Cov Khoom Siv Acetonitrile Qib Kev Lag Luam | Kev Zoo Txhim Khu Kev & Kev Xa Tawm Thoob Ntiaj Teb
Cov Ntawv Thov Tseem Ceeb
Hauv kev tshuaj xyuas tshuaj lom neeg, acetonitrile yog cov kuab tshuaj siv rau kev ua haujlwm siab ua kua chromatography (HPLC) thiab roj chromatography (GC) kev tshuaj xyuas. Nws muaj solubility zoo thiab viscosity qis, ua kom yaj tau ntau yam organic thiab inorganic sib xyaw kom muab cov txiaj ntsig tshuaj xyuas meej. Acetonitrile kuj tseem siv los npaj cov kev daws teeb meem txheem thiab cov kua ntsuas, kom ntseeg tau tias qhov tseeb thiab kev ntseeg siab ntawm kev tshuaj xyuas.
Hauv kev tsim cov organic, acetonitrile yog ib qho tseem ceeb ntawm cov kuab tshuaj thiab cov khoom nruab nrab. Nws tuaj yeem yaj ntau yam organic sib xyaw, muab ib puag ncig ruaj khov rau cov tshuaj tiv thaiv. Piv txwv li, hauv kev tsim cov tshuaj intermediates thiab cov tshuaj tsw qab, acetonitrile tuaj yeem ua haujlwm ua cov kuab tshuaj los txhawb cov tshuaj tiv thaiv. Tsis tas li ntawd, acetonitrile tuaj yeem koom nrog qee cov tshuaj tiv thaiv los tsim cov tshuaj tiv thaiv nrog cov haujlwm tshwj xeeb. Piv txwv li, acetonitrile tuaj yeem dhau los ntawm cov tshuaj tiv thaiv nucleophilic nrog nws pawg cyano los tsim cov amine lossis cawv sib xws.
Hauv kev lag luam tshuaj, acetonitrile siv dav hauv kev tsim tshuaj thiab kev ntxuav cov txheej txheem. Nws tuaj yeem yaj ntau yam tshuaj precursors thiab intermediates, pab txhawb kev ua haujlwm tshuaj lom neeg zoo. Piv txwv li, hauv kev tsim cov tshuaj tua kab mob thiab cov tshuaj cardiovascular, acetonitrile tuaj yeem ua haujlwm ua cov kuab tshuaj los ua kom cov tshuaj tiv thaiv thiab cov txiaj ntsig ntau ntxiv. Tsis tas li ntawd, acetonitrile tuaj yeem siv rau kev siv tshuaj crystallization thiab kev ntxuav kom ntseeg tau tias cov tshuaj huv thiab zoo.
Hauv kev lag luam tshuaj tsw qab thiab tshuaj pleev ib ce, acetonitrile siv rau kev tsim thiab ntxuav cov tshuaj tsw qab. Nws tuaj yeem siv los rho tawm cov khoom xyaw tshuaj tsw qab ntuj, xws li cov roj tseem ceeb los ntawm cov nroj tsuag. Tsis tas li ntawd, acetonitrile tuaj yeem siv los tsim cov tshuaj tsw qab nrog cov ntxhiab tshwj xeeb rau tshuaj tsw qab thiab tshuaj pleev ib ce.
Hauv kev lag luam hluav taws xob, acetonitrile siv ua tus neeg ntxuav thiab cov kuab tshuaj. Nws tuaj yeem tshem tawm cov seem thiab cov khoom tsis huv ntawm qhov chaw ntawm cov khoom siv hluav taws xob, ua kom huv thiab ua haujlwm ntawm cov khoom siv hluav taws xob. Piv txwv li, hauv kev tsim khoom semiconductor, acetonitrile tuaj yeem siv los ntxuav qhov chaw ntawm wafers, tshem tawm cov photoresist residues thiab lwm yam khoom tsis huv.
Txawm hais tias nws muaj ntau yam kev siv, acetonitrile yog volatile thiab lom, thiab nws siv thiab khaws cia xav tau kev ceev faj nruj. Acetonitrile yooj yim ua pa hauv huab cua, yog li nws yuav tsum tau siv rau hauv qhov chaw muaj cua zoo. Tsis tas li ntawd, cov tshuaj ntawm acetonitrile yog qee yam lom, thiab cov khoom siv tiv thaiv tsim nyog yuav tsum tau hnav thaum siv kom tsis txhob kov daim tawv nqaij thiab qhov muag. Hauv kev tsim khoom lag luam, kev siv acetonitrile feem ntau tshwm sim hauv cov kab ke kaw kom txo qis kev cuam tshuam rau ib puag ncig.
Cov Lus Qhia Tshwj Xeeb
| Lub Npe Khoom | Acetonitrile | |||||||||
| Cov Qauv Tshuaj | C2H3N | |||||||||
| Qhov Hnyav Molecular | 41.05 g/mol | |||||||||
| Qhov tsos | Cov kua tsis muaj xim pob tshab | |||||||||
| Qhov Kub Yaj | -45.7°C | |||||||||
| Kub Kub | 81.6°C | |||||||||
| Qhov Ceev | 0.003 g/cm³ | |||||||||
| CAS TSIS MUAJ | 75-05-8 | |||||||||
| Tus lej HS | 2926909090 | |||||||||
| EINECS TSIS MUAJ | 200-835-2 | |||||||||
| Daim Ntawv Thov | Siv rau hauv cov organic synthesis, extraction, tshuaj intermediates, thiab chromatographic analysis. | |||||||||
Daim Ntawv Tswj Xyuas Zoo
| Lub Npe Khoom | Acetonitrile | ||||||
| YAM KHOOM | TXHEEJ TXHEEM (Zoo tshaj plaws) | TUS NQI XEEM (%) | |||||
| Cov chav Chromaticity/HaZen | 10 | 10 | |||||
| Qhov Ceev | 0.5 | 0.003 g/cm³ | |||||
| Kev huv si /% ≥ | 99.9 | 99.94 | |||||
| Dej noo /% ≤ | 0.030 | 0.029 | |||||
| Acetone/% ≤ | 25 | ||||||
| Acrylonitrile /% ≤ | 25 | ||||||
| Ammonia /% ≤ | 6 | 1.1 | |||||
| Acidity (raws li acetic acid) / ≤ | 50 | 1.8 | |||||
| Tooj liab/(mg/kg)≤ | 0.5 | 0.001 | |||||
| Hlau/(mg/kg)≤ | 0.5 | 0.003 g/cm³ | |||||
| Qhov kub npau (ntawm 0.10133 MPa) °C | 81.0-82.0 | 81.6-82.0 | |||||
Hauv kev xaus lus
Hauv kev xaus lus, acetonitrile, ua ib qho khoom siv tseem ceeb hauv cov tshuaj lom neeg thiab cov kuab tshuaj, ua lub luag haujlwm tseem ceeb hauv ntau yam lag luam. Nws tsis yog tsuas yog ua kom muaj txiaj ntsig zoo thiab cov txiaj ntsig ntawm cov tshuaj lom neeg xwb tab sis kuj txhawb nqa kev txhim kho ntawm kev lag luam niaj hnub no. Nrog rau kev nce qib ntawm thev naus laus zis tas mus li, cov kev cia siab ntawm daim ntawv thov rau acetonitrile yuav dav dua.