Potassium chloride
SIGALD/60130 - puriss. p.a., ≥99.5% (AT)
CAS Number: 7447-40-7
Empirical Formula (Hill Notation): KCl
Molecular Weight: 74.55
EC Number: 231-211-8
MDL Number: MFCD00011360
Linear Formula: KCl
Product Type: Chemical
| anion traces | bromide (Br-): ≤700 mg/kg |
| iodide (I-): ≤20 mg/kg | |
| phosphate (PO43-): ≤5 mg/kg | |
| sulfate (SO42-): ≤30 mg/kg | |
| assay | ≥99.5% (AT) |
| cation traces | Ca: ≤50 mg/kg |
| Cd: ≤5 mg/kg | |
| Co: ≤5 mg/kg | |
| Cr: ≤5 mg/kg | |
| Cu: ≤5 mg/kg | |
| Fe: ≤2 mg/kg | |
| Mg: ≤10 mg/kg | |
| Mn: ≤5 mg/kg | |
| Na: ≤200 mg/kg | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Zn: ≤5 mg/kg | |
| density | 1.98 g/mL at 25 °C (lit.) |
| form | powder or crystals |
| grade | puriss. p.a. |
| impurities | ≤0.001% total nitrogen (N) |
| InChI | 1S/ClH.K/h1H;/q;+1/p-1 |
| InChI key | WCUXLLCKKVVCTQ-UHFFFAOYSA |
| mp | 770 °C (lit.) |
| pH | 5.5-8.0 (20 °C, 50 mg/mL in H2O) |
| Quality Level | 200  |
| SMILES string | [Cl-].[K+] |
| Application: | May be used for the preparation of phosphate buffered saline, and for the extraction and solubilization of proteins. |
| Application: | Potassium chloride may be used in the preparation of fertilizer, potassium hydroxide, potassium carbonate and other potassium salts. It may be used in the calorimetric determination of enthalpy and heat capacity values during the deprotonation (loss of proton H+) of buffers. From these values temperature dependence of the pH of these buffers was calculated. |
| General description: | Potassium chloride, an alkali metal halide, is a colorless crystalline salt. Its solubility in water is directly proportional to increase in temperature. It can be prepared from potassium hydroxide, via neutralization reaction with HCl. Calorimetric estimation of the enthalpy of solution of potassium chloride in water has been described. |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 1 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| Purity | ≥99.5% (AT) |
| mp | 770 °C (lit.) |
| Density | 1.98 g/mL at 25 °C (lit.) |
| UNSPSC | 12352302 |