Dab tsi yog Dichloromethane (DCM) siv rau? Kev Siv thiab Kev Nyab Xeeb (CAS 75-09-2)

Tom ntej: Dichloromethane CAS 75-09-2, kuj tseem hu ua methylene chloride lossis DCM hnyav, yog ntau yam chlorinated hydrocarbon hnyav nrog cov tshuaj formula CH₂Cl₂ thiab CAS Number 75-09-2. Raws li cov kua tsis muaj xim, tsis muaj kuab lom nrog cov yam ntxwv qab zib, ether-zoo li tsw, cov tshuaj DCM no yog ib qho ntawm cov khoom siv tshuaj hnyav tshaj plaws thoob ntiaj teb, muaj nuj nqis rau nws qhov tshwj xeeb hnyav zog, tsis tshua muaj kub kub taw tes, thiab txheeb ze tshuaj inertness.

Chemical Properties ntawm DCM Solvent

Lub physicochemical zog ntawm dichloromethane muab cov yam ntxwv tseem ceeb, suav nrog:
1. High solvency rau ntau yam organic tebchaw, resins, thiab polymers
2. Tsawg flammability piv rau lwm cov kuab tshuaj hydrocarbon
3. Tsawg boiling point thiab ceev evaporation ntawm ambient kub
4. txheeb ze tshuaj inertness nyob rau hauv tus txheej txheem ua tej yam kev mob
5. Density higher than that of water (1.33 g/mL), facilitating efficient liquid-liquid extraction

•  Yam khoom:Muaj Qib Dichloromethane (DCM) / Methylene Chloride CAS 75-09-2 High-Purity Solvent

DCM Dichloromethane siv rau dab tsi?

Raws li ib qho ntawm ntau yam tshuaj chlorinated cov kuab tshuaj muaj nyob rau hauv kev lag luam, dichloromethane (CAS 75-09-2) yog ib qho tseem ceeb ntawm cov txheej txheem tshuaj nyob rau hauv ntau qhov chaw tsim khoom. Nws qhov tshwj xeeb sib npaug ntawm lub zog hnyav, tsis muaj zog, thiab tshuaj lom neeg ruaj khov ua rau nws qhov hnyav ntawm kev xaiv rau cov ntawv thov loj: xim thiab txheej tshem tawm, kev tsim tshuaj, kas fes thiab tshuaj yej decaffeination, tshuaj ua thiab polymer ntau lawm, hlau degreasing thiab kev lag luam tu, nplaum formulation, aerosol khoom tsim, thiab kev soj ntsuam daim ntawv thov.

1. Xim stripping thiab txheej tshem tawm

Keeb kwm, daim ntawv thov loj tshaj plaws ntawm DCM dichloromethane tau nyob hauv cov xim thiab txheej txheej tshem tawm. Nws lub peev xwm tshwj xeeb los yaj ntau cov xim txheej, kua roj vanish, lacquers, thiab epoxy coatings ua nws tus qauv kev lag luam rau xim stripping kev ua haujlwm hauv tsheb, aerospace, kev tsim kho, thiab rooj tog kho dua tshiab. Cov kuab tshuaj nkag mus rau txheej txheej sai sai, rhuav tshem cov ntaub ntawv polymer thiab tso cai rau kev tshem tawm txhua yam tsis muaj kev puas tsuaj rau hauv qab substrates.

• Nco tseg:Raws li US EPAs 2024 TSCA txoj cai tswj hwm kev pheej hmoo, cov neeg siv khoom siv cov tshuaj methylene chloride raug txwv, thaum muaj ntau yam kev lag luam thiab kev lag luam siv tau raug tso cai raws li kev cai nruj ntawm Workplace Chemical Protection Program (WCPP), suav nrog kev saib xyuas raug, kev tswj xyuas engineering, thiab kev tiv thaiv cov neeg ua haujlwm.

