31248

Potassium chloride

puriss. p.a., reag. ISO, reag. Ph. Eur., 99.5-100.5%

• Linear Formula: KCl
• CAS Number: 7447-40-7
• Molecular Weight: 74.55
• EC Number: 231-211-8
• MDL number: MFCD00011360
• PubChem Substance ID: 329753698
• NACRES: NA.21

Properties

• Agency: USP/NF; reag. ISO; reag. Ph. Eur.
• grade: puriss. p.a.
• assay: 99.5-100.5%
• form: crystalline powder
• impurities: acidic or alkalic reac. substances, complies; ≤0.0005% heavy metals (as Pb); ≤0.001% total nitrogen (N); ≤0.003% free acid (as HCl); ≤0.003% free alkali (as KOH); ≤0.005% water insolubles
• loss: ≤0.2% loss on drying, 130 °C
• pH: 5-8 (20 °C, 5%)
• mp: 770 °C (lit.)
• density: 1.98 g/mL at 25 °C (lit.)
• anion traces: bromide (Br^-): ≤100 mg/kg; iodide (I^-): ≤20 mg/kg; phosphate (PO₄^3-): ≤5 mg/kg; sulfate (SO₄^2-): ≤20 mg/kg
• cation traces: Al: ≤1 mg/kg; Ba: ≤10 mg/kg; Ca: ≤10 mg/kg; Fe: ≤2 mg/kg; Mg: ≤5 mg/kg; Na: ≤200 mg/kg
• suitability: corresponds for appearance of solution
• SMILES string: [Cl-].[K+]
• InChI: 1S/ClH.K/h1H;/q;+1/p-1
• InChI key: WCUXLLCKKVVCTQ-UHFFFAOYSA-M

Description

Application

May be used for the preparation of phosphate buffered saline, and for the extraction and solubilization of proteins.

Packaging

This product is also available in glass bottles.

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable