Dichloromethane  

Dichloromethane
Molecular formula: CH2CL2
Molecular weight: 84.93
Properties: colorless transparent volatile liquid, similar to ether odor and sweet Relative Density:. D4201.326Kg / L, Boiling point: 40.4 ℃, melting point: -96.7 ℃, ignition point: 615 ℃ slightly soluble. water, soluble in alcohol, ether, toxic, narcotic stimulation. Dichloromethane and water hydrolysis reaction, commodity Dichloromethane contain stabilizers to prevent hydrolysis. Dichloromethane with high concentrations of oxygen can produce explosive mixture, but not flammable, industrially common toxicity, non-flammable, low Boiling point of one solvent. 
Uses: for incombustible solvent: metallic paint cleaning, mold release agent, metal degreasing agents, cellulose triacetate solvent; footage, aerosols, antibiotics, vitamins production solvent; blowing agents: for plastic fat bubble; for the production of fire-retardant products; to replace F11, F12Uses products; for the synthesis of fine chemical products. 
Packaging, storage, transportation: Dichloromethane with galvanized iron, black iron or tankers sealed packaging, filling volume of 80% of its container, there are special requirements of users can provide nitrogen storage should be placed in a cool, dry place, storeroom. proper ventilation, avoid contact with high concentrations of oxygen or oxide, avoid contact with water to prevent hydrolysis Transportation People's Republic of China shall comply with the relevant roads, railways provides for the transport of dangerous chemicals. 
Health and Safety: Dichloromethane explosion limit in air: 8.1 - 17.2%, below the high concentration of combustible chemicals category, a longer contact time can lead to dizziness, drowsiness, nausea, ringing in the ears or numbness, move to fresh air, symptoms are. fast recovery, without causing lasting damage. splashing into the eyes causing pain and irritation, prolonged contact with the skin can cause dermatitis. 
Quality standard Q/0523 JLH002-2011

Item Index
Top grade First grade Qualified product
Dichloromethane 's mass fractiona/% ≥ 99.95 99.90 99.80
Moisture's mass fraction/% ≤ 0.010 0.020 0.030
Acid (as HCl) 's mass fraction/% ≤ 0.0004 0.0008
Chroma/Hazen (Pt-Co#) ≤ 10
Evaporation residue 's mass fraction/% ≤ 0.0005 0.0010
a. Dichloromethane 's mass fraction contains now additives.


Copyright(C)2018 ,   Copyright Notice