CAS Tsis Yog

Txoj kev purification thiab tshem tawm dej

CAS Tsis Yog. 75-09-2 Methylene Chloride 99.9 feem pua

Tus lej CAS 75-09-2 sib raug rau cov tshuaj ethyl cawv, tseem hu ua ethanol lossis cawv cawv. Nws yog cov kua ntshiab, tsis muaj xim thiab feem ntau siv los ua cov kuab tshuaj thiab ua roj. Ethanol kuj yog hom cawv tseem ceeb hauv cov dej cawv.

Kev siv dichloromethane muaj kev nyab xeeb dua li chloroform, yog li nws feem ntau siv chloroform ua cov extractant hnyav dua dej. Ordinary dichloromethane feem ntau tuaj yeem siv los ua cov extractant ncaj qha. Yog hais tias cov tshuaj purification yog yuav tsum tau, nws yuav tsum tau ntxuav nrog 5 feem pua ​​sodium carbonate tov, ces ntxuav nrog dej, qhuav nrog anhydrous calcium chloride, distilled thiab sau ntawm 40 ~ 41 degree, thiab muab cia rau hauv ib lub raj mis xim av.

CAS tus naj npawb 75-09-2 yog cov tshuaj ethylene oxide. Nws yog cov roj tsis muaj xim uas muaj ntxhiab tsw qab me ntsis thiab feem ntau yog siv los ua tshuaj tua kab thiab ua kom tsis muaj menyuam rau cov khoom siv kho mob. Nws kuj tseem siv los tsim ntau yam tshuaj, suav nrog glycol ethers, ethanolamines, thiab polyethylene terephthalate (PET). Ethylene oxide yog cov nplaim taws heev thiab tuaj yeem ua rau muaj kev phom sij yog tias tsis ua haujlwm zoo. Kev nqus pa ntawm cov pa tuaj yeem ua rau ua pa ua pa, thaum lub sijhawm ntev ntev tuaj yeem ua rau muaj kev cuam tshuam rau lub paj hlwb thiab txawm tias mob qog noj ntshav.

Methylene Chloride (CAS No. 75-09-2) yog cov kuab tshuaj muaj ntau yam uas pom tau ntau daim ntawv thov hauv ntau qhov kev lag luam thoob ntiaj teb. Qee qhov kev siv loj ntawm Methylene Chloride yog raws li hauv qab no:

1. Xim Stripping: Methylene Chloride yog dav siv los ua cov xim stripper vim nws lub zog hnyav heev. Nws tuaj yeem yooj yim yaj thiab tshem tawm txhua yam xim thiab cov kua roj vanish los ntawm cov hlau, cov khoom siv tsheb, thiab rooj tog zaum.

2. Solvent Extraction: Methylene Chloride yog siv rau cov kuab tshuaj extraction ntawm cov tshuaj, cov roj yam tseem ceeb, thiab lwm yam botanicals. Nws kuj tseem siv rau kev tshem tawm caffeine los ntawm cov taum kas fes thiab tshuaj yej nplooj.

3. Aerosol Spray Propellant: Methylene Chloride yog siv los ua cov tshuaj tiv thaiv hauv cov kaus poom aerosol vim nws qhov kub tsis tshua muaj kub thiab siab vapor siab. Nws yog feem ntau siv hauv cov khoom tu tus kheej xws li deodorants, hairsprays, thiab cua fresheners.

4. Chemical Synthesis: Methylene Chloride yog dav siv los ua ib qho hnyav hauv ntau yam tshuaj lom neeg xws li hauv kev tsim tshuaj, agrochemical, thiab tshuaj tshwj xeeb.

5. Cov tub yees: Methylene Chloride yog siv los ua cov kua dej ua haujlwm hauv qee lub tub yees vim nws qhov kub tsis tshua muaj kub thiab muaj peev xwm kub.

6. Kev Tu Hlau: Methylene Chloride yog siv los ntxuav cov hlau thiab cov khoom hauv kev lag luam tsheb thiab aerospace.

7. Adhesive Production: Methylene Chloride yog siv los tsim cov nplaum nplaum thiab cov sealants vim nws lub zog hnyav hnyav thiab ceev ceev evaporation.

8. Ua Npuas Ncauj Tshuab: Methylene Chloride yog siv los ua tus neeg sawv cev hauv kev tsim cov polyurethane ua npuas ncauj rwb thaiv tsev.

Zuag qhia tag nrho, Methylene Chloride yog ntau yam sib xyaw nrog ntau yam kev siv hauv kev lag luam sib txawv. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tsum tau ua tib zoo saib xyuas vim tias nws tuaj yeem tsim kev phom sij yog tias tsis siv kom raug.