Calcium sulfate hemihydrate CAS 10034-76-1
Calcium sulphate imatchedwanso yaiwisi gypsum, hard yaiwisi gypsum, Muriacite, anhydrous gypsum. Makatani amtundu wa orthorhombic (mtundu wa β) kapena makhiristo a monoclinic (mtundu wa α). Kulemera kwa molekyulu 136.14. Kuchulukana kwachibale 2.960. Malo osungunuka 1193 ℃ (osinthidwa kuchoka ku mtundu wa β kupita ku mtundu wa α), 1450 ℃ (mtundu wa α, ndi wovunda). Kusungunuka pang'ono m'madzi (0.209 pa 20 ℃), kusungunuka mu asidi, ammonium mchere, sodium thiosulfate, sodium chloride solution ndi glycerol. Ngakhale madzi atawonjezedwa, sangakhalenso calcium sulfate dihydrate. Ngati miyala yachilengedwe ya gypsum ilibe madzi okwanira pansi pa 300 ℃, sungunuka wa anhydrous gypsum wosungunuka m'madzi ukhoza kupangidwa; ngati gypsum yachilengedwe ikatenthedwa kufika pamwamba pa 600 ℃, gypsum yosasungunuka imapangidwa. Pamene anhydrous calcium sulfate kapena pulasitala wa ku Paris asakanizidwa ndi madzi okwanira, amauma pang'onopang'ono. Amagwiritsidwa ntchito ngati retarder, zomatira, zotulutsa chinyezi, ufa wopukuta, kudzaza mapepala, desiccant ya gasi, bandeji ya pulasitala, ndi ntchito zamanja. Gypsum imagwiritsidwa ntchito ngati zinthu zopangira simenti, ndipo imatha kusintha nthawi yoyika simenti. Amagwiritsidwa ntchito ngati coagulant popanga tofu, chakudya cha yisiti, chowongolera mtanda, ndi chelating agent. Pali migodi yachilengedwe ya gypsum, ndipo zotuluka m'makampani a phosphate zimakhala ndi calcium sulfate. Njira ya ammonium sulfate imakhudzidwa ndi njira ya calcium chloride, ndipo kusefera, kuchapa ndi mvula kumatha kupanga chinthu choyera.
| Kanthu | Zotsatira |
| Maonekedwe | White ufa |
| Kuyesa | ≥99% |
| Kumveka bwino | Zimagwirizana |
| HCl osasungunuka | ≤0.025% |
| Chloride | ≤0.002% |
| Nitrate | ≤0.002% |
| Ammonium Salt | ≤0.005% |
| Mpweya wa carbonate | ≤0.05% |
| Chitsulo | ≤0.0005% |
| Chitsulo cholemera | ≤0.001% |
| Magnesium ndi alkali zitsulo | ≤0.2% |
Kukonza chakudya:
Calcium sulphate angagwiritsidwe ntchito ngati mankhwala ufa wothandizira (monga diluent kwa benzoyl peroxide), ndi ntchito pazipita 1.5 magalamu pa kilogalamu; amagwiritsidwa ntchito ngati coagulant pokonza chakudya. Amagwiritsidwa ntchito popanga tofu, ndipo pafupifupi 14-20 magalamu pa lita imodzi ya soya amawonjezeredwa ku mkaka wa soya (kuchuluka kwambiri kumabweretsa zowawa). Amawonjezeredwa ku ufa wa tirigu pa 0.15% ndipo amagwiritsidwa ntchito ngati chakudya cha yisiti ndi chowongolera mtanda. Iwo anawonjezera kuti zamzitini tomato ndi mbatata monga kulimbikitsa minofu. Amagwiritsidwa ntchito ngati chowumitsa madzi komanso ngati chowonjezera kukoma pofulira moŵa. Itha kugwiritsidwanso ntchito ngati chowonjezera chopatsa thanzi.
Kupanga mafakitale:
1. Makampani omanga: Calcium sulfate angagwiritsidwe ntchito pomanga zomangira, zipangizo zomangira kutentha, zokutira, zipangizo zolimbitsa, etc. Ndevu za Calcium sulfate zimakhala ndi mikangano yabwino, kuteteza kutentha, kuteteza kutentha, kuteteza moto, kusungunula kopanda kondakitala ndi zinthu zina, ndipo zimatha m'malo mwa asbestos monga zinthu zotsutsana ndi moto, zowonongeka ndi moto. Amagwiritsidwa ntchito ngati chida choyambirira champhamvu muzosakaniza za konkire, nthawi zambiri ndi mlingo wa 3%, kusintha nthawi yokhazikika ndikusakaniza ndikupera simenti. Pamene calcium sulphate iwonjezeredwa ku konkire, imakhala ndi mphamvu yoyambirira.
2. Makampani opanga mapepala: Calcium sulfate amagwiritsidwa ntchito m'makampani opanga mapepala kuti alowe m'malo mwa zina kapena zambiri za zamkati. Calcium sulphate yokhala ndi chiŵerengero chochepera kapena chofanana ndi 50 ingagwiritsidwe ntchito ngati chodzaza mapepala apamwamba kwambiri, chomwe chingawonjezere kwambiri kupanga mapepala, kuchepetsa mtengo wa nkhuni, ndikuthandizira kuteteza chilengedwe ndi kuchepetsa kuipitsidwa kwa madzi oipa.
3. Makampani opanga mankhwala: M'makampani opanga mankhwala, amatha kugwiritsidwa ntchito ngati kulimbikitsa. Ndevu za anhydrous calcium sulfate zitha kugwiritsidwa ntchito mu granulation ya pulasitiki kukulitsa mphamvu ya tinthu tapulasitiki, kukana kutentha kwambiri, ndikuchepetsa mtengo. Popanga mapulasitiki monga polyvinyl chloride, polyethylene, propylene, ndi polystyrene, amatha kupititsa patsogolo magwiridwe antchito azinthu zosiyanasiyana, kuwongolera bwino, kukhazikika kwapakatikati, kutha kwapamtunda, kulimba kwamphamvu, kupindika mphamvu, kupindika modulus zotanuka ndi kutentha kwa matenthedwe, ndikuchepetsa kuvala kwa zida. Monga asphalt filler, imatha kukulitsa kwambiri malo ochepetsera a asphalt.
Agriculture:
Calcium sulphate angagwiritsidwe ntchito ngati fetereza paulimi kuti achepetse kusungunuka kwa nthaka ndikuwongolera nthaka.
Mankhwala:
Calcium sulphate imagwira ntchito zosiyanasiyana m'makampani opanga mankhwala. Ikhoza kugwiritsidwa ntchito pokonzekera mankhwala ndikupereka zofunikira zowonjezera ndi katundu wa mankhwala. Kuphatikiza apo, calcium sulphate imagwiritsidwanso ntchito popanga mapiritsi kuti atsimikizire kukhazikika komanso kuchita bwino kwa mapiritsi. Panthawi imodzimodziyo, amawonjezeredwa ku mankhwala otsukira mano kuti apititse patsogolo mapangidwe ndi ntchito ya mankhwala otsukira mano. Ntchitozi zikuwonetsa kufunikira kwa calcium sulfate m'makampani opanga mankhwala, kupereka zopangira zazikulu ndi katundu wazogulitsa mankhwala.
25kg / thumba
Calcium sulfate hemihydrate CAS 10034-76-1
Calcium sulfate hemihydrate CAS 10034-76-1
