Mugadziri Mutengo Wakanaka Stearic acid CAS:57-11-4

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Stearic acid : (industrial giredhi) Octadecanoic acid, C18H36O2, inogadzirwa nehydrolysis yemafuta uye inonyanya kushandiswa mukugadzira stearate.
Stearic Acid-829 Stearic acid, Stearic asidhi yakasimba fatty acid inowanikwa kubva kumhuka nemafuta emiriwo, iyo huru iyo inonzi stearic acid (C18H36O2) uye palmitic acid (C16H32O2).
Ichi chigadzirwa chichena kana chichena sehupfu kana crystalline hard block, chimiro chayo chine microstrip luster yakanaka yetsono crystal;Iine kamunhuhwi kakafanana negirizi uye haina kunaka.Ichi chigadzirwa chinonyungudika mu chloroform kana diethyl ether, yakanyungudutswa mu ethanol, inenge isingagoneki mumvura.Kutonhora kwechando Nzvimbo yechando (Appendix Ⅵ D) yechigadzirwa haifanirwe kuderera kupfuura 54 ℃.Iodine kukosha Iodine kukosha kwechigadzirwa ichi (Appendix Ⅶ H) haisi kupfuura 4. Acid Value (Appendix Ⅶ H) yechigadzirwa ichi inobva ku203 kusvika ku210. Stearate inopindirana nyore nyore ne magnesium uye calcium ions kuti iite magnesium stearate uye calcium stearate. (mvura yakachena)
Stearic acid CAS 57-11-4
Product Name: Stearic acid

CAS: 57-11-4

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ACIDUM STEARICUM 50;CETYLACETIC ACID;FEMA 3035;CARBOXYLIC ACID C18;C18;C18:0 FATTY ACID;hystrene5016;hystrene7018

Kushandiswa kweStearic acid

Stearic acid, (industrial giredhi) Stearic asidhi imwe yeakawanda mahombe marefu-cheni mafuta acids anosanganisira oiri nemafuta.Iyo inounzwa mumafuta emhuka, mafuta uye mamwe marudzi emafuta emiriwo zvakare mune fomu yeglycerides.Aya mafuta, mushure me hydrolysis, anogadzira iyo stearic acid.
Stearic acid is fatty acid inowanikwa zvakanyanya muzvisikwa uye ine general chemical properties ye carboxylic acids.Anenge marudzi ese emafuta neoiri ane humwe huwandu hweiyo stearic asidhi ine zviri mumafuta emhuka zvichikwira.Semuenzaniso, zviri mubhotoro zvinogona kusvika kusvika 24% nepo zviri mumafuta emuriwo zvine mwero uye kukosha kwemafuta etii kuri 0.8% uye mafuta ari muchanza ari 6%.Zvisinei, zviri mucocoa zvinogona kusvika kusvika pa34%.

Pane nzira mbiri huru dzekugadzirwa kwemaindasitiri kwe stearic acid, dzinoti kuganhurwa uye nzira yekumanikidza.Wedzera decomposition agent kune hydrogenated mafuta, uye ipapo hydrolyze kupa crude fatty acid, pfuurira kuburikidza nekugeza nemvura, distillation, bleaching kuti uwane zvigadzirwa zvakapedzwa neglycerol seyo byproduct.
Vazhinji vagadziri vepamba vanoshandisa mafuta emhuka kugadzira.Dzimwe mhando dzetekinoroji yekugadzira zvinokonzeresa kusapedzwa kwekunatswa kwemafuta asidhi iyo inoburitsa kunhuhwirira kunosimudzira panguva yekugadziriswa kwepurasitiki uye kupisa kwakanyanya.Kunyangwe kunhuhwirira uku kusiri kwehupfu asi ivo vanozove nemhedzisiro pamamiriro ekushanda uye nharaunda yakasikwa.Yakawanda inotengeswa kunze kwenyika ye stearic acid inotora mafuta emuriwo seyakagadzirwa, maitiro ekugadzira ari epamusoro;iyo inogadzirwa stearic acid ndeyekuita kwakagadzikana, yakanaka yekuzora pfuma uye kushoma kunhuwa mukushandisa.
Stearic acid inonyanya kushandiswa kugadzira stearate sesodium stearate, magnesium stearate, calcium stearate, lead stearate, aluminium stearate, cadmium stearate, iron stearate, uye potassium stearate.Iyo sodium kana potasium munyu ye stearic acid ndiyo chikamu chesipo.Kunyangwe sodium stearate ine kushomeka kwekuita decontamination pane sodium palmitate, asi kuvapo kwayo kunogona kuwedzera kuoma kwesipo.
Tora bhotela seyakagadzirwa, enda kuburikidza ne sulfuric acid kana yakamanikidzwa nzira yekuora.Iyo yemahara fatty acids yakatanga pasi pekumanikidzwa kwemvura nzira yekubvisa palmitic acid uye oleic acid pa30 ~ 40 ℃, uye yozonyungudika mu ethanol, ichiteverwa nekuwedzera kwe barium acetate kana magnesium acetate iyo inokonzeresa stearate.Wobva wawedzera dilute sulfuric acid kuti utore iyo yemahara stearate asidhi, sefa uye woitora, uye zvakare kristaro mu ethanol kuti uwane iyo yakachena stearic acid.