2. Pharmaceutical Manufacturing thiab Extraction

Kev lag luam kws tshuaj vam khom ntau ntawm DCM hnyav (CAS 75-09-2) rau ntau yam txheej txheem tseem ceeb:

• Active Pharmaceutical Ingredient (API) extraction thiab purification
• Cov tshuaj tiv thaiv nruab nrab rau cov organic synthesis ntawm steroids, tshuaj tua kab mob, thiab cov vitamins
• Tablet txheej hnyav nyob rau hauv cov tshuaj formulation
• Ascorbic acid (vitamin C) ntau lawm txheej txheem
• Chromatographic cais thiab purification ntawm complex molecules

3. Decaffeination ntawm kas fes thiab tshuaj yej

Ib qho zoo tshaj plaws - paub txog kev lag luam khoom noj khoom haus ntawm methylene chloride yog cov txheej txheem decaffeination rau cov taum kas fes thiab tshuaj yej nplooj. Kev xaiv solubility ntawm caffeine hauv DCM tso cai rau kom muaj txiaj ntsig zoo thaum khaws cov tshuaj tsw qab thiab cov roj tsw qab uas ua rau kas fes thiab tshuaj yej.
Methylene chloride tseem yog ib qho kev pom zoo thiab dav siv decaffeination hnyav hauv ntau lub teb chaws vim nws xaiv caffeine extraction efficiency. Txawm li cas los xij, lwm yam thev naus laus zis xws li Swiss Water® ua, ethyl acetate extraction, thiab supercritical CO₂ extraction kuj tau siv dav hauv kev lag luam kas fes.

4. Kev tsim tshuaj thiab kev ua haujlwm

Raws li universal cov tshuaj tiv thaiv hnyav, DCM tshuaj ua lub luag haujlwm tseem ceeb hauv kev tsim tshuaj:

• Polycarbonate resin ntau lawm ua cov txheej txheem tseem ceeb hnyav
• Keeb kwm, methylene chloride tau siv los ua tus neeg sawv cev tshuab hauv polyurethane ua npuas ncauj ntau lawm, txawm hais tias nws siv tau poob qis vim kev xav txog kev nyab xeeb ntawm ib puag ncig thiab kev ua haujlwm.
• Synthetic fiber manufacturing thiab polymer ua
• Tshuaj tua kab thiab tshuaj herbicide formulation thiab ntau lawm
• Extraction hnyav rau cov khoom ntuj, flavors, thiab fragrances

5. Hlau Degreasing thiab Industrial Cleaning

Dichloromethane ua haujlwm zoo li -kev ua haujlwm degreasing tus neeg sawv cev hauv cov hlau fabrication thiab precision manufacturing:

• Vapor degreasing rau precision hlau Cheebtsam hauv aerospace thiab automotive industries
• Kev siv hluav taws xob tshwj xeeb tu cov ntawv thov uas yuav tsum tau muaj kuab heev thiab evaporation sai, txawm hais tias ntau lub tuam txhab tau hloov mus rau lwm txoj kev siv thev naus laus zis.
• Tshem tawm cov roj, roj, thiab cov kua machining ntawm cov hlau nto ua ntej pleev xim los yog sib dhos
• Kev ntxuav txias hauv cov hlau ua haujlwm thiab cov khw muag khoom

6. Adhesive thiab sealant ntau lawm

Methylene chloride ua haujlwm ua cov kuab tshuaj tseem ceeb hauv kev tsim cov nplaum, tshwj xeeb tshaj yog rau cov ntawv thov kev sib txuas ntawm cov yas. Nws dissolves ntau hom polymers xws li polystyrene, polycarbonate, ABS, thiab acrylics, ua kom muaj cov nplaum tshwj xeeb nrog cov yam ntxwv ziab sai thiab muaj zog sib txuas.

7. Aerosol Formulations

Vim nws cov evaporation sai thiab kev daws teeb meem zoo heev, methylene chloride muaj keeb kwm tau siv los ua cov kuab tshuaj nyob rau hauv qee yam kev lag luam aerosol formulations, txawm hais tias kev cai txwv tau txo daim ntawv thov no. Txawm hais tias kev txhawj xeeb ntawm ib puag ncig tau txo daim ntawv thov no, nws tseem yog ib qho tseem ceeb hauv kev tsim cov khoom lag luam aerosol.

