1. Taw qhia rau Methanol
Methanol, tseem hu ua hydroxymethane, yog ib qho organic compound thiab qhov yooj yim saturated monohydric cawv. Nws cov tshuaj formula yog CH3OH, CAS naj npawb yog 67-56-1, molecular hnyav yog 32.04, thiab boiling point yog 64.7 ° C. Nws tseem hu ua" ntoo cawv" los" ntoo plig" vim nws twb xub pom nyob rau hauv qhuav distilled ntoo. Cov tshuaj lom neeg qhov ncauj qis tshaj plaws yog kwv yees li 100 mg / kg lub cev hnyav, thiab qhov ncauj noj ntawm 0.3 txog 1 g / kg tuaj yeem ua rau tuag taus. Siv nyob rau hauv kev tsim cov formaldehyde thiab tshuaj tua kab, thiab lwm yam, thiab raws li ib tug extractant ntawm organic teeb meem thiab ib tug denaturant ntawm cawv. Cov khoom tiav lawm feem ntau yog ua los ntawm reacting carbon monoxide nrog hydrogen.
2. Kev siv methanol
Methanol yog siv los ntxuav thiab degreasing tus neeg saib xyuas, MOS qib yog tsuas yog siv rau cov khoom siv sib cais, nruab nrab thiab loj sib xyaw ua ke, thiab qib BV-Ⅲ yog siv rau ultra-loj-scale integrated circuit technology.
Siv raws li kev tshuaj ntsuam xyuas reagents, xws li cov kuab tshuaj, methylation reagents, chromatographic tsom xam reagents. Kuj tseem siv tau rau hauv cov organic synthesis.
Feem ntau, methanol yog cov kuab tshuaj zoo dua li ethanol thiab tuaj yeem yaj ntau cov ntsev inorganic. Nws tseem tuaj yeem sib xyaw nrog roj av ua lwm yam roj. Txij li thaum xyoo 1980s, methanol tau siv los tsim cov roj av octane additive methyl tert-butyl ether, methanol roj av, methanol roj, thiab methanol protein, uas txhawb txoj kev loj hlob ntawm methanol ntau lawm thiab kev lag luam xav tau.
Methanol tsis yog tsuas yog ib qho tseem ceeb ntawm cov khoom siv raw, tab sis kuj yog lub zog zoo heev thiab cov roj tsheb. Methanol reacts nrog isobutylene kom tau MTBE (methyl tert-butyl ether), uas yog high-octane unleaded roj av additive thiab kuj yuav siv tau raws li ib tug hnyav. Tsis tas li ntawd, nws tseem tuaj yeem tsim cov olefins thiab propylene los daws qhov teeb meem ntawm kev tsis txaus.
3. Methanol rov qab
Methanol, raws li cov khoom siv raw zoo dua li ethanol, yog siv dav, thiab nws kuj coj cov teeb meem kev kho kua dej tom qab. Cov pa phem ntawm thaj av ib puag ncig los ntawm kev tsim tshuaj lom neeg yog pom tseeb rau txhua tus. Nws yog lub luag haujlwm uas tsis tuaj yeem tiv thaiv tib neeg lub tebchaws, thiab ib tus tsis tuaj yeem tuav lub siab xav tias nws tsis cuam tshuam rau tus kheej. Calstar methanol rov qab cov cuab yeej tuaj yeem ua kom huv methanol. Cov tshuaj methanol rov qab tuaj yeem siv dua. Kev nyab xeeb tawg-pov thawj, lub sijhawm luv luv, tsis muaj khoom siv. Lub tshuab siv tau rau ntau tshaj 10 xyoo nrog kev saib xyuas tsis tu ncua.
