Magnesium sulphate Heptahydrate

Magnesium sulphate heptahydrate, yomwe imatchedwanso sulphobitter, mchere wowawa, mchere wa cathartic, mchere wa Epsom, mankhwala opangira MgSO4 · 7H2O), ndi oyera kapena opanda mtundu acicular kapena oblique columnar crystals, odorless, ozizira komanso owawa pang'ono.Pambuyo pakuwola kwa kutentha, madzi a crystalline amachotsedwa pang'onopang'ono kukhala anhydrous magnesium sulfate.Amagwiritsidwa ntchito kwambiri popanga feteleza, zikopa, kusindikiza ndi utoto, chothandizira, kupanga mapepala, mapulasitiki, zadothi, inki, machesi, zophulika ndi zinthu zosayaka moto.Itha kugwiritsidwa ntchito kusindikiza ndi kudaya nsalu zopyapyala za thonje ndi silika, monga chothandizira kulemera kwa silika wa thonje ndi zodzaza zinthu za kapok, ndikugwiritsidwa ntchito ngati mchere wa Epsom mumankhwala.

Zakuthupi:

Maonekedwe ndi katundu: ndi wa rhombic crystal system, pamakona anayi granular kapena rhombic crystal, colorless, manla, aggregate for white, rose or green glass luster.Mawonekedwe ake ndi fibrous, acicular, granular kapena ufa.Zosanunkha, zowawa.

Kusungunuka: Kusungunuka mosavuta m'madzi, kusungunuka pang'ono mu Mowa ndi glycerol.

Chemical katundu:

Kukhazikika: Kukhazikika mumlengalenga wonyowa pansi pa 48.1 ° C. N'zosavuta kukhala mumlengalenga wofunda ndi wouma.Ikakwera kuposa 48.1 ° C, imataya madzi a crystalline ndipo imakhala yamatsenga sulphate.Nthawi yomweyo, magnesium sulphate imayamba.Pa 70-80 ° C, imataya madzi a kristalo a 4, imataya madzi a kristalo 5 pa 100 ° C, ndipo inataya madzi a kristalo 6 pa 150 ° C. Pa 200 ° C Magnesium - monga madzi sulfate, zinthu zopanda madzi zimayikidwa mumlengalenga wonyowa. kuyamwanso madzi.Mu yankho lodzaza la magnesium sulfate, kristalo wophatikizidwa ndi madzi wokhala ndi 1, 2, 3, 4, 5, 6, ndi madzi 12 amatha kukhala kristalo.Mu -1.8 ~ 48.18 ° C odzaza amadzimadzi njira, magnesium sulphate ndi mpweya, ndi zimalimbikitsa madzi njira ya 48.1 mpaka 67.5 ° C, magnesium sulphate ndi mpweya.Ndipamwamba kuposa 67.5 ° C, magnesium sulphate imayamba.Kusungunuka kwachilendo pakati pa ° C ndi magnesium sulphate ya sulphate yamadzi isanu kapena inayi idapangidwa.Magnesium sulphate inasinthidwa kukhala magnesium sulphate pa 106 ° C. Magnesium sulphate inasinthidwa kukhala magnesium sulphate pa 122-124 ° C. Magnesium sulfate amasandulika kukhala magnesium sulfate yokhazikika pa 161 ~ 169 ℃.

Poizoni: Wakupha

Mtengo wa PH: 7, Wosalowerera ndale

Kugwiritsa Ntchito Kwambiri:

1) Munda wa chakudya

Monga wothandizira chakudya.malamulo a dziko langa angagwiritsidwe ntchito pa mkaka, ndi kuchuluka kwa 3 kwa 7g/kg;kuchuluka kwa ntchito pakumwa madzi ndi zakumwa mkaka ndi 1.4 ~ 2.8g/kg;Kugwiritsa ntchito kwambiri muzakumwa zamchere ndi 0.05g/kg.

2) Munda wa mafakitale

Amagwiritsidwa ntchito kwambiri ndi mchere wa calcium m'madzi a amayi a vinyo.Kuwonjezera pa 4.4g / 100L madzi akhoza kuonjezera kuuma ndi 1 digiri.Akagwiritsidwa ntchito, amatha kutulutsa zowawa ndikutulutsa fungo la hydrogen sulfide.

Amagwiritsidwa ntchito ngati kamvekedwe, zophulika, kupanga mapepala, zadothi, feteleza, ndi mankhwala oletsa pakamwa, ndi zina zotero, zowonjezera madzi amchere.

3) Munda waulimi

Magnesium sulphate amagwiritsidwa ntchito muulimi chifukwa magnesium ndi imodzi mwazinthu zazikulu za chlorophyll.Mbewu za zomera za potted kapena magnesium nthawi zambiri zimagwiritsidwa ntchito, monga tomato, mbatata, maluwa, ndi zina zotero. Magnesium sulphate imakhala ndi kusungunuka kwakukulu poyerekeza ndi feteleza wina.Magnesium sulphate amagwiritsidwanso ntchito ngati mchere wosambira.

