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Chaw tsim tshuaj paus Zoo Nqe Oxalic Acid CAS: 144-62-7
Oxalic acid yog ib qho muaj zog dicarboxylic acid tshwm sim hauv ntau cov nroj tsuag thiab zaub, feem ntau yog nws cov calcium lossis potassium ntsev.Oxalic acid yog tib qhov ua tau nyob rau hauv uas ob pawg carboxyl koom ncaj qha;Vim li no oxalic acid yog ib qho ntawm cov organic acids uas muaj zog tshaj plaws.Tsis zoo li lwm cov carboxylic acids (tshwj tsis yog formic acid), nws tau nkag oxidized;Qhov no ua rau nws muaj txiaj ntsig zoo li tus neeg sawv cev txo qis rau kev yees duab, tshuaj dawb, thiab tshem tawm tus cwj mem.Oxalic acid feem ntau yog npaj los ntawm cua sov sodium formate nrog sodium hydroxide los tsim sodium oxalate, uas yog hloov mus rau calcium oxalate thiab kho nrog sulfuric acid kom tau dawb oxalic acid.
Cov ntsiab lus ntawm oxalic acid tsis tshua muaj nyob rau hauv feem ntau cov nroj tsuag thiab cov khoom noj uas cog, tab sis muaj txaus hauv spinach, chard thiab beet zaub ntsuab los cuam tshuam nrog kev nqus ntawm calcium cov nroj tsuag no kuj muaj.
Nws yog tsim nyob rau hauv lub cev los ntawm metabolism ntawm glyoxylic acid los yog ascorbic acid.Nws tsis yog metabolized tab sis tawm hauv cov zis.Nws yog siv los ua cov tshuaj analytical reagent thiab kev txo tus neeg sawv cev.Oxalic acid yog cov tshuaj acaricide ntuj siv los kho cov kab mob varroa mites nyob rau hauv cov cheeb tsam uas tsis muaj / qis brood, pob, los yog swarms.Vaporized oxalic acid yog siv los ntawm qee tus beekeepers ua tshuaj tua kab tiv thaiv kab mob Varroa mite. -
Tuam Tshoj Tus Nqi Zoo Xanthan Gum Muaj Qib CAS: 11138-66-2
Xanthan gum, tseem hu ua Hanseonggum, yog ib hom microbial exopolysaccharide uas yog tsim los ntawm Xanthomnas campestris nrog carbohydrate ua raw khoom (xws li pob kws starch) los ntawm fermentation engineering.Nws muaj qhov tshwj xeeb rheology, dej solubility zoo, ruaj khov rau cua sov thiab acid puag, thiab muaj kev sib raug zoo nrog ntau yam ntsev.Raws li ib tug thickening neeg sawv cev, ncua kev kawm ntawv tus neeg saib xyuas, emulsifier, stabilizer, yuav lug siv nyob rau hauv cov zaub mov, roj av, tshuaj thiab lwm yam tshaj li 20 industries, yog tam sim no lub ntiaj teb no loj tshaj plaws ntau lawm teev thiab heev lug siv microbial polysaccharide.
Xanthan cov pos hniav yog lub teeb daj rau dawb movable hmoov, me ntsis tsw.Soluble nyob rau hauv dej txias thiab kub, nruab nrab daws, resistant rau khov thiab thawing, insoluble nyob rau hauv ethanol.Dej dispersion, emulsification rau hauv ib qho ruaj khov hydrophilic viscous colloid.
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Chaw tsim tshuaj paus Zoo Nqe DINP Industrial qib CAS: 28553-12-0
Diisononyl phthalate (DINP):Cov khoom no yog pob tshab oily kua nrog ib tug me ntsis tsw.Nws yog ntau yam tseem ceeb plasticizer nrog cov khoom zoo heev.Cov khoom no yog soluble hauv PVC, thiab yuav tsis precipitate txawm tias siv ntau ntau.Volatilization, tsiv teb tsaws thiab tsis muaj tshuaj lom yog zoo dua li DOP (dioctyl phthalate), uas tuaj yeem muab cov khoom lag luam zoo lub teeb, tiv thaiv tshav kub, tiv thaiv kev laus thiab hluav taws xob rwb thaiv tsev, thiab kev ua haujlwm zoo dua li DOP.Vim hais tias cov khoom tsim los ntawm cov khoom no muaj cov dej tsis zoo thiab kev tawm tsam, tsis muaj tshuaj lom, kev laus ua haujlwm, kev ua haujlwm zoo hluav taws xob, yog li nws tau siv dav hauv cov khoom ua si zaj duab xis, hlau, cable.
