Ammonium chloride
SIGALD/901230 - anhydrous, free-flowing, Redi-Dri™, ACS reagent, ≥99.5%
Synonym: Salmiac; Salmiac
CAS Number: 12125-02-9
Empirical Formula (Hill Notation): H4ClN
Molecular Weight: 53.49
MDL Number: MFCD00011420
Linear Formula: NH4Cl
Product Type: Chemical
The Redi-Dri™ packaging system eliminates the common issue of clumping that is noted with many hygroscopic salts and buffers and provides free-flowing, ready-to- use material at all times.
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 901230-500G
This image depicts SKU: 901230-500G
This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: 901230-2.5KG
This image depicts SKU: 901230-2.5KG
| agency | suitable for SM 4500 - NH3 |
| suitable for SM 5210 | |
| anion traces | phosphate (PO43-): ≤2 ppm |
| sulfate (SO42-): ≤0.002% | |
| assay | ≥99.5% |
| cation traces | Ca: ≤0.001% |
| Fe: ≤2 ppm | |
| heavy metals: ≤5 ppm (by ICP) | |
| Mg: ≤5 ppm | |
| form | powder or crystals |
| grade | ACS reagent |
| anhydrous | |
| ign. residue | ≤0.01% |
| impurities | ≤0.005% insolubles |
| InChI | 1S/ClH.H3N/h1H;1H3 |
| InChI key | NLXLAEXVIDQMFP-UHFFFAOYSA |
| mp | 340 °C (subl.) (lit.) |
| pH | 4.5-5.5 (25 °C, 5%) |
| product line | Redi-Dri™ |
| Quality Level | 100  |
| SMILES string | N.Cl |
| vapor density | 1.9 (vs air) |
| vapor pressure | 1 mmHg ( 160.4 °C) |
| Application: | Ammonium chloride (NH4Cl) has been used as one of the components of red blood cell (RBC) lysis buffer for use in various studies. It may be used as a catalyst in the preparation 3,4-dihydropyrimidin-2-(1H)-ones. Inorganic ammonium ions (NH4+) effectively catalyze the aldol condensation of carbonyl compounds. It serves as a source of nitrogen during the preparation of trimethylamine hydrochloride (TMA·HCl). |
| General description: | Crystals of ammonium chloride (NH4Cl) belong to the cubic crystal system. It can be synthesized by reacting HCl with aqueous ammonia solutions. NH4Cl is formed as a by-product during soda manufactured by Solvay process. |
| Legal Information: | Redi-Dri is a trademark of Sigma-Aldrich Co. LLC |
| Symbol |  GHS07 |
| Signal word | Warning |
| Hazard statements | H302 - H319 |
| Precautionary statements | P264 - P270 - P280 - P301 + P312 - P305 + P351 + P338 - P337 + P313 |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.5% |
| mp | 340 °C (subl.) (lit.) |
| UNSPSC | 12352302 |