Product Information CAS number 333-20-0 EC index number 615-004-00-3 EC number 206-370-1 Grade ACS,ISO,Reag. Ph Eur Hill Formula CKNS Chemical formula KSCN Molar Mass 97.18 g/mol HS Code 2842 90 80 Structure formula Image Applications Application Potassium thiocyanate for analysis EMSURE® ACS,ISO,Reag. Ph Eur. CAS No. 333-20-0, EC Number 206-370-1. Physicochemical Information Boiling point >400 °C (1013 hPa) Not applicable,(decomposition) Density 1.91 g/cm3 (20 °C) Melting Point 177 °C pH value 5.3 - 8.5 (50 g/l, H₂O, 20 °C) Vapor pressure <0.001 hPa (20 °C) Bulk density 750 - 1000 kg/m3 Solubility >1000 g/l Toxicological Information LD 50 oral LD50 Rat 854 mg/kg Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H302 + H312 + H332: Harmful if swallowed, in contact with skin or if inhaled H412: Harmful to aquatic life with long lasting effects. EUH032: Contact with acids liberates very toxic gas. Precautionary Statement(s) P273: Avoid release to the environment. P302 + P352: IF ON SKIN: Wash with plenty of soap and water. Storage class 10 - 13 Other liquids and solids WGK WGK 1 slightly water endangering Disposal 3 Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C. Safety Information Hazard Symbols Harmful Categories of danger harmful, dangerous for the environment R Phrase R 20/21/22-32-52/53 Harmful by inhalation, in contact with skin and if swallowed.Contact with acids liberates very toxic gas.Harmful to aquatic organisms, may cause long-term adverse effects in the aquatic environment. S Phrase S 13-36/37-46-61 Keep away from food, drink and animal feedingstuffs.Wear suitable protective clothing and gloves.If swallowed, seek medical advice immediately and show this container or label.Avoid release to the environment. Refer to special instructions/ Safety data sheets. Storage and Shipping Information Storage Store at +5°C to +30°C. Specifications Assay (argentometric) ≥ 99.0 % Insoluble matter ≤ 0.003 % pH-value (5 %; water, 25 °C) 5.3 - 8.5 Chloride (Cl) ≤ 0.005 % Sulphate (SO₄) ≤ 0.002 % Sulphide (S) ≤ 0.001 % Heavy metals (as Pb) ≤ 0.0005 % Cu (Copper) ≤ 0.0002 % Fe (Iron) ≤ 0.0001 % Na (Sodium) ≤ 0.005 % NH₄ (Ammonium) ≤ 0.002 % Pb (Lead) ≤ 0.0002 % Iodine consuming substances ≤ 0.025 % Corresponds to ACS,ISO,Reag. Ph Eur
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