Noble hlau muaj xws li yim cov hlau: KUB (AU), Plam), Rho tawm (Rhidium (OS), thiab ruthenium (ru).
1. KUB (AU)
Tshuaj lom neeg ruaj khov: nws muaj cov tshuaj ruaj khov heev. Nws tsis hnov mob nrog cov tshuaj uas muaj xws li cov pa thiab dej ntawm chav tsev kub. Nws tsis yog yooj yim corroded los ntawm tshuaj lom neeg xws li cov kua qaub thiab alkalis. Nws tuaj yeem tsuas yog yaj nyob rau hauv ob peb lub zog oxidizing cov kua qaub xws li aqua regia.
Cov Khoom Siv Lub Cev: Nws yog Goldall nyob rau hauv lub cev, muaj cov xim hlau, muaj qhov ua kom sov thiab kev ua haujlwm loj, yog lub ntsej muag zoo ntawm 1964.43 degree.
2. Platinum (PT)
Tshuaj lom neeg ruaj khov: nws tau muaj tshuaj lom neeg muaj zog heev thiab muaj zog corrosion tsis kam. Nws tsis hnov mob nrog cov tshuaj feem ntau ntawm chav sov. Nws tuaj yeem tiv thaiv txoj kev yaig ntawm acids thiab alkalis. Nws tsuas yog maj mam yaj hauv aqua regia thiab molten alkali.
Cov Khoom Siv Lub Cev: Nws muaj Silvery Dawb tsos, lub ntsej muag tawv, zoo nkauj ntawm 2172 degree, thiab siab catalytic kev ua si.
3. Palladium (PD)
Tshuaj lom neeg cov khoom: Cov tshuaj zoo ruaj khov, tiv taus rau corrosion los ntawm organic acids, alkalis thiab ntsev, tab sis solubs hauv nitric acid thiab aqua regia. Nyob rau hauv qee qhov kev mob, Palladium tuaj yeem hnov mob nrog oxygen, hydrogen, thiab lwm yam, thiab muaj cov khoom siv hydrogen ua tau zoo.
Cov Khoom Siv Lub Cev: Silvery Dawb hauv cov xim, yog xim hlau lus, zoo nkauj, ntau dua ntawm 12.0,zuity resisticity) ntau dua li platinum, thiab me me tiv taus kub.
Catalytic kev ua si: nws muaj cov khoom siv catalytic zoo heev thiab feem ntau siv los ua kev tshuaj ntsuam hauv cov tshuaj lom neeg. Nws tuaj yeem ua kom nrawm cov tshuaj tiv thaiv cov tshuaj tiv thaiv thiab txhim kho kev xaiv thiab hloov dua siab tshiab ntawm cov tshuaj tiv thaiv.
4. Rhodium (Rh)
Tshuaj lom neeg ruaj khov: nws muaj cov tshuaj ruaj khov thiab oxidation tsis kam. Nyob rau hauv ib txwm muaj xwm txheej, nws tsis hnov mob nrog cov tshuaj uas feem ntau thiab tuaj yeem tiv thaiv cov yaig ntawm cov pa, acid, thiab lwm yam kub.
Lub cev cov khoom siv lub cev: silvery dawb, nws yog xim hlau thiab nkig tsis kam, ntom ntom ntawm 1966 degree, ib qho ntawm feem ntau corrosion-resistant hlau.
Catalytic kev ua tau zoo: nws yog ib lub teb ntawm cov roj tsheb ua kom zoo li cov pa roj carbon monome xws li cov pa roj carbon monides rau hauv cov pa roj carbon dioxide thiab nitrogen.
5. Iridium (IR)
Tshuaj lom neeg ruaj khov: nws yog qhov ruaj khov kho thiab ib qho ntawm feem ntau corrosion-resistant hlau. Nws tsis hnov qab nrog cov acids dog dig thiab alkalis, thiab yuav luag tsis muaj qhov tseem ceeb hauv Aqua Regia. Nws tsuas tsuas tau hnov mob nrog qee cov oxidants muaj zog thaum muaj kub.
Cov Khoom Siv Lub Cev: Nws yog silvery dawb, tawv ncauj, muaj qhov sib txawv ntawm 24,56 degree, muaj qhov siab dua, muaj txiaj ntsig zoo nkauj, muaj siab pom kev thiab hnav zoo.
Kev kub siab stability: nws tseem tuaj yeem tswj lub cev zoo thiab tshuaj lom neeg nyob rau hauv cov khoom kub thiab cov khoom siv sib xyaw ua ke, xws li kev sib txuas ntawm cov tshuab hluav taws xob.
6. Nyiaj (AG)
Cov khoom siv lub cev: Nws muaj xim dawb thiab kaj metallic lus. Nws muaj cov hluav taws xob zoo tshaj plaws thiab thermal condactivity ntawm txhua cov hlau. Nws tseem muaj kev du ncauj thiab hloov tau zoo. Nws qhov ntom ntom yog 10.5 g / cm3, thiab nws lub poelting point yog 961.93 degree.
Photosensitivity: Nws muaj cov duab zoo yees duab. Nyiaj Halides (xws li Silver Chloride, Silver Bromide, thiab lwm yam) yuav decompose hauv qab teeb. Cov cuab yeej no ua rau nws dav siv hauv kev yees duab thev naus laus zis.
7. Osmium (OS)
Tshuaj lom neeg cov khoom: Cov tshuaj lom neeg muaj qhov ruaj khov, tab sis nws tuaj yeem hnov mob nrog cov pa, Halogens, thiab lwm yam. Nws cov oxide muaj cov tshuaj oxidizing muaj zog.
Cov Khoom Siv Lub Cev: Nws yog xiav-grey thiab muaj xim hlau lug. Nws yog cov hlau nrog qhov ceev tshaj plaws. Nws qhov ceev yog 22.61 g / cm3 thiab nws lub poelting point yog 3033 degree. Nws yog qhov nyuaj thiab nkig, nrog siab tawv thiab hnav tsis kam.
Volatilization: OsMium Tetraoxide (oso₄) yog qhov tsis sib xws thiab muaj kuab heev, uas txwv nws daim ntawv thov rau qee yam.
8. Ruthenium (ru)
Tshuaj lom neeg ruaj khov: nws tau siv tshuaj lom neeg, tsis muaj tshuaj lom neeg nyob rau ntawm chav sov, tab sis tuaj yeem ua kom muaj pes tsawg ntawm cov pa, Halogens, thiab lwm yam thaum muaj cua sov.
Cov khoom siv lub cev: Nws yog nyiaj-grey, muaj ib qho nyuaj ntawm kev ntxhib, muaj qhov sib txawv ntawm 2334 degree, thiab muaj hluav taws xob zoo thiab thermal ua haujlwm.
Catalyticic Performance: Nws muaj kev ua tau zoo catalytic thiab tuaj yeem siv ua catalyst hauv qee cov tshuaj lom neeg. Nws tuaj yeem txhim kho kev ua tau zoo thiab xaiv cov tshuaj tiv thaiv thiab feem ntau siv hauv Petrochemical, Electronics thiab lwm thaj teb.
Palladium alloy ntawv nyiaj ntawv
Rhodium Qws
Platinum xaim
Platinum Iridium Kev Kho Mob Hlau
Kub-Plated Tungsten Hlau
Iridium Sawb