Calcium sulfate hemihydrate CAS 10034-76-1
Calcium sulfate inonziwo mbishi gypsum, hard raw gypsum, Muriacite, anhydrous gypsum. Asina mavara orthorhombic crystals (β type) kana monoclinic makristasi (α type). Relative molecular uremu 136.14. Relative density 2.960. Inonyungudika 1193 ℃ (yakashandurwa kubva ku β mhando kuenda ku α mhando), 1450 ℃ (α mhando, uye yakaora). Inonyungudika zvishoma mumvura (0.209 pa20 ℃), inonyungudika muasidhi, ammonium munyu, sodium thiosulfate, sodium chloride solution uye glycerol. Kunyange kana mvura yakawedzerwa, haigoni kuva calcium sulfate dihydrate. Kana iyo yakasikwa gypsum ore yakapera zvachose pasi pe300 ℃, soluble anhydrous gypsum soluble mumvura inogona kugadzirwa; kana iyo yakasikwa gypsum ichipisa kusvika pamusoro pe600 ℃, insoluble anhydrous gypsum inogadzirwa. Kana anhydrous calcium sulfate kana plaster yeParis yakasanganiswa nehuwandu hwakakodzera hwemvura, inoomesa zvishoma nezvishoma. Inoshandiswa seretarder, adhesive, kunyorova kunyorova, kupukuta hupfu, kuzadza bepa, gasi desiccant, plaster bandage, uye handicraft. Gypsum inoshandiswa sechinhu chakabikwa kugadzira simende, uye inogona kugadzirisa nguva yekumisikidza simende. Inoshandiswa se coagulant mukugadzira tofu, mbiriso yekudya, dovi regulator, uye chelating agent. Kune yakasikwa gypsum migodhi, uye byproducts yeindasitiri phosphate ine calcium sulfate. Iyo ammonium sulfate solution inopindirana necalcium chloride solution, uye kusefa, kuwacha uye kunaya kwemvura kunogona kuburitsa chigadzirwa chakachena.
| Item | Mhedzisiro |
| Chitarisiko | Upfu chena |
| Assay | ≥99% |
| Kujeka | Zvinoenderana |
| HCl isinganyunguriki | ≤0.025% |
| Chloride | ≤0.002% |
| Nitrate | ≤0.002% |
| Ammonium Munyu | ≤0.005% |
| Carbonate | ≤0.05% |
| Iron | ≤0.0005% |
| Heavy metal | ≤0.001% |
| Magnesium uye alkali simbi | ≤0.2% |
Kugadziriswa kwechikafu:
Calcium sulfate inogona kushandiswa semushonga wekurapa hupfu (se diluent ye benzoyl peroxide), ine huwandu hwekushandiswa kwe1.5 gramu pakirogiramu; inoshandiswa se coagulant mukugadzira chikafu. Inoshandiswa kugadzira tofu, uye inenge 14-20 magiramu parita yesoya inowedzerwa kumukaka wesoya (yakawandisa inobereka kuvava). Inowedzerwa kune hupfu hwegorosi pa 0.15% uye inoshandiswa sembiriso yezvokudya uye mutongi wehupfu. Inowedzerwa kumatomatisi emumagaba uye mbatatisi sechinhu chinosimbisa matishu. Inoshandiswa sechinhu chinoomesa mvura uye chinonatsiridza kubikisa doro. Inogonawo kushandiswa sechikafu chekudya.
Kugadzirwa kwemaindasitiri:
1. Indasitiri yekuvaka: Calcium sulfate inogona kushandiswa muindastiri yekuvaka yezvivakwa zvekuvaka, thermal insulation materials, coatings, reinforcement materials, etc. Calcium sulfate ndebvu dzine kukweshana kwakanaka, kuchengetedza kupisa, kupisa kupisa, kudzivirira moto, kusiri-conductor insulation uye zvimwe zvivakwa, uye inogona kutsiva asbestos sechinhu chinokwenya (fireproof material, rerdant). Inoshandiswa seyekutanga simba mumiriri mune kongiri admixtures, kazhinji ine dosi yeanosvika 3%, kugadzirisa nguva yekumisikidza uye kusanganisa nekukuya simende. Kana calcium sulfate yawedzerwa kune kongiri, ine yakakosha yekutanga simba mhedzisiro.
2. Indasitiri yekugadzira mapepa: Calcium sulfate inoshandiswa mumhizha yekugadzira mapepa kutsiva chikamu kana zvizhinji zvepulp. Calcium sulfate ine aspect ratio isingasviki kana kuenzana ne50 inogona kushandiswa seyepamusoro-giredhi yekuzadza bepa, iyo inogona kuwedzera zvakanyanya kugadzira mapepa, kuderedza kushandiswa kwehuni, uye kubatsira kuchengetedza nharaunda uye kuderedza kusvibiswa kwemvura.
3. Chemical industry: Muindasitiri yemakemikari, inogona kushandiswa sechinhu chinosimbisa. Anhydrous calcium sulfate whiskers inogona kushandiswa mupurasitiki granulation kuwedzera kusimba kwezvikamu zvepurasitiki, kupisa kwakanyanya, uye kuderedza mitengo. Mukugadzira mapurasitiki akadai sepolyvinyl chloride, polyethylene, propylene, uye polystyrene, inogona kusimudzira kushanda kwezvinhu zvakasiyana-siyana zvechigadzirwa, kuvandudza kunaka, kugadzikana kwedimensional, kupera kwepamusoro, kusimba kwesimba, kupeta simba, kupeta elastic modulus uye tembiricha yekupisa, uye kuderedza kupfeka kwemidziyo. Seye asphalt filler, inogona kuwedzera zvakanyanya kupfava kweasphalt.
Agriculture:
Calcium sulfate inogona kushandiswa sefotereza mukurima kuderedza alkalinity yevhu nekuvandudza kushanda kwevhu.
Mushonga:
Calcium sulfate ine zvakasiyana-siyana zvekushandisa muindasitiri yemishonga. Inogona kushandiswa kugadzirira zvinodhaka uye kupa zvinodiwa zvinoshandiswa uye zvinhu zvemishonga. Mukuwedzera, calcium sulfate inoshandiswawo kugadzira mapiritsi kuti ave nechokwadi chekugadzikana uye kushanda kwemapiritsi. Panguva imwecheteyo, inowedzerwawo kune mazino kuti iwedzere kuumbwa uye basa remazino. Aya maapplication anoratidza kukosha kwecalcium sulfate muindasitiri yemishonga, ichipa zvakakosha zvinongedzo uye zvivakwa zvezvigadzirwa zvemishonga.
25kg / bhegi
Calcium sulfate hemihydrate CAS 10034-76-1
Calcium sulfate hemihydrate CAS 10034-76-1
