Zinc chloride thiab nws tseem ceeb rau tib neeg

Zinc chloride yog ib yam tshuaj compound ntawm ob ntsiab - zinc thiab tshuaj - thiab yog denoted los ntawm cov mis ZnCl2. Qhov no cov ntaub ntawv uas yog ib tug dawb muaju.

Zinc chloride yog tsis soluble nyob rau hauv dej - nyob rau hauv chav tsev kub, nws solubility yog 80%. Chloride melts ntawm 322 ° C, thiab boils ntawm 722 ° C.

Zinc chloride yog tau nyob rau hauv ob txoj kev. Thawj Embodiment: zinc los yog nws oxide soluble nyob rau hauv hydrochloric acid, tom qab uas lub resulting sib tov tshuaj twb evaporated. Ob txhais Embodiment: zinc (kua) yog rhuab nyob rau hauv ib tug kwj ntawm cov chlorine.

Hydrolysis tshwm sim nyob rau zinc chloride thiab cov ntawv muaj cov nram qab mis: ZnCl2 + H2O = ZnOHCl + HCl. Nruab nrab, lub tau tov - Acid.

Muaj ntau lawm ntawm zinc chloride yog ua nyob rau hauv ob hom: cov khoom thiab kua. Nyob rau hauv cov khoom daim ntawv no, lub tshuaj yuav tsum yog nyob rau hauv daim ntawv ntawm cov dawb flakes, pub ib tug me ntsis uas tseg tau nyob rau hauv tej yam xim. Nyob rau hauv ib tug tov ntawm tshuaj dawb yuav tsum tsis muaj kob los yog muaj ib lub teeb yellowish Hawj txawm. Cov tshuaj yuav tsum me ntsis clouded.

Nyob rau hauv cov khoom daim ntawv no, qhov loj feem ntawm chloride yuav tsum tsis tsawg tshaj li 97,7%, nyob rau hauv cov tshuaj - 50%. Zinc chloride yog tsis flammable.

Cov tshuaj yeeb dej caw yog heev txaus ntshai rau cov ib puag ncig thiab tib neeg qhov: cov khoom muaj 2 toxicity. Ib tug yeeb tshuaj nyob rau hauv kev sib cuag nrog cov tawv nqaij thiab qog ua kua week ntawm tus txiv neej los yog tsiaj, ua rau voos ntev kev sib cuag nrog cov tawv nqaij ua rau kub yus, corrodes cov ntaub so ntswg. Tsim nyob rau hauv xws li ib tug txoj kev uas yuav kho wounds yog heev yooj yim.

Danger thiab nruab nrab yog tshuaj yeeb dej caw yuav mus hauv lub pa ib ntsuj av. Nyob rau hauv me me koob tshuaj, nws ua rau ib tug laum nyob rau hauv lub qhov ntswg thiab caj pas thiab lub caj pas, hnoos qhuav. Nqus tau pa loj nyiaj ntawm chloride tej zaum yuav muaj dyspnoea thiab thiaj li hu bubbling respiration.

Yog hais tias tshuaj tau txais rau qhov muag, tus neeg pom tau tias heev mob siab heev tej mob. Yog hais tias lub qhov muag tsis rinsed tam sim ntawd, tej zaum yuav muaj tag nrho los yog ib nrab dig muag.

Vim lub toxicity ntawm zinc chloride, thaum lub sij hawm nws thauj mus los thiab kev siv huab ceev faj yuav tsum muaj cai. Crystalline zinc chloride fej nyob rau hauv lub hnab los yog drums ntawm cov hlau, cov tshuaj thauj mus rau tshwj xeeb steel tej kas tham los yog tso tsheb hlau luam.

Thauj khoom yog nqa tawm ob los ntawm cov kev tsheb nqaj hlau thiab txoj kev, thiab hiav txwv thauj. Cov tshuaj yeeb dej caw yog thauj xwb nyob rau hauv kaw compartments thiab txhua lub sij hawm conveying cov luag hauj lwm tus neeg yog yuam ua hauj lwm kom saib xyuas kev ncaj ncees ntawm lub ntim.

Thaum ua hauj lwm nrog zinc chloride, neeg ua hauj lwm yuav tsum tau hnav cov tsim nyog theem ntawm concentration ntawm cov tshuaj yeeb dej caw nyob rau hauv cov huab cua overalls, hnab looj tes, tsom iav qhov muag thiab respirators.

Nyob rau hauv txhua rooj plaub yuav tsum tsis txhob tso cai hu nrog zinc chloride nyob rau hauv dej lub cev thiab dej systems.

Zinc chloride yog siv nyob rau hauv ntau qhov chaw ntawm lawm. Nws yog siv rau cov impregnation ntawm cov ntoo qhov chaw nrog lub hom phiaj ntawm tua (e.g., ntoo sleepers). Qhov no tshuaj yog muab kev koom tes nyob rau hauv lub chaw ua khoom ntawm fiber, ntau dyes, ntau kho hniav cements, paj rwb, zinc cyanide, txhuas thiab txawm vanillin. Ntxiv mus, zinc chloride yog siv tau los ntxuav cov hniav hlau ua ntej painting, chromium plating thiab soldering. Tseem ceeb luag hauj lwm no substance plays nyob rau hauv lub purification ntawm cov roj, thee zauv tsom xam thiab siv thiab ua cov electrochemical roj teeb.

Zinc chloride kuj yog siv rau dyeing paj rwb khoom, tau viscose fibers li ib tug ntsha - thaum galvanizing. Tej zaum qhov kev siv ntawm cov tshuaj yeeb dej caw nyob rau hauv cov tshuaj - raws li ib tug tshuaj uas nres lub rot; teb - raws li micronutrient chiv.

Nyob rau hauv tas li ntawd, zinc chloride, vim hais tias ntawm nws cov ci ntsa iab avidly muaj peev xwm mus nqus dej los ntawm cov huab cua yog siv raws li lub desiccant. Tsis tas li ntawd, nws yog irreplaceable nyob rau hauv hluav taws kub no, raws li yog muab kev koom tes nyob rau hauv qhov siv thiab ua cov hluav taws-resistant ua npuas ncauj thiab impregnated fabrics thiab cov duab los qhia.