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Calcium Oxide
Cov txiv qaub ceev feem ntau muaj cov txiv qaub overheated, overheated txiv qaub txij nkawm qeeb, yog tias cov pob zeb tshauv paste hardening dua, nws yuav ua rau tawg tawg vim kev laus expansion.Txhawm rau tshem tawm qhov teeb meem ntawm cov txiv qaub hlawv, cov txiv qaub yuav tsum "hnub nyoog" li ntawm 2 lub lis piam tom qab kev kho.Cov duab yog dawb (los yog grey, xim av, dawb), amorphous, nqus dej thiab carbon dioxide los ntawm huab cua.Calcium oxide reacts nrog dej los tsim calcium hydroxide thiab tso tawm cua sov.Soluble nyob rau hauv acidic dej, insoluble nyob rau hauv cawv.Inorganic alkaline corrosive cov khoom, lub teb chaws txaus ntshai code: 95006.Txiv qaub reacts chemically nrog dej thiab tam sim ntawd rhuab mus rau kub tshaj 100 ° C.
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Hydrofluoric Acid (HF)
Nws yog aqueous tov ntawm hydrogen fluoride roj, uas yog pob tshab, tsis muaj xim, haus luam yeeb corrosive kua nrog ib tug muaj zog pungent tsw.Hydrofluoric acid yog ib qho corrosive tsis muaj zog acid, uas yog corrosive heev rau hlau, iav thiab cov khoom uas muaj silicon.Kev nqus pa ntawm chav lossis kev sib cuag ntawm daim tawv nqaij tuaj yeem ua rau kub hnyiab uas nyuaj rau kho.Lub chaw soj nstuam feem ntau yog ua los ntawm fluorite (lub ntsiab lus tseem ceeb yog calcium fluoride) thiab cov concentrated sulfuric acid, uas yuav tsum tau muab ntim rau hauv lub raj mis yas thiab khaws cia rau hauv qhov chaw txias.
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Oxalic Acid
Nws yog ib hom organic acid, yog ib yam khoom ntawm cov kab mob metabolic, binary acid, dav faib nyob rau hauv cov nroj tsuag, tsiaj txhu thiab fungi, thiab nyob rau hauv cov kab mob sib txawv ua si sib txawv.Nws tau pom tias oxalic acid yog nplua nuj nyob rau hauv ntau tshaj 100 hom nroj tsuag, tshwj xeeb tshaj yog spinach, amaranth, beet, purslane, taro, qos yaj ywm qab zib thiab rhubarb.Vim tias oxalic acid tuaj yeem txo qhov bioavailability ntawm cov ntxhia hauv cov ntsiab lus, nws raug suav tias yog ib qho antagonist rau kev nqus thiab siv cov ntxhia hauv cov ntsiab lus.Nws cov anhydride yog carbon sesquioxide.
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Polyacrylamide (Pam)
(PAM) yog homopolymer ntawm acrylamide lossis polymer copolymerized nrog lwm cov monomers.Polyacrylamide (PAM) yog ib qho ntawm feem ntau siv dej-soluble polymers.(PAM) polyacrylamide yog siv dav hauv kev siv roj, ua ntawv, kho dej, textile, tshuaj, kev ua liaj ua teb thiab lwm yam lag luam.Raws li kev txheeb cais, 37% ntawm lub ntiaj teb tag nrho cov khoom siv polyacrylamide (PAM) yog siv rau kev kho dej khib nyiab, 27% rau kev lag luam roj av, thiab 18% rau kev lag luam ntawv.