8. Cov ntawv thov kuaj thiab tshuaj ntsuam xyuas

Hauv kev tshawb fawb thiab tshuaj ntsuam xyuas, dichloromethane (CAS 75-09-2) yog qhov tseem ceeb rau:

• Kua-kua extraction hauv analytical chemistry
• High -kev ua haujlwm ua kua chromatography (HPLC) mobile theem tivthaiv
• Nyias -txheej txheej chromatography (TLC) kev loj hlob hnyav
• Organic synthesis cov tshuaj tiv thaiv nruab nrab
• Kev npaj ua piv txwv rau kev txheeb xyuas ib puag ncig thiab forensic

Vim li cas Dichloromethane thiaj li muaj txiaj ntsig zoo li cov kuab tshuaj?

Lub zog tshwj xeeb hnyav ntawm dichloromethane yog los ntawm nws qhov nruab nrab polarity, uas tso cai rau nws kom yaj ob qho tib si tsis yog -polar organic tebchaw thiab cov khoom nruab nrab ntawm cov polar. Ua ke nrog nws qhov tsis tshua muaj kub kub (39.6 degree), tus nqi evaporation ceev, thiab tshuaj lom neeg ruaj khov, DCM yog qhov tshwj xeeb tshaj yog rau kev rho tawm, ntxuav, ua cov khoom siv polymer, thiab cov ntawv thov tshuaj tiv thaiv uas yuav tsum tau ua kom cov kuab tshuaj rov qab tau yooj yim.

Puas yog Dichloromethane DCM kua Flammable?

Nyob rau hauv ib txwm ambient tej yam kev mob, dichloromethane kua feem ntau yog cais raws li tsis yog -flammable. Txawm li cas los xij, thaum raug kub hnyiab, cov khoom siv hluav taws xob muaj zog, lossis qhov chaw kaw, cov khoom sib tov sib xyaw tuaj yeem tsim. Yog li ntawd, txoj kev ua pa uas tsim nyog thiab kev nyab xeeb ntawm kev lag luam tseem ceeb heev thaum tuav thiab khaws cia.

Dab tsi Industries siv DCM hnyav tshaj plaws thoob ntiaj teb?

Cov neeg siv khoom loj tshaj plaws hauv ntiaj teb ntawm dichloromethane hnyav suav nrog kev tsim tshuaj, kev ua tshuaj, ua npuas dej, tshuaj ntxuav hlau, nplaum nplaum, coatings tshwj xeeb, thiab kev lag luam extraction. Kev thov muaj zog tshwj xeeb hauv Asia-Pacific vim thaj tsam nthuav dav kev lag luam tshuaj thiab kev tsim khoom lag luam.

Kev tswj hwm raws li txoj cai thiab kev xav txog kev nyab xeeb

2024 EPA Regulatory Update

Thaum Lub Plaub Hlis 2024, Lub Chaw Haujlwm Saib Xyuas Kev Tiv Thaiv Ib Cheeb Tsam Tebchaws Meskas (EPA) tau tshaj tawm cov kev cai tshiab tseem ceeb raws li Txoj Cai Tswj Cov Tshuaj Tiv Thaiv Kab Mob (TSCA) hais txog methylene chloride raug. Txoj cai tshiab tsim kom muaj kev txwv tsis pub muaj kev cuam tshuam ntau:

• Nco tseg:Cov kev txwv no yog EPA TSCA Existing Chemical Exposure Limits (ECELs) tsim los rau kev tswj hwm kev pheej hmoo ntawm chaw ua haujlwm thiab yuav tsum tsis txhob cuam tshuam nrog OSHA Permissible Exposure Limits (PELs). Feem ntau cov neeg siv khoom siv nrog rau cov xim stripping yog tam sim no txwv. Kev tshawb nrhiav kev siv cov chaw kuaj mob tseem tso cai nyob rau hauv Kev Ua Haujlwm Kev Tiv Thaiv Tshuaj Tiv Thaiv Kev Ua Haujlwm (WCPP) nrog rau kev tswj xyuas engineering nruj.
•  Related Article:Puas yog dichloromethane (CAS 75-09-2) txwv nyob hauv UK?

