Calcium chloride yog ntsev tsim los ntawm chloride ions thiab calcium ions.Anhydrous calcium chloride muaj lub zog nqus dej noo, siv los ua cov khoom desiccant rau ntau yam khoom, ntxiv rau txoj kev plua plav, av txhim kho, refrigerant, dej purification tus neeg saib xyuas, tus neeg sawv cev muab tshuaj txhuam.Nws yog dav siv tshuaj reagent, tshuaj raw khoom, khoom noj khoom haus additives, pub additives thiab raw cov ntaub ntawv rau kev tsim cov hlau calcium.
Lub cev muaj zog ntawm calcium chloride
Calcium chloride yog xim tsis muaj xim cubic siv lead ua, dawb los yog dawb, granular, honeycomb block, spheroid, irregular granular, hmoov.Melting point 782 ° C, ntom 1.086 g / mL ntawm 20 ° C, boiling point 1600 ° C, dej solubility 740 g / L.Me ntsis tshuaj lom, tsw tsw, me ntsis iab saj.hygroscopic heev thiab yooj yim deliqued thaum raug huab cua.
Yooj yim soluble hauv dej, thaum tso tawm ntau cov cua sov (calcium chloride dissolution enthalpy ntawm -176.2cal / g), nws cov tshuaj aqueous yog me ntsis acidic.Soluble hauv cawv, acetone, acetic acid.Reacting nrog ammonia los yog ethanol, CaCl2·8NH3 thiab CaCl2·4C2H5OH complexes tau tsim, feem.Thaum tsis tshua muaj kub, cov tshuaj crystallizes thiab precipitates raws li ib tug hexahydrate, uas yog maj yaj nyob rau hauv nws tus kheej crystalline dej thaum rhuab mus rau 30 ° C, thiab maj mam poob dej thaum rhuab mus rau 200 ° C, thiab ua ib tug dihydrate thaum rhuab mus rau 260 ° C. , uas dhau los ua dawb porous anhydrous calcium chloride.
Anhydrous calcium chloride
1, lub cev thiab tshuaj lom neeg lub cev: tsis muaj kob tsis muaj kob siv lead ua, dawb los yog tawm-dawb porous block lossis granular khoom.Tus txheeb ze ceev yog 2.15, lub melting point yog 782 ℃, lub boiling point yog siab tshaj 1600 ℃, lub hygrhygability yog heev muaj zog, yooj yim rau delix, yooj yim rau yaj nyob rau hauv dej, thaum tso tawm ntau heev tshav kub, tsw, me ntsis iab saj, Cov tshuaj aqueous yog me ntsis acidic, soluble hauv cawv, acrylic vinegar, acetic acid.
2, siv cov khoom siv: Nws yog tus neeg sawv cev ua ntej rau kev tsim cov xim pas dej pigments.Kev tsim cov nitrogen, acetylene gas, hydrogen chloride, oxygen thiab lwm yam roj desiccant.Cawv, ethers, esters thiab acrylic resins yog siv los ua tus neeg ua kom lub cev qhuav dej, thiab lawv cov kev daws teeb meem aqueous yog cov tub yees tseem ceeb rau cov tub yees thiab tub yees.Nws tuaj yeem ua kom lub zog ntawm cov pob zeb ua kom muaj zog, ua kom txias tsis kam ntawm cov cement mortar, thiab yog ib qho tshuaj tiv thaiv zoo heev.Siv los ua tus neeg saib xyuas kev tiv thaiv rau txhuas magnesium metallurgy, refining tus neeg saib xyuas.
Flake calcium chloride
1, lub cev thiab tshuaj lom neeg cov khoom: tsis muaj xim siv lead ua, cov khoom no yog dawb, dawb-dawb siv lead ua.iab saj, muaj zog deliquescent.
Nws cov txheeb ze ceev yog 0.835, yooj yim soluble nyob rau hauv dej, nws cov aqueous tov yog nruab nrab los yog me ntsis alkaline, corrosive, soluble nyob rau hauv cawv thiab insoluble nyob rau hauv ether, thiab dehydrated rau anhydrous teeb meem thaum rhuab mus rau 260 ℃.Lwm yam tshuaj muaj zog zoo ib yam li anhydrous calcium chloride.
