Description Catalogue Number 106014 Synonyms 2-Butanone, Methyl ethyl ketone, MEK Description Ethyl methyl ketone Overview EMPLURA® is our low-cost alternative to high-purity qualities. With EMPLURA® we offer a range of solvents for a plurality of basic applications in non-regulated industries and for less demanding applications, preparative laboratory work and cleaning purposes. EMPLURA®solvents provide adequate specifications with the most important parameters. Product Information CAS number 78-93-3 EC index number 606-002-00-3 EC number 201-159-0 Hill Formula C₄H₈O Chemical formula C₂H₅COCH₃ Molar Mass 72.11 g/mol HS Code 2914 12 00 Structure formula Image Applications Application Ethyl methyl ketone (2-butanone) EMPLURA®. CAS 78-93-3, EC Number 201-159-0, chemical formula C₂H₅COCH₃. Physicochemical Information Boiling point 79.6 °C (1013 hPa) Density 0.805 g/cm3 (20 °C) Explosion limit 1.8 - 11.5 %(V) Flash point -4 °C Ignition temperature 514 °C Melting Point -86 °C Vapor pressure 105 hPa (20 °C) Solubility 292 g/l Toxicological Information LD 50 oral LD50 Rat 3400 mg/kg LD 50 dermal LD50 Rabbit > 8000 mg/kg Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H225: Highly flammable liquid and vapour. H319: Causes serious eye irritation. H336: May cause drowsiness or dizziness. EUH066: Repeated exposure may cause skin dryness or cracking. Precautionary Statement(s) P210: Keep away from heat/sparks/open flames/hot surfaces. No smoking. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. Storage class 3 Flammable liquids WGK WGK 1 slightly water endangering Disposal 1 Strongly contaminated halogen-free organic solvents: container A. Safety Information Hazard Symbols Irritant Flammable Categories of danger highly flammable, irritant R Phrase R 11-36-66-67 Highly flammable.Irritating to eyes.Repeated exposure may cause skin dryness or cracking.Vapours may cause drowsiness and dizziness. S Phrase S 9-16 Keep container in a well-ventilated place.Keep away from sources of ignition - No smoking. Storage and Shipping Information Storage Store at +5°C to +30°C. Transport Information Declaration (railroad and road) ADR, RID UN 1193 , 3, II Declaration (transport by air) IATA-DGR UN 1193 , 3, II Declaration (transport by sea) IMDG-Code UN 1193 , 3, II Specifications Purity (GC) ≥ 99.0 % Identity (IR) conforms Free acid (as CH₃COOH) ≤ 0.002 % Density (d 20 °C/ 4 °C) 0.804 - 0.805 Water ≤ 0.1 %