تترا هیدرو فوران 109731 مرک

تترا هیدرو فوران 109731 مرک Tetrahydrofuran 109731 merck Tetrahydrofuran for analysis EMSURE(r) ACS,Reag. Description Catalogue Number 109731 Synonyms THF, Tetramethylene oxide, Oxolane, Butylene oxide Description Tetrahydrofuran Overview EMSURE(r) grade solvents are suitable for a broad spectrum of classical lab applications, and are frequently used in regulated and highly demanding lab applications. EMSURE(r) provides worldwide best and most extensive product specifications. We declare our EMSURE(r) range to be in compliance with the ACS, with the reagent part of the European Pharmacopoeia (Reag. Ph Eur) and also with the ISO standards. Product Information CAS number 109-99-9 EC index number 603-025-00-0 EC number 203-726-8 Grade ACS,Reag. Ph Eur Hill Formula C₄H₈O Chemical formula C₄H₈O Molar Mass 72.11g/mol HS Code 2932 11 00 Structure formula Image Applications Application Tetrahydrofuran for analysis EMSURE(r) ACS,Reag. Ph Eur. CAS 109-99-9, EC Number 203-726-8, chemical formula C₄H₈O. Physicochemical Information Boiling point 65-66C (1013hPa) Density 0.89g/cm3 (20C) Explosion limit 1.5-12.4%(V) Flash point -21.5C Melting Point -108.5C pH value 7-8 (200g/l, H₂O, 20C) Vapor pressure 173hPa (20C) Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H225: Highly flammable liquid and vapour. H302: Harmful if swallowed. H319: Causes serious eye irritation. H335: May cause respiratory irritation. H351: Suspected of causing cancer. EUH019: May form explosive peroxides. Precautionary Statement(s) P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. P240: Ground/bond container and receiving equipment. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P313: IF exposed or concerned: Get medical advice/ attention. P403 + P233: Store in a well-ventilated place. Keep container tightly closed. RTECS LU5950000 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, carcinogenic, irritant R Phrase R 11-19-40-36/37 Highly flammable.May form explosive peroxides.Limited evidence of a carcinogenic effect.Irritating to eyes and respiratory system. S Phrase S 16-29-33 Keep away from sources of ignition - No smoking.Do not empty into drains.Take precautionary measures against static discharges. Storage and Shipping Information Storage Store at +5C to +30C. Transport Information Declaration (railroad and road) ADR, RID UN 2056 , 3, II Declaration (transport by air) IATA-DGR UN 2056 , 3, II Declaration (transport by sea) IMDG-Code UN 2056 , 3, II Specifications Purity (GC) 99.8% Identity (IR) conforms Appearance clear Colour 10Hazen Density (d 20 C/20 C) 0.885 - 0.895 Acidity 0.0003meq/g Alkalinity 0.0002meq/g Peroxides conforms Peroxide (as H₂O₂) 0.005% Al (Aluminium) 0.00005% B (Boron) 0.000002% Ba (Barium) 0.00001% Ca (Calcium) 0.00005% Cd (Cadmium) 0.000005% Co (Cobalt) 0.000002% Cr (Chromium) 0.000002% Cu (Copper) 0.000002% Fe (Iron) 0.00001% Mg (Magnesium) 0.000002% Mn (Manganese) 0.000002% Ni (Nickel) 0.000002% Pb (Lead) 0.00001% Sn (Tin) 0.00001% Zn (Zinc) 0.00001% Evaporation residue 0.0005% Water 0.03% Stabilized with 2,6-Di-tert-butyl-4-methylphenol (BHT).