Methylene chloride, ib qho organic compound nrog cov tshuaj formula CH2Cl2, yog cov kua tsis muaj xim pob tshab nrog cov ntxhiab tsw zoo ib yam li ether.Nws yog me ntsis soluble hauv dej, ethanol thiab ether.Nyob rau hauv tej yam kev mob, nws yog ib tug uas tsis yog-combustible hnyav nrog tsawg boiling point.Thaum nws cov vapor dhau los ua cov ntsiab lus siab hauv huab cua kub, nws yuav ua kom tsis muaj zog hlawv cov roj sib xyaw, uas feem ntau siv los hloov cov roj av ether, ether, thiab lwm yam.
Khoom:Ntshiabmethylene chloridetsis muaj flash point.Cov kuab tshuaj uas muaj qhov sib npaug ntawm dichloromethane thiab roj av, hnyav naphtha lossis toluene tsis yog nplaim taws.Txawm li cas los xij, thaum dichloromethane sib xyaw nrog acetone lossis methyl Chemicalbook cawv kua hauv 10: 1 piv sib xyaw, qhov sib tov muaj qhov taw tes nyem, vapor thiab cua los ua ib qho kev sib xyaw tawg, tawg txwv 6.2% ~ 15.0% (ntim).
APPLICATION:
1. Siv rau grain fumigation thiab refrigeration ntawm tsis tshua muaj siab txias tub yees thiab cua txias chav tsev.
2, Siv raws li hnyav, extractant, mutagenic tus neeg sawv cev.
3, Siv hauv kev lag luam hluav taws xob.Feem ntau siv los ua tus neeg saib xyuas kom tshem tawm cov roj.
4, Siv raws li kev kho hniav hauv zos tshuaj loog, refrigerant, tua hluav taws tus neeg saib xyuas, hlau nto txheej tu thiab degreasing tus neeg saib xyuas.
5, Siv los ua ib qho nruab nrab hauv cov organic synthesis.
Txoj kev npaj:
1. Natural gas chlorination txheej txheem Cov pa roj carbon monoxide reacts nrog cov roj chlorine.Tom qab hydrochloric acid uas ua los ntawm hydrogen chloride yog absorbed los ntawm dej, cov residual kab hydrogen chloride raug tshem tawm nrog lye, thiab cov khoom tiav yog tau los ntawm ziab, compression, condensation thiab distillation.
2. Chloromethane thiab chloromethane reacted nrog chlorine gas nyob rau hauv 4000kW lub teeb los tsim dichloromethane, uas yog tiav los ntawm alkali ntxuav, compression, condensation, ziab thiab rectification.Lub ntsiab byproduct yog trichloromethane.
Kev ruaj ntseg:
1.Kev ceev faj rau kev ua haujlwm:Tsis txhob pos huab thaum ua haujlwm, thiab hnav cov khoom tiv thaiv tus kheej tsim nyog.Tsis txhob tso cov pa thiab pos huab rau hauv huab cua ntawm thaj chaw ua haujlwm.Ua haujlwm hauv ib cheeb tsam tshwj xeeb nrog qhov cua zoo thiab siv qhov tsawg kawg nkaus.Cov khoom siv thaum muaj xwm txheej ceev yuav tsum muaj txhua lub sijhawm los tua hluav taws thiab tiv thaiv cov txeej.Cov thawv ntim khoom khoob tseem tuaj yeem muaj cov khoom seem txaus ntshai.Tsis txhob ua haujlwm nyob ib puag ncig ntawm vuam, nplaim taws, lossis qhov chaw kub.
2.Kev ceev faj cia:Khaws rau hauv qhov chaw txias, qhuav, zoo-ventilated yam tsis muaj hnub ci ncaj qha.Khaws kom deb ntawm qhov chaw sov, nplaim taws thiab tsis sib xws xws li muaj zog oxidant, muaj zog acid thiab nitric acid.Khaws rau hauv ib lub thawv ntim khoom kom raug.Cov thawv uas tsis siv thiab lub nruas khoob yuav tsum tau kaw kom nruj.Tsis txhob muaj kev puas tsuaj rau lub thawv thiab tshuaj xyuas lub tank tsis tu ncua rau qhov tsis xws luag xws li tawg lossis nchuav.Cov thawv ntim nrog galvanized lossis Phenolic resin kom txo tau qhov decomposition ntawm methylene chloride.Tsawg cia.Tshaj tawm cov cim ceeb toom yog qhov tsim nyog.Lub chaw cia khoom yuav tsum raug cais tawm ntawm cov neeg ua haujlwm hnyav ua haujlwm thiab txwv tsis pub nkag mus rau thaj chaw.Siv cov kav dej yas uas tau tsim los siv nrog cov khoom siv kom tshem tawm cov tshuaj lom.Cov khoom siv tuaj yeem tsim hluav taws xob zoo li qub uas tuaj yeem ua rau combustion.Khaws rau hauv qhov chaw txias, qhuav, zoo ventilated kom deb ntawm tshav ntuj ncaj qha.
3.Ntim thiab thauj:Siv galvanized hlau chim kaw, 250kg ib chim, tsheb ciav hlau tanker, tsheb thauj mus los.Nws yuav tsum tau muab cia rau hauv qhov chaw txias, tsaus, qhuav, zoo ventilated qhov chaw, them sai sai rau noo noo.
Post lub sij hawm: Feb-16-2023