogen difluoride, Etching powder
Product Code. |
00186 |
Grade |
Extrapure |
Purity |
98% |
CAS No. |
1341-49-7 |
Molecular Formula |
NH4F.HF |
Molecular Weight |
57.07 |
H.S.Code |
2826.19900 |
Shelf Life |
60 Months |
Physical Properties
| Physical state at 20 °C |
Solid |
Colour |
White crystalline |
Odour |
Odorless |
| pH value |
3.5 (5% Solution) |
Melting point/ Freezing point [°C] |
125 °C |
Boiling point [°C] |
240°C |
| Density [g/cm3] |
1.5 |
Solubility in water [% weight] |
41.5g/l00 g Water @ 250C |
Packaging
Specification
| Appearance | White crystalline hygroscopic powder |
| Assay (acidimetric) | Min 98.0% |
| Residue on ignition | Max 0.05% |
| Chloride (Cl) | Max 0.005% |
| Silica (SiO2) | Max 0.5% |
| Sulphate (SO4) | Max 0.05% |
| Iron (Fe) | Max 0.005% |
| Lead (Pb) | Max 0.01% |
Safety Information and Hazard Symbols
Symbol: GHS05, GHS06
Signal Word: Danger
UN No.: 1727
IMCO Class No.: 8
Packing Group: II
Hazardous Statement: H301-H314
Precaution Statement: P280-P301 + P310-P305 + P351 + P338-P310