MethylSulfonyl Methane (MSM)

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It is widely used in Pharmaceutical Intermediate. MethylSulfonyl Methane (MSM) Product name: Dimethyl sulfone ; MethylSulfonyl Methane (MSM) Molecular formula: (CH3)2SO2 Molecular weight: 94 Structural formula : Appearance:white crystalline powder Assay NLT 99.9% Use:Nourishment additive Packing: 25kg cardboard drum Normal spec.: 20-40 mesh, 40-80 mesh, 80-100mesh( silica gel can be added upon clients' requests.) Special spec.:Upon clients' requests. Quality index ITEMS STANDARD A ppearance White crystalline Boiling point 238 °C Melting point 108-109 °C Assay(GC) 99.9%min Moisture Contain 0.5%max E.Coli Negative Heavy metals 5ppmmax SALMONELLA NEGATIVE Property Easily soluble in water, ethanol and acetone, slightly soluble in toluene and chloroform, water solubility: 5°C 10g,10°C 16g,30 °C 37g,60°C 120g,95°C 250g; solubility in methanol -10 °C 1g,0°C 3.5g,30 °C 20g,60 °C 34g; its water solution is neutral. Property White needle-like crystal M.P. ( 760mmHg ) 109 B.P. ( 760mmHg ) 238 Density (d4110 ) 1.1702 Specific weight (26 °C) 1.450-1.455 Viscosity (125 °C) 1.140CP( centipoise ) Refractive index (20 °C) 1.4228 Dielectric constant (110 °C) 47.39 MHZ Dipole moment (20 °C) 4.25Debye Vapor tension 112 °C 8.6mmHg 250 °C 769.4mmHg Flash point ( open ) 143 °C Specific heat Liquid 121 °C 0.53cal/g•°C Solid 25 °C 0.31 cal/g •°C Heat of combustion ( 25 °C constant volume ) -429.42 Kcal/mol (-428.29) Heat of formation ( 180 °C) -107.5 Kcal/mol(-108.3) Heat of melting ( 9 °C) 4.374 Kcal/mol Heat of sublimation (25 °C , 76.0mmHg) 18.4 Kcal/mol Hheat of vaporization (25 °C) 15.1 Kcal/mol Application:It is widely used in medi

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