Njira yokonzekera:

1) Njira 1:

Sulfuric acid imawonjezeredwa ku magnesium carbonate yachilengedwe (magnesite), carbon dioxide imachotsedwa, kukonzanso, Kieserite (MgSO4 · H2O) imasungunuka m'madzi otentha ndikutsitsimutsidwa, yopangidwa kuchokera kumadzi a m'nyanja.

2) Njira 2 (Njira yotulutsa madzi a m'nyanja)

Pambuyo brine ndi nthunzi ndi njira brine, kutentha kutentha mchere amapangidwa, ndipo kapangidwe ake ndi MgSO4>.30 peresenti.35%, MgCl2 pafupifupi 7%, KCl pafupifupi 0.5%.Chowawacho chikhoza kuchotsedwa ndi MgCl2 yankho la 200g/L pa 48 ℃, ndi yankho lochepa la NaCl ndi njira yowonjezera ya MgSO4.Pambuyo kulekana, ndi yosakongola MgSO4 · 7H2O anali precipitated ndi kuzirala pa 10 ℃, ndipo chomalizidwa analandira ndi recrystallization yachiwiri.

3) Njira 3 (njira ya sulfuric acid)

Mu thanki ya neutralization, rhombotrite inawonjezeredwa pang'onopang'ono m'madzi ndi mowa wa amayi, kenaka amachotsedwa ndi sulfuric acid.Mtunduwo unasintha kuchoka ku mtundu wa dziko kukhala wofiira.PH idalamulidwa kukhala 5, ndipo kachulukidwe wachibale anali 1.37 ~ 1.38 (39 ~ 40° Be).Njira yothetsera neutralization idasefedwa pa 80 ℃, kenako pH idasinthidwa kukhala 4 ndi sulfuric acid, makhiristo oyenerera ambewu adawonjezedwa, ndikukhazikika mpaka 30 ℃ kuti crystallization.Pambuyo pa kulekana, chomalizidwacho chimawuma pa 50 ~ 55 ℃, ndipo chakumwa cha mayi chimabwezeredwa ku thanki ya neutralization.Magnesium sulphate heptahydrate akhoza kukonzedwa ndi neutralizing anachita otsika sulfuric asidi ndi 65% magnesia mu momorrhea kudzera kusefera, mpweya, ndende, crystallization, centrifugal kulekana ndi dryness, izo wapangidwa ndi magnesium sulphate.

Rection chemical equation: MgO+H2SO4+6H2O→MgSO4·7H2O.

Chitetezo pamayendedwe:Kuyika kwake kuyenera kukhala kokwanira ponyamula, ndipo kukweza kukhale kotetezeka.Panthawi yoyendetsa, onetsetsani kuti chidebecho chisatayike, kugwa, kugwa, kapena kuwonongeka.Ndizoletsedwa kusakaniza ndi zidulo ndi mankhwala odyedwa.Panthawi yoyendetsa, iyenera kutetezedwa ku dzuwa, mvula ndi kutentha kwakukulu.Galimoto iyenera kutsukidwa bwino pambuyo pa mayendedwe.

Njira zodzitetezera:Anatseka ntchito ndi kulimbikitsa mpweya wabwino.Wogwira ntchitoyo ayenera kutsatira mosamalitsa njira zogwirira ntchito pambuyo pa maphunziro apadera.Ndikofunikira kuti ogwira ntchito azivala zotchingira fumbi zodzitchinjiriza, magalasi odzitchinjiriza pamankhwala, kuvala zovala zantchito zoletsa poyizoni, ndi magolovesi amphira.Pewani fumbi.Pewani kukhudzana ndi zidulo.Chotsani ndikuchotsani pang'onopang'ono kuti mupewe kuwonongeka.Okonzeka ndi zida zadzidzidzi zotayikira.Zotengera zopanda kanthu zitha kukhala zotsalira zowononga.Pamene fumbi ndende mu mlengalenga kuposa muyezo, tiyenera kuvala tokha suction fumbi chigoba.Pamene kupulumutsidwa mwadzidzidzi kapena kuthawa, kuvala masks odana ndi kachilomboka kuyenera kuvala.

Kusamala posungira:Kusungidwa mu ozizira, mpweya wosungiramo katundu.Khalani kutali ndi moto ndi kutentha.Sungani mosiyana ndi asidi ndipo pewani kusungirako kosakanikirana.Malo osungiramo ayenera kukhala ndi zipangizo zoyenera kuti zikhale ndi kutayikira.

Kunyamula: 25KG / BAG