Lub raj mis volumetric yog ib qho khoom siv ntau. Yuav ua li cas txiav txim seb lub khob ntim ntim khoom puas tsim nyog? Cia peb muab ib daim ntawv yooj yim rau txhua tus kom txhua tus tuaj yeem txiav txim tau yooj yim seb lub khob ntim khoom puas tsim nyog. Koj tuaj yeem sau lub thawv nrog dej thiab kos nrog qhov sib npaug. Tus qauv muaj peev xwm ntawm lub raj mis muaj peev xwm

Cov kua ntxhua khaub ncaws, hu ua detergent lossis tshuaj pleev, feem ntau yog siv rau cov iav iav uas tsis yooj yim rau txhuam nrog txhuam, xws li burettes, pipettes, volumetric flasks, retorts, thiab lwm yam. Nws kuj yog siv rau ntxuav crapware uas tsis tau siv rau. ntev thiab fouling uas txhuam tsis tuaj yeem ntxuav. Txoj cai

Lub burette yog ib qho tseem ceeb ntawm cov iav ntim khoom hauv cov chaw kuaj mob, tsim los rau cov titration thiab ntsuas cov kua, kom ntseeg tau qhov tseeb hauv kev sim tshuaj. Cov khoom siv tseem ceeb: Lub chaw kuaj burette yog dab tsi? Lub Laboratory Burette yog cov iav ntim ntim siv los xa cov kua dej tsis raug. Nws yog ua los ntawm ib tug slender thiab uniform iav raj nrog

1 、 Muaj peb yam hauv tag nrho. (1) Kev ntsuas ntsuas nrog cov khoom hnyav thiab cov hlab ntsha ntsuas cov tshuaj ntim (2) Cov txheej txheem kev daws teeb meem muaj peev xwm titration (3) Cov ntsuas ntsuas kom raug txiav txim siab qhov kawg ntawm qhov kawg. Muaj plaub pawg, acid-base titration, complexometric titration, redox titration, thiab nag lossis daus titration. Txoj kev acid-base titration yog ib txoj kev tsom xam titration raws li

Nyob rau hauv rooj plaub koj xav tau cov ntaub ntawv lossis muaj kev tsis ntseeg, thov hu rau WUBOLAB, lub chaw tsim khoom iav iav.

Xaiv txoj kev ntsuas tsim nyog, nce tus naj npawb ntawm cov kev ntsuas sib npaug, thiab tshem tawm cov kev ua yuam kev hauv qhov kev xeem. Txhawm rau ua kom qhov tseeb siab, thawj zaug yuav tsum xav tau siab precision, tab sis siab precision, tsis txhais hais tias nws qhov tseeb kuj yog siab, vim tias tej zaum yuav muaj qhov yuam kev hauv kev ntsuas, nws tuaj yeem hais tias.

Yuav ua li cas qhib lub raj mis reagent nyob rau lub caij ntuj sov? Cov tshuaj khaws cia hauv lub raj mis hloov li cas rau lub sijhawm ntev? Cov tshuaj yuav muaj sodium, calcium, silicate impurities los yog ib co ions nyob rau hauv cov tshuaj yuav adsorbed rau ntawm iav nto kom txo cov concentration ntawm ions nyob rau hauv cov tshuaj. Yuav ua li cas

Volumetric flasks feem ntau yog siv los tsim cov kev daws teeb meem ntawm qee qhov concentration. Nws yog lub caj dab slender, pear-puab tiaj tiaj-bottomed iav raj mis nrog rau hauv av ntsaws. Lub bottleneck yog engraved nrog ib tug cim. Thaum cov kua hauv lub raj mis nce mus txog cov kab cim ntawm qhov ntsuas kub, nws qhov ntim yog tus naj npawb ntawm ntim tau qhia

Ua ntej, lub luag haujlwm A burette yog lub ntsuas ntsuas uas ntsuas qhov ntim ntawm cov txheej txheem kev daws teeb meem thaum lub sijhawm ua haujlwm titration. Muaj cov cim zuam thiab qhov tseem ceeb ntawm phab ntsa ntawm burette. Qhov ntsuas qhov tsawg kawg nkaus yog 0.1 ml. Qhov ntsuas "0" yog nyob rau sab saum toj, thiab qhov tseem ceeb ntawm sab saum toj mus rau hauv qab yog los ntawm

1. Cov xwm txheej twg yuav tsum tau siv los ua tus qauv ntsuas? Teb: (1) High purity, siab tshaj 99.9% (2) Cov khoom xyaw thiab cov tshuaj formula yog zoo ib yam (3) Zoo stability, tsis yooj yim rau nqus dej, tsis yooj yim oxidized los ntawm huab cua, thiab lwm yam. (4) Molar mass yog loj, hnyav. yog qhov loj, thiab qhov hnyav yuam kev tuaj yeem raug txo. 2. Dab tsi yog