Organic kev sim iav tuaj yeem poob rau hauv ob pawg: kev sib tsoo thiab cov iav dav dav raws li tus qauv ntawm nws lub qhov ncauj ntsaws thiab sib tsoo.
Txij li cov txheej txheem sib tsoo iav tuaj yeem txuas rau ib leeg, lawv siv sijhawm txuag thiab nruj thiab nyab xeeb, thiab nws yuav maj mam hloov cov khoom siv iav dav dav.
Peb yuav tsum tau ua tib zoo saib xyuas thaum siv iav. Glassware Instruments uas yooj yim rau swb (xws li puag ncig hauv qab flasks) yuav tsum tsis txhob muab tso rau sib tshooj kom tsis txhob tawg.
General iav
Tsuas yog ob peb lub khob iav, xws li cov raj ntsuas thiab cov beakers, feem ntau tsis tuaj yeem ua kom sov ncaj qha nrog hluav taws. Conical flasks tsis siab resistant thiab tsis tuaj yeem siv rau decompression. Cov iav iav tuab (xws li lub tshuab nqus tsev lim dej) tsis muaj cua sov thiab yog li tsis tuaj yeem ua kom sov. Cov thawv ntim dav dav (xws li beakers) tsis tuaj yeem khaws cov kuab tshuaj organic uas tsis muaj zog.
Tom qab lub khob iav nrog lub piston tau ntxuav lawm, ib daim ntawv yuav tsum muab tso rau nruab nrab ntawm lub piston thiab qhov chaw sib tsoo kom tsis txhob lo. Yog tias nws daig, siv cov roj nplua nyeem lossis cov kuab tshuaj organic nyob ib ncig ntawm lub nplhaib sib tsoo, tom qab ntawd tshuab cua kub nrog lub tshuab ziab plaub hau, lossis boil nws nrog dej thiab tom qab ntawd coj mus rhaub lub ntsaws nrog cov ntoo thaiv kom loosen nws.
Tsis tas li ntawd, nws tsis tuaj yeem siv tus pas ntsuas kub los ua ib qho kev sib tw lossis ntsuas qhov kub siab tshaj qhov ntsuas. Tus pas ntsuas kub yuav tsum maj mam txias tom qab siv. Tsis txhob yaug tam sim nrog dej txias kom tsis txhob tawg.
Rau cov organic chemistry thwmsim, nws yog qhov zoo tshaj plaws los siv cov qauv hauv av iav ntsuas. Cov cuab yeej no tuaj yeem txuas nrog tib tus naj npawb ntawm cov chaw nres nkoj sib tsoo kom tshem tawm qhov xav tau rau kev ntsaws thiab qhov drilling, thiab tshem tawm cov kev sib kis ntawm cov reactants lossis cov khoom los ntawm cork lossis roj hmab stopper.
Qhov loj ntawm cov qauv hauv av iav feem ntau yog qhia los ntawm tus lej, uas yog cov stain ntawm lub ntsaws (los yog roj hmab stopper). Qhov loj ntawm cov qauv hauv av iav feem ntau yog qhia los ntawm tus lej, uas yog millimeter tus lej ntawm qhov siab tshaj plaws ntawm txoj kab sib tsoo.
Feem ntau siv yog 10, 14, 19, 24, 29, 34, 40, 50 thiab lwm yam. Qee lub sij hawm nws kuj tau sawv cev los ntawm ob pawg ntawm cov lej, thiab lwm cov lej qhia txog qhov ntev ntawm qhov sib tsoo. Piv txwv li, 14/30 txhais tau hais tias txoj kab uas hla ntawm qhov sib tsoo yog 14 hli ntawm qhov siab tshaj plaws thiab qhov ntev ntawm qhov sib tsoo lub qhov ncauj yog 30 hli.
Tib tus naj npawb ntawm kev sib tsoo thiab sib tsoo plugs tuaj yeem txuas nrog nruj. Qee zaum ob lub khob iav, yog tias lawv tsis tuaj yeem txuas ncaj qha vim muaj cov lej sib tsoo sib txawv, tuaj yeem txuas tau los ntawm kev sib tsoo cov lej sib txawv (los yog lub taub hau loj) [saib daim duab 2.2(9)].
Lus Cim: Tus naj npawb ntawm cov kev sib tsoo series feem ntau yog qhia hauv cov lej, uas txawv me ntsis ntawm txoj kab uas hla ntawm qhov loj kawg ntawm qhov sib tsoo lub khob hliav qab. Cov hauv qab no yog kev sib piv ntawm cov xov tooj ntawm lub nplhaib sib tsoo thiab txoj kab uas hla ntawm qhov kawg loj.
TSIS MUAJ. 10 14 19 24 29 34 40 ib
Sab nraud txoj kab uas hla (mm) 10.0 14.5 18.8 24.0 29.2 34.5 40.0
Thov nco ntsoov thaum siv cov iav txheem txheem:
(1) Lub qhov ncauj sib tsoo yuav tsum huv. Yog tias muaj cov khoom khib nyiab, qhov sib tsoo lub qhov ncauj yuav tsis txuas nrog nruj thiab ua rau cov pa tawm. Yog tias muaj cov khoom tawv, nws yuav ua rau kev sib tsoo.
(2) Ntxuav thiab disassemble tom qab siv. Txwv tsis pub, yog tias nws muab tso rau lub sijhawm ntev, kev sib koom ua ke ntawm lub nplhaib sib tsoo feem ntau yuav lo thiab nws nyuaj rau disassemble.
(3) Tsis tas yuav siv cov roj nplua nyeem rau kev sib tsoo dav dav kom tsis txhob muaj kev sib kis ntawm cov reactants lossis cov khoom. Yog tias muaj lub hauv paus muaj zog hauv cov tshuaj tiv thaiv, cov roj nplua nyeem yuav tsum tau siv los tiv thaiv kev sib koom ua ke ntawm kev sib tsoo ntawm kev sib tsoo vim alkali corrosion thiab tsis tuaj yeem disassembled. Thaum lub tshuab nqus tsev distillation, lub qhov ncauj sib tsoo yuav tsum tau coated nrog lub tshuab nqus tsev roj kom tsis txhob muaj cua nkag.
(4) Thaum txhim kho cov txheej txheem sib tsoo iav, nws yuav tsum tau ua kom ntseeg tau tias nws yog qhov tseeb, huv si, thiab ruaj khov kom cov kev sib tsoo ntawm kev sib tsoo tsis raug rau kev ntxhov siab ntawm skewing, txwv tsis pub lub ntsuas yuav yooj yim tawg, tshwj xeeb tshaj yog thaum cua sov, lub khob iav yog rhuab thiab kev ntxhov siab ntau dua.
Yog tias koj muaj lus nug, thov koj xav tiv tauj nrog peb Laboratory glassware chaw tsim tshuaj paus WUBOLAB
