Dichloromethane DCM CAS No.75-09-2 yog dab tsi? Daim Ntawv Qhia Txog Kev Nyab Xeeb thiab Kev Nyab Xeeb Ua tiav

Dichloromethane (DCM), tseem hu ua methylene chloride (CAS 75-09-2), yog ib qho nruab nrab ntawm cov polar, volatile chlorinated hnyav siv dav hauv kev tsim tshuaj, kev ua tshuaj, kev rho tawm, ntxuav hlau, thiab kev siv hauv chav kuaj.

Dichloromethane (DCM), tseem hu ua methylene chloride, yog ib qho ntshiab, tsis muaj xim, tsis muaj kuab lom organochlorine nrog ib qho me me, qab zib, ether -zoo li tsw. CAS 75-09-2, nws cov tshuaj formula yog CH₂Cl₂. Nws yog qhov muaj txiaj ntsig zoo hauv kev lag luam thiab chaw kuaj chemistry raws li cov kuab tshuaj muaj zog vim nws qhov tsis tshua muaj hluav taws kub, siab volatility, thiab muaj peev xwm yaj ntau yam ntawm cov organic tebchaw.

Cov ntaub ntawv yooj yim

• Cov npe nrov: Dichloromethane, methylene chloride, methylene dichloride
• Standard abbreviation: DCM
• CAS Nr .: 75-09-2
• Cov mis mos molecular: CH₂Cl₂
• Chav kawm tshuaj: Haloalkane (dihalomethane)

Nyob rau hauv chav tsev kub, DCM yog cov xim tsis muaj xim, muaj kuab heev nrog cov yam ntxwv me me, tsw qab zoo li chloroform. Thaum cov kab mob tshwm sim los ntawm kev ua volcanic, marine algae thiab cov av ntub dej, ntau dua 99% ntawm kev lag luam DCM yog tsim los ntawm cov txheej txheem chlorination.

GNEE BIO muab cov khoom siv siab -purity dichloromethane (DCM) rau kev lag luam kev lag luam, kev rho tawm cov tshuaj thiab cov ntawv siv hauv chav kuaj, nrog rau kev tswj xyuas zoo thiab kev txhawb nqa cov ntaub ntawv xa tawm.
Yam khoom: Muaj Qib Dichloromethane (DCM) / Methylene Chloride CAS 75-09-2 High-Purity Solvent

Molecular Structure thiab Polarity

Lub dichloromethane molecule muaj ib lub hauv paus carbon atom bonded rau ob hydrogen atoms thiab ob chlorine atoms. Cov pa roj carbon atom yog sp³ hybridized, muab cov molecule ib tetrahedral geometry nrog daim ntawv cog lus kaum ze rau 109.5 degree.

Puas yog Dichloromethane DCM Polar?

Yog lawm. DCM yog cais raws li ib tug nruab nrab polar aprotic hnyav. Qhov polarity tshwm sim los ntawm qhov sib txawv ntawm electronegativity ntawm carbon, hydrogen, thiab chlorine atoms. Vim hais tias cov molecular geometry tsis tag tshem tawm cov nyiaj dipoles ntawm tus kheej, nws muaj lub sijhawm net dipole.

Nws qhov nruab nrab polarity tso cai rau nws kom yaj ntau yam ntawm cov organic tebchaw, suav nrog cov polar thiab nonpolar tshuaj. Raws li cov kuab tshuaj aprotic, DCM CAS 75-09-2 tsis pub cov protons thiab feem ntau siv rau hauv cov organic synthesis, cov txheej txheem rho tawm, thiab cov tshuaj tiv thaiv ua haujlwm.