Health Hazard Classification

Lub Koom Haum Thoob Ntiaj Teb rau Kev Tshawb Fawb Txog Kev Kho Mob (IARC) faib cov tshuaj methylene chloride raws li Pawg 2A (tej zaum carcinogenic rau tib neeg), raws li cov pov thawj txaus hauv cov tsiaj sim thiab cov pov thawj tsawg hauv tib neeg. Cov kev pheej hmoo tseem ceeb ntawm kev noj qab haus huv suav nrog:

1. Cov teebmeem hnyav: Central nervous system kev nyuaj siab, kiv taub hau, mob taub hau, xeev siab, tsis nco qab
2. Kev pheej hmoo plawv: Metabolism rau carbon monoxide, nce carboxyhemoglobin qib
3. Cov teebmeem mob ntev: daim siab puas, puas hlwb puas, muaj peev xwm carcinogenic
4. Cov teebmeem dermal: tawv nqaij khaus, tshuaj kub hnyiab nrog kev sib cuag ntev

Yuav tsum muaj kev tswj xyuas kev nyab xeeb

Rau kev tso cai kev lag luam thiab chaw kuaj mob, kev ntsuas kev nyab xeeb yuav tsum muaj xws li:

• Tag nrho cov manipulations ua tsuas yog nyob rau hauv cov ntaub ntawv pov thawj tshuaj fume hoods
• Tsim nyog PPE: tshuaj lom neeg- hnab looj tes tiv thaiv (Silver Shield, Viton, lossis PVA), tsom iav kev nyab xeeb, lub tsho tiv no
• Kev saib xyuas kev kis tus kab mob thiab kev saib xyuas kev kho mob
• Kev cob qhia neeg ua haujlwm txog kev phom sij, kev tuav cov txheej txheem, thiab kev teb thaum muaj xwm txheej ceev
• Kev khaws cia hauv cov khoom siv tshuaj raug pom zoo kom deb ntawm qhov chaw sov

Xaus

Dichloromethane (DCM, CAS 75-09-2) tseem yog ib qho ntawm ntau yam kev lag luam cov kuab tshuaj uas tsim los rau hnub tim, nrhiav kev siv hauv kev tsim tshuaj, tshuaj synthesis, thiab kev tshawb fawb hauv chav kuaj.
Thaum muab khoom siab -purity dichloromethane (CAS 75-09-2) rau kev pom zoo tsim thiab R&D lub hom phiaj, thov kom ua raws li tag nrho cov kev cai hauv zos, xeev, thiab tseem fwv, suav nrog cov kev cai siv los ntawm US Environmental Protection Agency (EPA) hauv 2024 raws li Txoj Cai Toxic Substances Control Act (TSCA).

Tau txais kev qhia tshwj xeeb, COA, SDS, kev xaiv ntim khoom, thiab cov lus sib tw!

Hais txog peb

Rau siab -purity Dichloromethane CAS 75-09-2,Gneebioyog koj lub chaw tsim khoom lag luam uas ntseeg siab. Peb muab cov khoom lag luam txhim khu kev qha thiab zoo ib yam ntawm cov kuab tshuaj tseem ceeb no rau koj qhov kev tsim khoom thiab R & D xav tau. Peb cov khoom yog zoo tagnrho rau kev siv xws li tshuaj ua, extraction, thiab degreasing.

Vim li cas thiaj xaiv Gneebio?

✅ Muaj peev xwm ntau lawm txhua hli
✅ Daim ntawv pov thawj zoo (REACH, ROHS, ISO)
✅ Kev xaiv ntim khoom kom haum rau koj cov kev xav tau
✅ Ceev ceev, txhim khu kev qha shipping
✅ Tag nrho cov ntaub ntawv suav nrog

Dichloromethane ntim

DCM Shipping

Peb muaj kev txaus siab heev hauv kev muab ntau yam kev xaiv ntim khoom kom haum rau ntau yam kev xav tau ntawm peb cov neeg siv khoom. Peb qhov kev cog lus rau cov neeg siv khoom txaus siab txhais tau hais tias peb yeej ib txwm npaj kom haum rau txhua qhov kev thov tshwj xeeb uas koj xav tau.