Cov hmoov txhuas yog cov khoom siv tshuaj, nws cov cim tshuaj yog Pb (Latin Plumbum; txhuas, nrog tus lej atomic ntawm 82, yog qhov loj tshaj plaws uas tsis muaj hluav taws xob los ntawm qhov hnyav atomic.
Lead yog cov hlau mos thiab malleable tsis muaj zog, muaj kuab lom, thiab cov hlau hnyav.Thawj xim ntawm cov hlau lead yog xiav-dawb, tab sis nyob rau hauv cov huab cua lub nto yog sai sai npog los ntawm ib tug dull grey oxide.Nws tuaj yeem siv rau hauv kev tsim kho, cov roj ntsha lead-acid, warheads, artillery shells, vuam cov ntaub ntawv, nuv ntses iav, nuv ntses iav, hluav taws xob tiv thaiv cov ntaub ntawv, trophies thiab ib co alloys, xws li txhuas-tin alloys rau hluav taws xob vuam.Cov hmoov txhuas yog cov khoom siv hlau uas tuaj yeem siv los ua cov khoom siv tiv thaiv sulfuric acid corrosion, ionizing hluav taws xob, roj teeb thiab lwm yam.Nws cov alloy tuaj yeem siv rau hom, bearing, cable npog, thiab lwm yam, thiab tuaj yeem siv rau cov khoom siv ntaus kis las.
Cov hauv qab no yog cov ntaub ntawv tseem ceeb ntawm txhuas rau koj siv:
| Suav npe | Qian | Boiling point | 1749 ° C |
| English npe | Coj | Dej solubility | Insoluble hauv dej |
| Lwm lub npe | Txuas, saw, poj niam, lub laub dej, dub tin, kub, lapis kub, kub hauv dej | ceev | 11.3437 g/cm ³ |
| Tshuaj formula | Pb | tsos | Silvery dawb nrog bluish tint |
| Molecular hnyav | 207.2 ib | Risk piav qhia | venom |
| CAS ID | 7439-92-1 : kuv | Tshwj xeeb kub muaj peev xwm | 0.13 kJ / (kg·K) |
| Fusing point | 327.502 ° C | tawv | 1.5 |
Lus Cim: Cov hmoov txhuas nws tus kheej yog tshuaj lom, tab sis nws tsis muaj tshuaj lom thaum ua tiav rau hauv cov khoom siv hluav taws xob ntawm cov ntawv txhuas, txhuas qhov rooj, cov khoom siv lead ua thiab cov hlau lead.
Thaum Lub Yim Hli 31, 2023, nrog kev hloov pauv ntawm ib puag ncig, tus nqi ntawm cov hlau lead tseem nce ntxiv, thiab cov hauv qab no yog daim duab ntawm Yangtze River non-ferrous Hlau network rau txhua tus.
Post lub sij hawm: Sep-05-2023
