Cov methylene chloride softens cov khoom yas thiab tso cai rau lawv sib zog ua ke, ua kom muaj kev sib koom ua ke. Ib qho txiaj ntsig tiag tiag rau methylene chloride hnyav yog tias nws yog ib qho ntawm cov evaporating ceev tshaj plaws, thiab yuav sai sai qhuav, tawm hauv lub plhaub npaj tua yuav luag tam sim.
Yuav ua li cas cov tshuaj yuav yaj cov yas tawv?
Melting yas nrog tshuaj. Yuav acetone siv rau cov yas yaj. Acetone yog cov kuab tshuaj uas feem ntau siv los txhuam cov xim los yog ntxuav cov ntsia thawv polish tab sis nws tuaj yeem siv rau melting qee hom yas.
Cov kuab tshuaj dab tsi tuaj yeem yaj cov yas?
Cov pab pawg ua haujlwm polar tso cai rau cov yas los daws cov kuab tshuaj polar xws li acetone lossis MEK.
Puas chloroform yaj yas?
Chloroform reacts vigorously nrog muaj zog caustics, muaj zog oxidants, tshuaj lom neeg hlau xws li txhuas, lithium, magnesium, sodium los yog poov tshuaj, thiab acetone, ua rau hluav taws thiab tawg txaus ntshai. Nws tuaj yeem tua cov yas, roj hmab thiab cov txheej txheem.
MEK puas yuav yaj cov yas?
MEK yog siv los ua cov khoom siv vuam zoo. Nws tuaj yeem yaj ntau cov yas, suav nrog polystyrene, thiab tuaj yeem khi cov yas ua ke.