Cov khoom tseem ceeb ntawm lub cev

Tshuaj Reactivity thiab Stability

1. Kev ruaj ntseg hauv chav tsev: Chemically inert nyob rau hauv ib txwm tuav tej yam kev mob; tsis hydrolyze yooj yim hauv dej nruab nrab.
2. Thermal decomposition: Decomposes ntawm qhov kub siab kom tso cov pa phem xws li phosgene (COCl₂) thiab hydrogen chloride (HCl).
3. Flammability: Tsis suav tias yog cov nplaim taws heev, tab sis cov vapors tuaj yeem tsim cov khoom tawg nrog cov huab cua ntawm qhov siab thiab muaj zog oxidizers.
4. Reagent compatibility: Feem ntau ruaj khov rau dilute acids thiab bases; Txawm li cas los xij, nws tuaj yeem raug kev tawm tsam ntawm nucleophilic thiab degradation nyob rau hauv cov xwm txheej yooj yim lossis muaj zog nucleophiles.

• Xav tau kev txheeb xyuas qhov tseeb? Thov COA, TDS thiab MSDS cov ntaub ntawv los xyuas cov ntsiab lus purity, impurity txwv thiab tuav cov cai ua ntej kev yuav khoom ntau.

Kev lag luam dichloromethane yog tsim los ntawm chlorination ntawm methane lossis methyl chloride ntawm qhov kub ntawm 400℃thiab 500 degree.

Cov txheej txheem tsim ntau yam chlorinated methane derivatives:

CH₄ → CH₃Cl → CH₂Cl₂ → CHCl₃ → CCl₄

Cov txiaj ntsig sib xyaw yog sib cais los ntawm fractional distillation, nrog dichloromethane zoo zoo raws li nws qhov kub tsis tshua muaj kub.
 

1. Pharmaceutical thiab Natural Product Extraction

Tus qauv hnyav rau rho tawm cov khoom xyaw tshuaj nquag (APIs) thiab cog alkaloids los ntawm raw biomass.
Keeb kwm qhov tseem ceeb hnyav rau kas fes thiab tshuaj yej decaffeination. Cov zaub mov niaj hnub no- cov ntawv thov qib tau tswj hwm nruj kom ntseeg tau tias cov kuab tshuaj seem nyob hauv tau raws li cov qauv kev nyab xeeb khoom noj.
 

2. Xim thiab txheej tshem tawm

Ua tau zoo ntawm kev nkag mus thiab rhuav tshem cov ntaub ntawv polymer hauv cov xim, kua roj vanish thiab txheej; ib tug tseem ceeb muaj nyob rau hauv industrial xim strippers thiab graffiti removers.
Cov neeg siv khoom thiab cov xim ua lag luam feem ntau-Kev siv cov khoom siv tau raug txwv lossis raug txiav tawm hauv ntau qhov chaw txiav txim vim muaj kev pheej hmoo rau kev noj qab haus huv.

3. Organic Chemical Manufacturing

Workhorse hnyav rau cov organic synthesis, tshwj xeeb tshaj yog rau SN2 cov tshuaj tiv thaiv, Grignard cov tshuaj tiv thaiv kev ua haujlwm thiab theem- hloov catalysis.
Siv nyob rau hauv zus tau tej cov polyurethane foams, agrochemicals thiab yees duab cov ntaub ntawv.

4. Hlau Degreasing thiab Precision Ntxuav

Dichloromethane yog siv nyob rau hauv vapor degreasing systems kom tshem tawm cov roj, roj thiab ua cov seem ntawm precision hlau qhov chaw nyob rau hauv lub aerospace, automotive thiab electronics industries.

5. Chaw soj ntsuam thiab tshawb fawb

Cov kuab tshuaj niaj hnub rau cov kua -kua extraction, siab -kev ua tau zoo kua chromatography (HPLC) cov qauv npaj thiab cov txheej txheem organic chemistry.
Txaus siab rau daim ntawv thov uas yuav tsum tau ceev cov kuab tshuaj evaporation thiab tsawg thermal stress ntawm analytes.