Piv nrog rau DOP, qhov hnyav molecular yog loj dua thiab ntev dua, yog li nws muaj kev laus zoo dua, tsis kam mus rau kev tsiv teb tsaws, kev ua haujlwm tiv thaiv kab mob, thiab kev kub siab dua.Raws li txoj cai, nyob rau hauv tib lub sijhawm, cov nyhuv plasticization ntawm DINP yog me ntsis phem dua li DOP.Nws feem ntau ntseeg tias DINP yog ib puag ncig zoo dua li DOP.
DINP muaj qhov zoo tshaj plaws hauv kev txhim kho cov txiaj ntsig extrusion.Raws li cov txheej txheem extrusion raug, DINP tuaj yeem txo cov viscosity melting ntawm cov khoom sib tov dua li DOP, uas yuav pab txo qhov siab ntawm qhov chaw nres nkoj qauv, txo cov neeg siv khoom hnav lossis nce cov khoom tsim tau (txog 21%).Tsis tas yuav hloov cov qauv ntawm cov khoom lag luam thiab cov txheej txheem tsim khoom, tsis muaj peev txheej ntxiv, tsis muaj kev siv zog ntxiv, thiab tswj cov khoom zoo.
DINP feem ntau yog oily kua, insoluble hauv dej.Feem ntau thauj los ntawm cov tsheb thauj khoom, cov khoom me me ntawm cov thoob hlau lossis cov thoob yas tshwj xeeb.
Ib qho ntawm cov khoom siv tseem ceeb ntawm DINP -INA (INA), tam sim no tsuas yog ob peb lub tuam txhab hauv ntiaj teb tuaj yeem tsim tau, xws li Tebchaws Meskas 'Exxon Mobil, Lub Tebchaws Yelemees tus yeej, Nyiv Concord Company, thiab South Asian tuam txhab hauv Taiwan.Tam sim no, tsis muaj lub tuam txhab hauv tsev tsim INA.Txhua tus neeg tsim khoom tsim DINP hauv Suav teb yog txhua tus yuav tsum tau los ntawm kev xa khoom.
Synonyms: baylectrol4200; di-'isononyl'phthalate, mixtureofesters; diisononylphthalate, dinp; dinp2; dinp3; enj2065;isononylalcohol, phthalate (2: 1); jayflexdinp
CAS: 28553-12-0 Nr
MF: C26H42O4
PIB: 249-079-5
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Tuam Tshoj Tus Nqi Zoo Glycine Muaj Qib CAS: 56-40-6
Glycine: amino acid (qib kev lag luam) Molecular mis: C2H5NO2 Molecular nyhav: 75.07 Dawb monoclinic system los yog hexagonal siv lead ua, los yog dawb crystalline hmoov.Nws yog odorless thiab muaj ib tug tshwj xeeb qab zib saj.Tus txheeb ze ntom ntom 1.1607.Melting point 248 ℃ (decomposition).PK & rsquo;1(COOK) yog 2.34, PK & rsquo;2(N + H3) yog 9.60.Soluble hauv dej, solubility hauv dej: 67.2g / 100ml ntawm 25 ℃;39.1g / 100ml ntawm 50 ℃;54.4g / 100ml ntawm 75 ℃;67.2g / 100ml ntawm 100 ℃.Nws yog qhov nyuaj heev kom yaj hauv ethanol, thiab txog 0.06g yog yaj hauv 100g ntawm ethanol kiag li.Yuav luag insoluble hauv acetone thiab ether.Reacts nrog hydrochloric acid los tsim hydrochloride.PH (50 g / L tov, 25 ℃) = 5.5 ~ 7.0
Glycine amino acid CAS 56-40-6 Aminoacetic acid
Khoom npe: GlycineCAS: 56-40-6 Nr
