Dichloromethane (DCM) thiab methanol yog cov kuab tshuaj sib txawv. Txawm hais tias ob qho tib si yog cov kuab tshuaj muaj txiaj ntsig zoo, lawv sib txawv hauv polarity, solubility, kev nyab xeeb, thiab kev siv.
Methylene Chloride yog dab tsi?
CAS 75-09-2 Methylene Chloride (dichloromethane los yog DCM) yog amoderately polar chlorinated hnyav.
Boiling Point: 39.6℃(evaporates sai)
Solvency Power: Muaj zog heev - dissolves feem ntau cov xim, nrog rau epoxies, polyurethanes, thiab acrylics.
Dab tsi yog methanol?
Methanol (tseem hu ua methyl cawv, cawv ntoo, thiab ntoo ntsuj plig, nrog rau lwm lub npe) yog cov organic tshuaj lom neeg thiab cov cawv aliphatic yooj yim tshaj plaws.
Dichloromethane (DCM) vs methanol: Cov khoom sib txawv
| Khoom | Dichloromethane (DCM) | Methanol |
|---|---|---|
| Solvent Hom | Chlorinated hnyav | Cawv |
| Molecular Formula | CH₂Cl₂ | CH₃OH |
| Polarity | Nruab nrab | Siab |
| Qhov ntom | ~ 1.33 g / cm³ (hnyav tshaj dej) | ~ 0.79 g / cm³ (lub teeb dua dej) |
| Dej tsis sib haum | Immiscible | Ua kom miscible |
| Boiling Point | 39.6 degree | 64.7 degree |
| Tus nqi evaporation | Ceev ceev | Nruab nrab |
| Hom Extraction | Kua - kua extraction | Homogeneous (ib theem) |
| Solvent Strength | Muaj zog (tsis yog-polar rau semi-polar) | Muaj zog (polar compounds) |
| Flammability | Tsis yog -flammable | Cov nplaim taws heev |
| Toxicity | Nruab nrab mus rau siab | Toxic (poisonous yog tias noj) |
| Tej kev siv | Extraction, xim tshem tawm | Synthesis, roj, tu |
Dichloromethane (DCM) vs methanol: Daim ntawv thov sib txawv
DCM:Dav siv los ua cov kuab tshuaj hauv chromatography (feem ntau raws li cov kuab tshuaj tsis muaj zog, lossis ua cov kuab tshuaj muaj zog hauv cov theem ib txwm nrog hexanes), tshuaj tiv thaiv, thiab kev tu vaj tse, raws li.
Methanol:Siv rau siab -polarity extraction (xws li, nyob rau hauv cov khoom noj technology rau phenolic compounds), thiab nyob rau hauv HPLC/GC-MS raws li ib tug polar solvent.
Tsim nyog Dichloromethane DCM Cov Khoom Muag Khoom
Nyem qhov no xa ib qho kev nug
Gneebio yog ib lub chaw tsim tshuaj paus thiab tus neeg muag khoom thoob ntiaj teb, muab siab - zooDichloromethane (DCM)thiabmethanolrau kev siv tshuaj, industrial, thiab kuaj.
Peb txhawb cov neeg siv khoom thoob ntiaj teb nrog:
- ruaj khov zoo thiab COA cov ntaub ntawv
- Tus nqi sib tw
- Yooj yim MOQ thiab xa khoom sai
Tiv tauj peb hnub no rau kev txhawb nqa thiab hais lus.
Tiv tauj peb:
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Peb lub tuam txhab
Gneebioyog cov kws tshaj lij cov khoom siv raw khoom nyob hauv Henan Xeev, Suav. Peb tau dhau daim ntawv pov thawj kev ua haujlwm zoo thiab muaj tus kheej - tswj hwm txoj cai ntshuam thiab xa tawm. Peb cov khoom yog nrov nrog cov neeg siv khoom. Raws li cov khoom lag luam thoob ntiaj teb, peb xa cov ntaub ntawv pov thawj tshuaj raw khoom uas ua raws li REACH, RoHS, ISO thiab lwm yam qauv thoob ntiaj teb. Peb lub peev xwm ntau lawm txhua hli ua kom zoo ib yam thiab muaj kev ntseeg siab rau kev txiav txim ntau.
