2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Qhov kub dua, qhov muaj zog dua cov kua qaub kom yaj nws. Ntsuas qhov muaj zog ntawm nitric acid yog siv los ntsuas 14k thiab qis dua. Aqua regia Aqua regia Aqua regia (/ˈreɪɡiə, ˈriːdʒiə/; los ntawm Latin, lit. "regal water" los yog "royal water") yog ib tug sib tov ntawm nitric acid thiab hydrochloric acid, zoo nyob rau hauv ib tug molar ratio ntawm 1:3. https://en.wikipedia.org › wiki › Aqua_regia
Aqua regia - Wikipedia
sib tov ntawm ib feem ntawm nitric acid thiab peb qhov chaw hydrochloric acid, yog siv los ntsuas siab dua karat purity los ntawm cov txheej txheem ntawm kev sib piv thiab tshem tawm.
Koj ua li cas ntsuas kub nrog nitric acid?
Nitric Acid Test
Kub yog cov hlau zoo uas txhais tau tias nws tiv taus corrosion, oxidation thiab acid. Txhawm rau ua qhov kev sim no, rub koj cov kub ntawm lub pob zeb dub kom tawm ntawm qhov pom. Tom qab ntawd siv nitric acid rau lub cim. Cov kua qaub yuav yaj cov hlau hauv paus uas tsis yog kub tiag.
ntsuas kub npaum li cas?
Nyob rau saum nws, ntsuas kua qaub tsis yog ib txwm muaj tseeb. Cov khoom siv kua qaub feem ntau muaj cov khoom siv los ntsuas 10k, 14k, 18k, thiab 22k kub. Cov kua qaub puag ncig mus rau qhov ze tshaj plaws kev daws teeb meem; nws tsis tuaj yeem qhia koj yog tias nws yog 13K lossis 18.5K. Koj yuav tsum ntseeg tias koj cov neeg ua haujlwm yuav paub txhua yam no thiab txhais cov txiaj ntsig tau raug.
Qhov zoo tshaj plaws los ntsuas kub yog dab tsi?
Kev kuaj kos yog txoj hauv kev zoo los txiav txim siab yog tiaskoj cov hniav nyiaj hniav kub yog kub tiag, tab sis nws tuaj yeem ua rau koj cov khoom puas, yog li ceev faj. Txhawm rau ua qhov kev sim no, rub koj cov kub tawm tsam ib daim ntawm cov unglazed ceramic lossis porcelain. Yog tias lub cim sab laug yog xim kub, koj daim yuav zoo li kub tiag.
Kev ntsuas kub yog dab tsi?
Qhov kev ntsuas tseeb tshaj plaws yog siv X-ray fluorescence spectrometers (XRF). Cov tshuab no, uas tuaj yeem raug nqi ntau txhiab daus las, xa X-rays los ntawm cov khoom kuaj.
Pom zoo:
Ntsuas ntsuas ntsuas ntsuas dab tsi?
Speedometer, ntsuas uas qhia tias kev ceev ntawm lub tsheb, feem ntau ua ke nrog cov cuab yeej hu ua odometer uas teev qhov kev ncua deb. Lub ntsuas ntsuas ntsuas ntsuas lub cev yog dab tsi? Lub ntsuas nrawm ntawm lub tsheb nthuav tawm cov ntaub ntawv hais txog qhov nrawm nrawm ntawm koj lub tsheb.
Thaum lub sijhawm ntsuas kev ntsuas thawj zaug yog ntsuas los ntawm kev ntsuas?
Thaum qhov kev ntsuam xyuas thawj zaug, kev ncig yog ntsuas los ntawm kev ntsuam xyuas: pulse zoo, los ntshav sab nraud, thiab tawv nqaij. Yuav ntsuas dab tsi thaum lub sijhawm ntsuas thawj? rau qhov ntawm qhov kev ntsuam xyuas thawj zaug yog:
Cov ntsuas olfactory qhia li cas cov kua qaub thiab cov hauv paus?
Ib qho taw qhia olfactory ua haujlwm ntawm lub hauv paus ntsiab lus tias thaum muaj kua qaub lossis lub hauv paus ntxiv rau nws, ces cov ntxhiab tsw txawv tuaj yeem kuaj pom hauv cov hauv paus whereastsw tsw zoo ib yam hauv cov kua qaub. Qee yam tshuaj uas hloov nws cov ntxhiab hauv Acidic lossis nruab nrab nruab nrab.
Puas kev sib koom ua ke hauv kev ntsuas txhais tau tias kev ntsuas kev ntsuas?
Txawm hais tias kev sib koom ua ke hauv kev ntsuas tsis cuam tshuam nrog cov qauv tshwj xeeb, tseem muaj txiaj ntsig Cauchyrau kev sib koom ua ke hauv kev ntsuas. … Muab ntsuas fn ntawm X, peb hais tias {fn}n∈Z yog Cauchy hauv kev ntsuas yog ∀ ε >
Qhov kev tshwm sim hauv lub neej tseem ceeb ntawm kev ntsuas kev ntsuas kev sib raug zoo twg muaj tus lej ntau tshaj?
Qhov kev tshwm sim ntawm qib siab tshaj yog tuag ntawm tus txij nkawm(nrog tus nqi nruab nrab ntawm 100), txheeb ze rau kev sib yuav, nrog tus nqi nruab nrab ntawm 50, thiab, piv txwv, kev tuag ntawm tus phooj ywg ze, uas tau qhab nia 37. Qhov xwm txheej tseem ceeb ntawm lub neej ntawm Kev Hloov Kho Kev Ntsuas Kev Ntsuas Qhov Ntsuas puas muaj cov lej hloov pauv lub neej ntau tshaj?