2, muaj nuj nqi thiab siv: flake calcium chloride siv ua tub yees;Antifreeze tus neeg sawv cev;Molten dej khov los yog daus;nplaim retardants rau xov thiab xov paj ntaub ntaub;Ntoo preservatives;Roj hmab ntau lawm ua tus neeg sawv cev folding;Mixed starch yog siv los ua tus neeg sawv cev gluing.
Calcium chloride aqueous kua
Calcium chloride tov muaj cov yam ntxwv ntawm conductivity, qis qhov chaw txias dua dej, cua sov dissipation nyob rau hauv kev sib cuag nrog dej, thiab muaj zoo adsorption muaj nuj nqi, thiab nws tsis tshua muaj freezing point yuav siv tau nyob rau hauv ib tug ntau yam ntawm industrial manufacturing thiab pej xeem chaw.
Lub luag haujlwm ntawm calcium chloride tov:
1. Alkaline: Calcium ion hydrolysis yog alkaline, thiab hydrogen chloride yog volatile tom qab chloride ion hydrolysis.
2, conduction: muaj ions nyob rau hauv cov kev daws teeb meem uas tuaj yeem txav tau yooj yim.
3, lub freezing point: calcium chloride tov lub freezing point yog qis dua dej.
4, boiling point: calcium chloride aqueous tov boiling point yog siab tshaj dej.
5, evaporation crystallization: calcium chloride aqueous tov evaporation crystallization kom nyob rau hauv ib qho chaw uas muaj hydrogen chloride.
Desiccant
Calcium chloride tuaj yeem siv ua desiccant lossis dehydrating tus neeg sawv cev rau cov pa roj thiab cov kua dej organic.Txawm li cas los xij, nws tsis tuaj yeem siv los ua kom qhuav ethanol thiab ammonia, vim tias ethanol thiab ammonia hnov mob nrog calcium chloride los ua cawv complex CaCl2·4C2H5OH thiab ammonia complex CaCl2·8NH3, raws li.Anhydrous calcium chloride kuj tuaj yeem ua rau hauv cov khoom siv hauv tsev siv los ua tus neeg saib xyuas huab cua, anhydrous calcium chloride ua tus neeg saib xyuas dej tau raug pom zoo los ntawm FDA rau kev hnav khaub ncaws thawj zaug, nws lub luag haujlwm yog xyuas kom lub qhov txhab qhuav.
Vim tias calcium chloride yog nruab nrab, nws tuaj yeem qhuav acidic lossis alkaline gases thiab cov kua dej organic, tab sis kuj tseem nyob hauv chav kuaj kom ua cov pa me me xws li nitrogen, oxygen, hydrogen, hydrogen chloride, sulfur dioxide, carbon dioxide, nitrogen dioxide, thiab lwm yam. ., Thaum ziab cov roj tsim tawm.Granular anhydrous calcium chloride feem ntau yog siv los ua desiccant los ua cov kav dej kom qhuav, thiab cov algae loj heev (los yog seaweed tshauv) qhuav nrog calcium chloride tuaj yeem siv rau kev tsim cov dej qab ntsev.Qee lub tsev dehumidifiers siv calcium chloride los nqus dej los ntawm huab cua.
Cov anhydrous calcium chloride yog kis rau ntawm txoj kev xuab zeb, thiab cov cuab yeej hygroscopic ntawm anhydrous calcium chloride yog siv los ua kom cov dej noo nyob hauv huab cua thaum huab cua noo qis dua li cov dej lwg kom txoj kev ntub dej, thiaj li tswj tau. hmoov av ntawm txoj kev.
