1.Properties: colorless gas under normal temperature and normal pressure; explosion limits: 7-19%; liquid relative density(d04)0.92; steam relative density1.78(air=1); melting point - -97.7 3; boiling point : -24.2; flashing point <-50; spontaneous ignition point: 632℃
2.Molecular formula:CH₃Cl    molecular weight : 50.49
3.CAS No.: 74-87-3
4.Uses: as refrigerant, methylating agent; also used in organic synthesis
5.Quality standard

6.Packaging.Storage: should be preserved in steel cylinder or storage tank after liquefaction
7.security: the formation of explosive mixtures with air, in use, storage and transportation should be well ventilated to avoid exposure day, kept below 40 ℃.