Ammonium chloride
SIGALD/31107 - puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., ≥99.5%
Synonym: Salmiac
CAS Number: 12125-02-9
Empirical Formula (Hill Notation): H4ClN
Molecular Weight: 53.49
EC Number: 235-186-4
MDL Number: MFCD00011420
Linear Formula: NH4Cl
Product Type: Chemical
| agency | reag. ISO |
| reag. Ph. Eur. | |
| USP/NF | |
| anion traces | nitrate (NO3-): ≤5 mg/kg |
| phosphate (PO43-): ≤2 mg/kg | |
| sulfate (SO42-): ≤20 mg/kg | |
| assay | ≥99.5% |
| cation traces | As: ≤0.5 mg/kg |
| Ca: ≤5 mg/kg | |
| Cu: ≤2 mg/kg | |
| Fe: ≤2 mg/kg | |
| heavy metals: ≤5 ppm (by ICP-OES) | |
| K: ≤50 mg/kg | |
| Mg: ≤5 mg/kg | |
| Na: ≤50 mg/kg | |
| Ni: ≤1 mg/kg | |
| Pb: ≤1 mg/kg | |
| Zn: ≤2 mg/kg | |
| form | crystalline powder |
| grade | ACS reagent |
| puriss. p.a. | |
| InChI | 1S/ClH.H3N/h1H;1H3 |
| InChI key | NLXLAEXVIDQMFP-UHFFFAOYSA |
| mp | 340 °C (subl.) (lit.) |
| pH | 4.5-5.5 (20 °C, 5%) |
| Quality Level | 200  |
| SMILES string | N.Cl |
| vapor density | 1.9 (vs air) |
| vapor pressure | 1 mmHg ( 160.4 °C) |
| Application: | Ammonium chloride can be used as a catalyst: • To synthesize 3,4-dihydropyrimidin-2-(1H)-ones via solvent-free Biginelli-condensation reaction. • For the aldol condensation of carbonyl compounds. • In the thia-Michael addition reaction of thiols to different α-enones. It can also be used as:• A promoter in the enantioselective hydrogenation of an unprotected β-enamine amides. • A pH-adjuster in the preparation of waterborne glucose silicone resin. |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302 - H319 |
| Precautionary statements | P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P337 + P313 |
| Hazard Codes | Xn |
| Risk Statements | 22-36 |
| Safety Statements | 22 |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.5% |
| mp | 340 °C (subl.) (lit.) |
| UNSPSC | 12352300 |