Khoom npe:Dichloromethane

Molecular hom:CH 2 Cl 2

CAS Nr:75-09-2

Cov khoom siv molecular:

Chemical Properties:

Methylene chloride reacts muaj zog nrog cov hlau nquag xws li potassium, sodium, thiab lithium, thiab cov hauv paus muaj zog, piv txwv li, potassium tert-butoxide.Txawm li cas los xij, qhov sib xyaw ua ke tsis sib haum nrog muaj zog caustics, muaj zog oxidizers, thiab hlau uas muaj tshuaj lom neeg xws li magnesium thiab txhuas hmoov.
Nws yog ib qho tseem ceeb uas methylene chloride tuaj yeem tua qee hom txheej, yas, thiab roj hmab.Tsis tas li ntawd, dichloromethane reacts nrog kua oxygen, sodium-potassium alloy, thiab nitrogen tetroxide.Thaum cov khoom sib txuas nrog dej, nws corrodes ib co stainless hlau, npib tsib xee, tooj liab thiab hlau.
Thaum raug tshav kub los yog dej, dichloromethane ua rhiab heev vim nws raug hydrolysis uas yog ceev los ntawm lub teeb.Raws li ib txwm muaj, cov kev daws teeb meem ntawm DCM xws li acetone lossis ethanol yuav tsum ruaj khov rau 24 teev.
Methylene chloride tsis hnov ​​​​mob nrog alkali hlau, zinc, amines, magnesium, nrog rau cov alloys ntawm zinc thiab txhuas.Thaum sib xyaw nrog nitric acid los yog dinitrogen pentoxide, lub compound tuaj yeem tawg heev.Methylene chloride yog flammable thaum tov nrog methanol vapor hauv huab cua.
Txij li thaum lub compound tuaj yeem tawg, nws yog ib qho tseem ceeb kom tsis txhob muaj tej yam mob xws li sparks, kub qhov chaw, qhib nplaim taws, tshav kub, static paug, thiab lwm yam ignition qhov chaw.

Daim ntawv thov:

1, Siv rau grain fumigation thiab refrigeration ntawm low-pressure freezer thiab cua txias ntaus ntawv.
2 、 Siv ua kuab tshuaj, extractant, mutagen.
3 、 Siv hauv kev lag luam hluav taws xob.Feem ntau siv los ntxuav thiab de-greasing tus neeg sawv cev.
4 、 Siv los ua cov tshuaj loog hauv zos, tus neeg ua haujlwm khov kho, tus neeg tua hluav taws tua hluav taws, tshuaj pleev xim hlau thiab degreasing tus neeg saib xyuas.
5 、 Siv ua cov organic synthesis intermediates.