Cov tshooj lus hais txog:High -Purity Dichloromethane (DCM) CAS 75-09-2 rau Industrial, Pharmaceutical Applications

Tebchaws Asmeskas: 2024 EPA TSCA Txoj Cai Kawg

Thaum lub Plaub Hlis 2024, Lub Chaw Haujlwm Saib Xyuas Kev Tiv Thaiv Ib Cheeb Tsam Tebchaws Meskas (EPA) tau tshaj tawm nws txoj cai tswjfwm kev pheej hmoo zaum kawg rau dichloromethane raws li Txoj Cai Tswj Tshuaj Toxic (TSCA), sawv cev rau tsoomfwv txoj cai nruj tshaj plaws ntawm DCM rau hnub tim. Txoj cai tau siv rau Lub Xya Hli 8, 2024.
Cov kev cai tseem ceeb:

• Txwv tsis pub siv: Feem ntau cov neeg siv khoom thiab kev lag luam siv nrog rau cov xim stripping, degreasing dav dav thiab tshem tawm cov nplaum yog txwv.
• Tso cai siv: Kev tshawb fawb hauv chaw soj ntsuam tseem tso cai, raug tswj xyuas nruj heev.
• Hloov kho cov kev txwv tsis pub dhau: Txoj cai tsim kom muaj kev txwv qhov chaw ua haujlwm qis dua piv rau cov qauv Cal/OSHA yav dhau los:

Tuam Tshoj Cov Kev Cai Lij Choj

Tuam Tshoj tau ntxiv dag zog rau kev tswj hwm ib puag ncig rau dichloromethane los ntawm kev ua qias tuaj - tswj thiab ua haujlwm - cov cai tswj kev nyab xeeb.

Cov kev txwv tseem ceeb suav nrog:

• Kev txwv tsis pub DCM{0}} muaj cov khoom siv tshuaj pleev ib ce.
• Kev txwv rau qee yam xim stripper formulations.
• Emission tswj cov cai rau cov chaw tsim tshuaj.
• Txhim kho kev tswj hwm qhov chaw ua haujlwm raug.

GNEE BIO txhawb nqa cov neeg siv khoom nrog cov ntaub ntawv thiab cov ntaub ntawv ua raws li xav tau rau DCM cov khoom xa tuaj raws li cov cai siv tau.

Cov Khoom Siv Tiv Thaiv Tus Kheej (PPE)

Cov cuab yeej tiv thaiv tus kheej tsim nyog (PPE) yuav tsum tau siv thaum tuav cov tshuaj dichloromethane kom txo tau qhov raug mob. Pom zoo PPE suav nrog:

• Tshuaj txhuam cov tsom iav thiab cov khaub ncaws tiv thaiv kom tsis txhob sib cuag ntawm daim tawv nqaij nrog cov kuab tshuaj.
• Organic vapor respirator.
• Dichloromethane-cov hnab looj tes tiv taus.

Engineering Controls

Kev tswj xyuas engineering yog qhov tseem ceeb rau kev txo qis cov pa paug hauv huab cua thiab tswj kom muaj kev nyab xeeb ntawm kev ua haujlwm. Cov kev ntsuas pom zoo suav nrog:

• Certified tshuaj fume hoods.
• kaw kaw tshuab kom txo cov kuab tshuaj emissions.
• Local tso pa cua tshuab.
• Cov kev saib xyuas huab cua niaj hnub los txheeb xyuas kev ua raws li kev txwv kev ua haujlwm.

Kev Cia Siab

Dichloromethane hnyavyuav tsum tau muab khaws cia rau hauv cov kev tswj xyuas kom tswj tau cov khoom zoo thiab txo qhov kev pheej hmoo ntawm kev nyab xeeb. Cov kev cai khaws cia uas pom zoo muaj xws li:

• Khaws cov thawv ntim kom nruj.
• Khaws cov khoom cia rau hauv qhov chaw txias, qhuav, thiab zoo - qhov cua.
• Khaws cia kub qis dua 40℃thaum twg ua tau.
• Khaws cov khoom kom deb ntawm oxidizing cov neeg ua haujlwm thiab lwm yam tshuaj reactive.

Cov lus teb

Thaum muaj qhov nchuav me me, siv cov khoom siv tsis zoo xws li xuab zeb lossis vermiculite kom nqus tau cov kua, tom qab ntawd muab pov tseg kom raug.

