Noj qab haus huv, Npaj
Yuav ua li cas yog isopropyl cawv
Ib tug tshuaj compound muaj lub molecular mis CH3CH (OH) CH3. Lwm lub npe - hluav taws roj zeb-2-ol, muab tshuaj ntxuav dej cawv. Cov kua muaj ib tug muaj zog tsw, txais nplaim taws, tsis muaj kob.
Isopropyl cawv muaj ib tug xov tooj ntawm tshuaj zog. Nws yog tau yaj nyob rau hauv dej cawv, ether, chloroform, thiab dej. Qhov no tshuaj tsis hnov mob nrog rau ntsev. Vim cov cuab yeej zoo ploj nyob rau hauv ib lub ntsev-free nruab nrab, isopropyl cawv yooj yim sib cais nyob rau hauv cov dej. Nws suffices mus ntxiv sodium sulfate los yog dog dig rooj ntsev. Qhov no yog nws cov ntsiab sib txawv ntawm methanol thiab ethanol. Lub unofficial lub npe ntawm cov qauv no - "salting". Nws yog nqa tawm rau lub sib cais ntawm lub isopropyl cawv rau hauv khaubncaws sab nraud povtseg.
Isopropyl cawv yog ua nyob rau hauv peb txoj kev:
- Lub indirect co - ib tug tshuaj tiv thaiv ntawm propylene nrog sulfuric acid. Cov no ib tug sib tov ntawm esters sulfate. Lawv kuj ua tau rau kom tau ib lub hom phiaj substance. Khoom tsim los tu yog isopropyl haus dej cawv.
- Direct co yog nqa tawm nyob rau hauv cov kua los yog roj theem. Yuav tsum tam sim no acidic catalysts. Propylene cov tshuaj tiv thaiv yog ua, thiab dej. Ob dab muaj nyob rau hauv isopropyl cawv sib cais ntawm H 2 O.
- Hydrogenation ntawm acetone. Siv lub crude acetone. Nws gidrogeneziruyut siv tooj liab thiab chromium oxides, los yog siv Raney npib tsib xee.
Lub cawv no yog siv nyob rau hauv cov tshuaj raws li ib tug zoo tshuaj tua kab mob. Lawv raug kho nrog ib tug txhaj ntawm qhov chaw. Tsis tas li ntawd nws yog siv raws li ib tug antiseptic. Feem ntau siv raws li ib tug desiccant rau otitis externa.
Isopropyl cawv, tsis txawv ntawm cov pa purity. Nws nyiaj tsawg impurities. Nws nkag yaj resin thiab cov roj tsis ua mob rau tus paintwork. Vim li no, nws twb dav faib nyob rau hauv lub tsheb lag luam. Nws yog feem ntau ntxiv rau kua iav nqus tsev vacuum.
Nyob rau hauv lub chaw soj nstuam ntawm isopropyl cawv yog siv raws li preservative lom keeb kwm. Lawv siv nws rau organics. Nws yog ib tug zoo lwm txoj rau hluavtaws preservatives, xws li formaldehyde.
Qhov twg yuav isopropyl haus cawv? Nyob rau hauv lag luam wholesale warehouses. Muag nws ntau zaus nyob rau hauv loj qhov ntau. Txawm tias nws thoob plaws siv, nws yuav ua rau lom. Yog li ntawd, peb yuav tsum noj kom tag nrho ceev faj thaum uas siv cov dej ntsuab, uantej wipers, shaving muab tshuaj pleev thiab thiaj li nyob.
Lub peculiarity ntawm isopropyl cawv yog hais tias nws tsis txeem los ntawm daim tawv nqaij oranizm. Tab sis nws yog txig absorbed los ntawm lub ntsws thiab lub plab. Nws muaj ib tug depressant ntxim rau cov central lub paj hlwb yog 2 lub sij hawm muaj zog tshaj ethanol. Nyob rau hauv lub siab, nws yog tiav nyob rau hauv acetone, thiab ces tso zis ntawm lub urinary system. Kev kho mob muaj ntawm pais plab lavage. Yog hais tias lub cev qhuav dej tshwm sim los yog kev poob siab, Txoj kev lis ntshav txoj kev kho yog ua nrog kev siv ntawm sodium bicarbonate. Zoo shows nws tus kheej hemodialysis.
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