PX1405

Potassium chloride

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

• Linear Formula: KCl
• CAS Number: 7447-40-7
• Molecular Weight: 74.55
• MDL number: MFCD00011360
• UNSPSC Code: 12352302
• EC Index Number: 231-211-8

Properties

• Agency: meets USP/NF
• Quality Level: 200
• Assay: 99.0-100.5% (silver nitrate titration)
• form: crystals
• impurities: ≤0.005% Insoluble matter
• color: white
• pH: 5.5-8.0 (25 °C, 50 g/L in H₂O)
• bp: 1413 °C/1013 hPa
• mp: 770 °C (lit.)
• density: 1.98 g/mL at 25 °C (lit.)
• anion traces: bromide (Br^-): ≤0.01%; chlorate, nitrate (as NO₃^-): ≤0.003%; iodide (I^-): ≤0.002%; phosphate (PO₄^3-): ≤5 ppm; sulfate (SO₄^2-): ≤0.001%
• cation traces: Ba: ≤0.001%, passes test; Ca: ≤0.002%; Fe: ≤3 ppm; Mg: ≤0.001%; Na: ≤0.005%; heavy metals (as Pb): ≤5 ppm
• shipped in: ambient
• storage temp.: room temp
• 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.

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Analysis Note

Assay (argentometric)99.0-100.5%Barium (Ba)Passes test (Limit about 0.001%)Bromide (Br)0.01% maxCalcium (Ca)0.002% maxChlorate and nitrate (as NO3)0.003% maxColorWhiteFormCrystalsHeavy metals (as Pb)5ppm maxInsoluble matter0.005% maxIodide (I)0.002% maxIron (Fe)3ppm maxMagnesium (Mg)0.001% maxPhosphate (PO4)5ppm maxSodium (Na)0.005% maxSulfate (SO4)0.001% maxpH of a 5% solution at 25°C5.4-8.6

Safety Information

• Storage Class Code: 13 - Non Combustible Solids
• WGK: WGK 1