Thaum muaj kev nchuav loj, ua raws li cov txheej txheem thaum muaj xwm txheej ceev. Cov kev ntsuas tsim nyog muaj xws li:

• Tshem tawm - cov neeg ua haujlwm tseem ceeb ntawm thaj chaw cuam tshuam.
• Ua kom qhov cua thiab tswj vapor tsub zuj zuj.
• Ua raws li cov txheej txheem daws teeb meem thaum muaj xwm txheej tshwm sim.

Tag nrho cov khoom pov tseg dichloromethane (xws li cov khoom siv tshuaj tua kab mob thiab cov tshuaj ntxuav tu) yuav tsum tau muab pov tseg raws li cov cai tswj kev phom sij hauv zos.

Muaj Specifications

Ntim Cov Kev Xaiv

GNEE BIO Cov ntaub ntawv txhawb nqa

• COA
• SDS/MSDS
• TDS
• Daim ntawv teev npe
• Daim ntawv pov thawj ntawm Keeb Kwm
• Export cov ntaub ntawv

Q: Puas yog dichloromethane polar lossis tsis yog -polar?

A: Dichloromethane muaj nruab nrab polarity. Nws cov qauv tetrahedral tsis tag nrho tshem tawm lub sijhawm dipole tsim los ntawm ob lub ntsiab lus C-Cl daim ntawv cog lus, ua rau lub sijhawm molecular dipole. Nws yog cais raws li polar aprotic hnyav.
 

Q: Puas yog dichloromethane kua miscible nrog dej?

A: No. DCM has low solubility in water (approximately 20 g/L at 25℃) and, due to its high density, forms a distinct bottom layer. Cov cuab yeej no ua rau nws siv dav hauv cov kua - cov txheej txheem rho tawm kua.
 

Q: Puas yog DCM flammable?

A: Nyob rau hauv ib txwm muaj mob, dichloromethane feem ntau yog cais raws li tsis yog -flammable, txawm hais tias nws cov khoom decomposition tuaj yeem ua rau muaj kev phom sij ntawm qhov kub thiab txias.

Q: Vim li cas dichloromethane dav siv los ua cov kuab tshuaj?

A: Nws ua ke ntawm nruab nrab polarity, dav solvency, tsis tshua muaj boiling point, thiab yooj yim ntawm kev tshem tawm ua rau nws yog ib qho kev xaiv zoo heev rau industrial thiab kuaj daim ntawv thov.

CAS No.75-09-2 Dichloromethane/methylene chloridetseem yog ib qho ntawm lub ntiaj teb tseem ceeb tshaj plaws kev lag luam cov kuab tshuaj. Nws zoo heev solvency, nruab nrab polarity, tsawg boiling point, thiab versatility txhawb daim ntaub ntawv xws li los ntawm kws extraction thiab tshuaj raug tsim rau hlau tu thiab kuaj kuaj.

Txawm hais tias nws qhov kev ua tau zoo, DCM nthuav qhia kev noj qab haus huv thiab ib puag ncig txaus ntshai. Raws li cov kev cai txuas ntxiv nruj thoob ntiaj teb, cov tuam txhab thiab cov neeg siv kawg yuav tsum tau txais kev tswj hwm engineering tsim nyog, kev saib xyuas kev raug mob, thiab cov txheej txheem tswj kev nyab xeeb kom ntseeg tau tias kev ua raws cai thiab kev tiv thaiv cov neeg ua haujlwm.

Tsim los ntawm 2016 thiab ib lub koom haum ntawm GNEE Group,GNEE BIOyog ib lub tuam txhab Suav tshwj xeeb hauv kev muab khoom thiab xa tawm ntawm siab -purity organic solvents, petrochemicals, thiab tshuaj raw khoom.
Peb muab tag nrho cov ntaub ntawv xa tawm ua raws cai rau txhua pawg ntawm cov khoom, suav nrog Daim Ntawv Pov Thawj Kev Ntsuam Xyuas (COA), Cov Ntaub Ntawv Kev Nyab Xeeb Cov Ntaub Ntawv (MSDS), thiab Cov Ntaub Ntawv Cov Ntaub Ntawv (TDS).

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