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Calcium sulfate hemihydrate CAS 10034-76-1


  • CAS:10034-76-1
  • Molecular Formula:CaH2O5S
  • Molecular Luj:154.16 Nws
  • EINECS:600-067-1
  • Synonyms:CALCINED GYPSUM; Calcium Sulfate 0.5-Dej; Calcium Sulfate, 1/2-HYDRATE; Calcium Sulphate 1/2 H2O; CALCIUMSULFATE BINDER CAB 30; Calcium Sulfate CALCINED; Calcium Sulfate CALCINED HEMIHYDRATE; Calcium Sulfate HEMIHYDRATE
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    Calcium sulfate hemihydrate CAS 10034-76-1 yog dab tsi?

    Calcium sulfate tseem hu ua raw gypsum, tawv nyoos gypsum, Muriacite, anhydrous gypsum. Tsis muaj xim orthorhombic crystals (β hom) lossis monoclinic crystals (α hom). Tus txheeb ze molecular hnyav 136.14. Cov txheeb ze ntom ntom 2.960. Melting point 1193 ℃ (hloov ntawm β hom mus rau α hom), 1450 ℃ (α hom, thiab decomposed). Me ntsis soluble hauv dej (0.209 ntawm 20 ℃), soluble hauv acid, ammonium ntsev, sodium thiosulfate, sodium chloride tov thiab glycerol. Txawm hais tias dej ntxiv, nws tsis tuaj yeem dhau los ua calcium sulfate dihydrate. Yog hais tias lub ntuj gypsum ore yog kiag li lub cev qhuav dej hauv qab 300 ℃, soluble anhydrous gypsum soluble nyob rau hauv dej yuav generated; Yog hais tias lub ntuj gypsum yog rhuab rau saum 600 ℃, insoluble anhydrous gypsum yog generated. Thaum anhydrous calcium sulfate los yog plaster ntawm Paris yog tov nrog tus nqi tsim nyog, nws maj mam solidifies. Nws yog siv los ua retarder, nplaum, noo noo absorbent, polishing hmoov, ntawv sau, roj desiccant, plaster bandage, thiab khoom siv tes ua. Gypsum yog siv los ua cov khoom siv raw rau kev ua cov cement, thiab nws tuaj yeem kho lub sijhawm ntawm cov cement. Nws yog siv los ua coagulant hauv tofu ua, poov xab pub, khob noom cookie regulator, thiab chelating tus neeg sawv cev. Muaj cov mines ntuj gypsum, thiab cov khoom siv los ntawm kev lag luam phosphate muaj calcium sulfate. Cov tshuaj ammonium sulfate reacts nrog cov tshuaj calcium chloride, thiab kev pom, ntxuav thiab nag lossis daus tuaj yeem tsim cov khoom ntshiab.

    Specification

    Yam khoom Kev tshwm sim
    Qhov tshwm sim Dawb hmoov
    Assay ≥99%
    Qhov tseeb Ua raws
    HCl insoluble ≤ 0.025%
    Chloride ≤0.002%
    Nitrate ≤0.002%
    Ammonium ntsev ≤ 0.005%
    Carbonate ≤ 0.05%
    Hlau ≤ 0.0005%
    Hnyav hlau ≤ 0.001%
    Magnesium thiab alkali hlau ≤ 0.2%

     

    Daim ntawv thov

    Kev ua zaub mov:

    Calcium sulfate tuaj yeem siv los ua cov hmoov txhuv nplej siab (raws li diluent rau benzoyl peroxide), nrog rau kev siv ntau tshaj ntawm 1.5 grams ib kilogram; nws yog siv los ua coagulant hauv kev ua zaub mov. Nws yog siv los ua taum paj, thiab li ntawm 14-20 grams ib liter ntawm soybeans ntxiv rau cov kua mis (ntau npaum li cas yuav ua rau iab). Nws yog ntxiv rau cov hmoov nplej ntawm 0.15% thiab siv los ua cov khoom noj poov xab thiab ua khob noom cookie. Nws yog ntxiv rau cov kaus poom txiv lws suav thiab qos yaj ywm ua cov ntaub so ntswg ntxiv dag zog. Nws yog siv los ua ib qho dej hardener thiab ib qho tsw enhancer rau brewing npias. Nws kuj tseem siv tau los ua khoom noj khoom haus ntxiv.

