Cov iav iav tuaj yeem tsim los ntawm ntau hom iav, txhua qhov muaj peev xwm sib txawv thiab siv rau ntau lub hom phiaj.Glass muaj ntau yam khoom siv, qhov tseeb tshaj plaws los txheeb xyuas cov khoom iav yog tshuaj ntsuam xyuas, tab sis yuav tsum muaj qee yam kev mob thiab kev siv tshuab. nqa tawm.
Feem ntau, cov khoom iav tuaj yeem txheeb xyuas los ntawm txoj kev yooj yim. Cov hauv qab no yog cov lus qhia yooj yim rau nws cov txheej txheem kev txheeb xyuas, Kuv vam tias yuav muab qee qhov kev pab rau koj.
Kev kos duab
Cov khoom ntawm iav yog qhov txawv los ntawm qhov sib txawv expansion coefficient ntawm iav. Cua sov ob hom iav nrog cov khoom sib txawv nrog cov khoom siv teeb ua rau nws sib koom ua ke, thiab thaum cua sov kub nce mus txog lub iav softening kub, lub iav yog kos rau hauv cov hlau zoo, vim tias cov radian tsim los ntawm qhov sib txawv coefficient ntawm expansion yog txawv, coefficient ntawm expansion. nrog loj radian yog loj, nws yog mos iav uas yog, nws yog tawv iav conversely.
Hydrofluoric acid txoj kev corrosion
Siv cov ntaub ntawv hlau los ua cov cim rau ntawm lub khob nrog cov khoom sib txawv kom paub qhov txawv. Tom qab ntawd poob ib tee ntawm hydrofluoric acid nrog ntim feem ntawm 1% ntawm lub cim. Yog hais tias cov kua tee tshwm pos huab, nws yog sodium iav los yog potassium iav.
Txoj kev nplaim taws
Yog hais tias cov nplaim yog daj los yog daj me ntsis, nws yog sodium iav. Yog hais tias nws yog ntshav, nws yog poov tshuaj iav.
Cua sov txoj kev
Tshav kub lub khob ntawm lub tshuab nqus dej cawv thiab nws yuav sai sai thiab khoov rau hauv cov iav mos, thaum lub khob sodium yuav muag thiab ua kom cov nplaim taws tshwm daj. Lead iav kuj softens thiab darkens yooj yim thaum rhuab. Cov iav tawv tsis yooj yim rau softened los ntawm tshav kub, txawm tias nws yog softened los ntawm cua sov rau lub sij hawm ntev, tab sis nws yuav nyuaj sai sai thaum nws tawm ntawm cov nplaim taws.
Kev ntsuas qhov muag
Los ntawm kev soj ntsuam cov xim ntawm qhov kawg ntawm lub iav raj kom paub qhov txawv ntawm cov khoom siv iav, feem ntau cov iav mos yog turquoise, iav tawv feem ntau yog daj lossis xim dawb, lub teeb xim ntawm cov iav, qhov sib dua ntawm qhov hnyav. Txoj kev pom kev yog feem ntau paub los ntawm cov neeg ua haujlwm paub txog.
Laboratory glassware tsim los ntawm WUBOLAB (Laboratory glassware chaw tsim tshuaj paus) txais 3.3 High Borosilicate iav, tau kawg, nws kuj tuaj yeem siv raws li qhov xav tau ntawm cov neeg siv khoom.