Deicing tus neeg sawv cev thiab da dej txias
Calcium chloride tuaj yeem txo qhov dej khov ntawm cov dej khov, thiab kev sib kis ntawm txoj kev tuaj yeem tiv thaiv kom khov thiab deicing snow, tab sis cov dej ntsev los ntawm cov daus thiab dej khov tuaj yeem ua rau cov av thiab cov nroj tsuag nyob rau hauv txoj kev thiab ua rau cov pob zeb ua kom puas.Calcium chloride tov kuj tuaj yeem sib xyaw nrog cov dej khov qhuav los npaj lub da dej txias txias.Cov dej khov qhuav yog ntxiv rau cov tshuaj brine hauv cov khoom siv kom txog thaum cov dej khov tshwm hauv qhov system.Qhov ntsuas kub ruaj khov ntawm chav da dej txias tuaj yeem tswj tau los ntawm ntau hom thiab cov ntsiab lus ntawm cov ntsev ntsev.Calcium chloride feem ntau yog siv los ua cov khoom siv ntsev, thiab qhov yuav tsum tau muaj qhov kub thiab txias yog tau los ntawm kev kho cov concentration, tsis yog vim calcium chloride pheej yig thiab yooj yim kom tau, tab sis kuj vim qhov kub ntawm eutectic ntawm calcium chloride tov (uas yog, lub kub thaum cov tshuaj yog tag nrho cov condensed los ua granular ice ntsev hais) yog heev tsawg, uas muaj peev xwm ncav cuag -51.0 ° C, yog li ntawd lub adjustable kub ntau yam yog los ntawm 0 ° C mus rau -51 ° C. Txoj kev no yuav tsum tau paub nyob rau hauv Dewar. fwj nrog cov nyhuv rwb thaiv tsev, thiab tseem tuaj yeem siv rau hauv cov thawv yas dav dav los tuav cov da dej txias thaum lub ntim ntawm Dewar fwj yog txwv thiab ntau cov ntsev ntsev yuav tsum tau npaj, nyob rau hauv cov ntaub ntawv no qhov kub thiab txias kuj tseem ruaj khov.
Raws li qhov chaw ntawm calcium ions
Ntxiv calcium chloride rau hauv pas dej da dej tuaj yeem ua rau cov dej hauv pas dej ua rau pH tsis zoo thiab ua kom cov tawv nqaij ntawm cov dej hauv pas dej ua ke, uas tuaj yeem txo qhov kev yaig ntawm phab ntsa pob zeb.Raws li Le Chatelier lub hauv paus ntsiab lus thiab cov nyhuv isoionic, ua kom cov ntsiab lus ntawm calcium ions nyob rau hauv lub pas dej ua ke slows down lub dissolution ntawm calcium tebchaw uas yog ib qho tseem ceeb rau cov pob zeb vaj tse.
Ntxiv calcium chloride rau hauv dej ntawm Marine thoob dej yug ntses ua rau kom muaj cov calcium uas bioavailable hauv dej, thiab mollusks thiab coelintestinal tsiaj tsa hauv thoob dej yug ntses siv nws los tsim cov calcium carbonate shells.Txawm hais tias calcium hydroxide los yog calcium reactor tuaj yeem ua tiav tib lub hom phiaj, ntxiv calcium chloride yog txoj kev ceev tshaj plaws thiab muaj qhov cuam tshuam tsawg tshaj plaws ntawm pH ntawm cov dej.
Calcium chloride rau lwm yam kev siv
Lub dissolving thiab exothermic xwm ntawm calcium chloride ua rau nws siv nyob rau hauv tus kheej-kub cov kaus poom thiab cua sov pads.
Calcium chloride tuaj yeem pab txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pob zebAnhydrous calcium chloride tuaj yeem muab qee qhov dej noo rau pob zeb vim nws cov khoom hygroscopic.
Nyob rau hauv kev lag luam roj av, calcium chloride yog siv los ua kom muaj qhov ntom ntom-dawb brine, thiab tseem tuaj yeem muab ntxiv rau lub aqueous drilling cov kev nthuav dav ntawm av nplaum.Nws yog siv los ua ib qho flux los txo qhov melting point nyob rau hauv tus txheej txheem ntawm kev tsim sodium hlau los ntawm electrolytic melting ntawm sodium chloride los ntawm cov txheej txheem Davy.Thaum cov ceramics raug tsim, calcium chloride yog siv los ua ib qho ntawm cov khoom siv, uas yuav tso cai rau cov av nplaum raug tshem tawm hauv cov tshuaj, kom cov av nplaum tau yooj yim siv thaum grouting.
Calcium chloride kuj yog ib qho additive nyob rau hauv yas thiab tua hluav taws, raws li ib tug lim pab nyob rau hauv cov dej khib nyiab, raws li ib tug additive nyob rau hauv blast furnaces los tswj cov aggregation thiab adhesion ntawm raw cov ntaub ntawv kom tsis txhob muaj kev sib haum xeeb ntawm tus nqi, thiab raws li ib tug diluent nyob rau hauv cov ntaub softeners. .
Post lub sij hawm: Mar-19-2024
