Complaint
Ammonium bromide, NH4Br, is the ammonium salt of hydrobromic acid. The chemical crystallizes in colorless prisms, possessing a saline taste; it sublimes on heating and is easily soluble in water. On exposure to air it gradually assumes a yellow color because of the oxidation of traces of bromide (Br−) to bromine (Br2).
| Properties | |
|---|---|
Chemical formula | NH4Br |
| Molar mass | 97.94 g/mol |
| Appearance | white powder, hygroscopic |
| Density | 2.429 g/cm3 |
| Melting point | 235 °C (455 °F; 508 K) |
| Boiling point | 452 °C (846 °F; 725 K) |
Solubility in water | 60.6 g/100 mL (0 °C) 78.3 g/100 mL (25 °C) 145 g/100 mL (100 °C) |
Magnetic susceptibility (χ) | −47.0·10−6 cm3/mol |
Refractive index (nD) | 1.712 |
| Parameter | Specifications | Test Result |
| Appearance | White Crystallization | White Crystallization |
| Main Content | ≥99.00% | 99.23% |
| PH-5%Solution(25oC)) | 4.5-6.0 | 5.32 |
| Chloride(Cl-) | ≤0.5% | 0.21% |
| Sulphate(SO42-) | ≤0.01% | ≤0.01% |
| Water | ≤0.5% | 0.26% |
| As | ≤0.0004% | 0.0003 |
| Pb | ≤0.0005% | 0.0003 |
| Test Result | QUALIFIED | |
