Ammonium hydrogen difluoride - 09835
Code: 09835
Ammonium hydrogen difluoride
Puriss. p.a., ≥98.5% (F) Ammonium bifluoride; Etching powder ≥98.5%
CAS Number: 1341-49-7 Linear Formula: NH4HF2 EC Number: 215-676-4 MDL Number: MFCD00012018
| Property |
Value |
| Identity (IR) |
complying |
| Assay of NH4HF2 |
min. 98.5 % |
| Silver (Ag) |
max. 5 ppm |
| Aluminium (Al) |
max. 5 ppm |
| Barium (Ba) |
max. 5 ppm |
| Bismuth (Bi) |
max. 5 ppm |
| Calcium (Ca) |
max. 10 ppm |
| Cadmium (Cd) |
max. 5 ppm |
| Cobalt (Co) |
max. 5 ppm |
| Chromium (Cr) |
max. 50 ppm |
| Copper (Cu) |
max. 5 ppm |
| Iron (Fe) |
max. 100 ppm |
| Potassium (K) |
max. 50 ppm |
| Lithium (Li) |
max. 5 ppm |
| Magnesium (Mg) |
max. 5 ppm |
| Manganese (Mn) |
max. 5 ppm |
| Molybdenum (Mo) |
max. 5 ppm |
| Sodium (Na) |
max. 50 ppm |
| Nickel (Ni) |
max. 100 ppm |
| Lead (Pb) |
max. 5 ppm |
| Strontium (Sr) |
max. 5 ppm |
| Thallium (Tl) |
max. 5 ppm |
| Zinc (Zn) |
max. 5 ppm |
| Total S (as SO4) |
max. 100 ppm |
| Silicon (as NH4SiF6) |
max. 500 ppm |
| Chloride (Cl) |
max. 50 ppm |
| Sulfite (SO3) |
max. 50 ppm |
| Property |
Value |
| Freezing point |
126 °C |
| Density |
1.500 g/cm3 |