     

    Industrial ntau lawm:

    1. Kev tsim kho kev lag luam: Calcium sulfate tuaj yeem siv rau hauv kev tsim kho kev lag luam rau cov khoom siv hauv tsev, thermal rwb thaiv tsev cov ntaub ntawv, coatings, reinforcement cov ntaub ntawv, thiab lwm yam Calcium sulfate whiskers muaj kev sib txhuam zoo, kev txuag hluav taws xob, kev tiv thaiv hluav taws kub, kev tiv thaiv hluav taws, tsis yog cov khoom siv hluav taws xob thiab lwm yam khoom, thiab tuaj yeem hloov cov asbestos ua cov khoom sib txhuam, cov khoom siv thermal insulation, thiab cov khoom siv hluav taws xob. Nws yog siv los ua tus neeg sawv cev thaum ntxov hauv cov khoom sib xyaw ua ke, feem ntau nrog kev siv li ntawm 3%, los kho lub sijhawm teem sijhawm thiab sib tov thiab zom hauv cov cement. Thaum calcium sulfate ntxiv rau pob zeb, nws muaj lub zog tseem ceeb thaum ntxov.

    2. Papermaking kev lag luam: Calcium sulfate yog siv nyob rau hauv kev lag luam papermaking los hloov ib feem los yog feem ntau ntawm cov pulp. Calcium sulfate nrog qhov sib piv tsawg dua lossis sib npaug li 50 tuaj yeem siv los ua cov khoom siv qib siab rau cov ntawv, uas tuaj yeem ua kom cov ntawv ntau lawm, txo cov ntoo siv, thiab pab tiv thaiv ib puag ncig thiab txo cov dej paug paug.

    3. Kev lag luam tshuaj: Hauv kev lag luam tshuaj, nws tuaj yeem siv los ua cov khoom siv ntxiv. Anhydrous calcium sulfate whiskers tuaj yeem siv rau hauv cov yas granulation los txhim kho lub zog ntawm cov khoom yas, kub ua hauj, thiab txo cov nqi. Hauv kev tsim cov yas xws li polyvinyl chloride, polyethylene, propylene, thiab polystyrene, nws tuaj yeem txhim kho kev ua tau zoo ntawm ntau yam ntawm cov khoom, txhim kho qhov zoo, qhov ruaj khov, nto tiav, tensile zog, khoov lub zog, khoov elastic modulus thiab thermal deformation kub, thiab txo cov khoom siv. Raws li asphalt muab tub lim, nws tuaj yeem nce qhov muag muag ntawm asphalt.

     

    Ua liaj ua teb:

    Calcium sulfate tuaj yeem siv ua chiv hauv kev ua liaj ua teb kom txo cov av alkalinity thiab txhim kho av kev ua haujlwm.

     

    Tshuaj kho mob:

    Calcium sulfate muaj ntau yam kev siv hauv kev lag luam kws tshuaj. Nws tuaj yeem siv los npaj cov tshuaj thiab muab cov khoom xyaw thiab cov khoom siv rau cov tshuaj. Tsis tas li ntawd, calcium sulfate kuj tseem siv los ua cov ntsiav tshuaj kom ruaj khov thiab ua haujlwm zoo ntawm cov ntsiav tshuaj. Nyob rau tib lub sijhawm, nws kuj tseem ntxiv rau cov tshuaj txhuam hniav txhawm rau txhim kho qhov muaj pes tsawg leeg thiab kev ua haujlwm ntawm cov tshuaj txhuam hniav. Cov ntawv thov no qhia txog qhov tseem ceeb ntawm calcium sulfate hauv kev lag luam kws tshuaj, muab cov khoom xyaw tseem ceeb thiab cov khoom siv rau cov khoom siv tshuaj.

    Pob

    25kg / hnab

    Calcium sulfate hemihydrate CAS 10034-76-1-pack-1

    Calcium sulfate hemihydrate CAS 10034-76-1

    Calcium sulfate hemihydrate CAS 10034-76-1-pob-2

    Calcium sulfate hemihydrate CAS 10034-76-1


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