Description

Specification

Potassium Chloride (Product Code: 1000632511) from Merck is a high-purity reagent grade compound designed for analytical use, meeting the stringent quality standards of EMSURE®, ACS, and Ph Eur. This versatile chemical is suitable for a wide range of laboratory and industrial applications, including use as a reference material or in the preparation of buffers and solutions. The product is also compatible with solvents such as THF (tetrahydrofuran), tetramethylene oxide, oxolane, and butylene oxide, offering flexibility in complex analytical procedures. Backed by Merck’s commitment to quality and consistency, this reagent is available in stock for immediate use in your laboratory workflows.
Description Catalogue Number 104935 Product Information CAS number 7447-40-7 EC number 231-211-8 Grade Ph Eur,BP,JP,USP,FCC,E 508 Hill Formula ClK Chemical formula KCl Molar Mass 74.56 g/mol HS Code 3105 10 00 Quality Level MQ500 Physicochemical Information Boiling point 1413 °C (1013 hPa) Density 1.98 g/cm3 (20.0 °C) Melting Point 770 °C pH value 5.5 – 8.5 (50.0 g/l, H₂O, 20.0 °C) Bulk density 1000 kg/m3 Solubility 347 g/l Toxicological Information LD 50 oral LD50 Rat 2600 mg/kg Safety Information according to GHS RTECS TS8050000 Storage class 10 – 13 Other liquids and solids WGK WGK 1 slightly hazardous to water Disposal 14 Inorganic salts: Container I. Neutral solutions of the these salts: Container D. Before placing in Container D, check the pH with pH-Universal indicator strips (Item No. 109535). Storage and Shipping Information Storage Store at +15°C to +25°C. Transport Information Declaration (railroad and road) ADR, RID Kein Gefahrgut Declaration (transport by air) IATA-DGR No Dangerous Good Declaration (transport by sea) IMDG-Code No Dangerous Good Specifications Assay (argentometric; calculated on dried substance) 99.0 – 100.5 % Assay (argentometric; dried substance) 99.0 – 101.0 % Identity passes test Appearance of solution passes test Free acid, free alkali passes test Acidity or alkalinity passes test Bromide (Br) passes test ≤ 0.1 % Bromide, Iodide (Br,I) passes test Iodide (I) passes test ≤ 0.005 % Sulfate (SO₄) ≤ 0.01 % Heavy metals (as Pb) ≤ 0.00050 % Al (Aluminium) ≤ 0.00010 % As (Arsenic) ≤ 0.0001 % Cd (Cadmium) ≤ 0.0001 % Fe (Iron) ≤ 0.001 % Hg (Mercury) ≤ 0.0001 % Na (Sodium) ≤ 0.05 % Na (sodium) passes test Pb (Lead)* ≤ 0.0002 Ca + Mg (calcium and magnesium) passes test Magnesium and alkaline-earth metals (as Ca) ≤ 0.0200 % Residual solvents (ICH Q3C) excluded by production process Loss on drying (130 °C, 3 h) ≤ 0.5 % Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*). Corresponds to Ph Eur, BP, JP, USP, FCC, E 508 Conforms to the purity criteria on food additives according to the current European Commission Regulation