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Chaw Tsim Khoom Zoo Nqe Oxalic Acid CAS: 144-62-7
Oxalic acid yog ib qho dicarboxylic acid muaj zog uas tshwm sim hauv ntau cov nroj tsuag thiab zaub, feem ntau yog nws cov ntsev calcium lossis potassium. Oxalic acid yog tib qho sib xyaw ua ke uas ob pawg carboxyl sib koom ua ke ncaj qha; vim li no oxalic acid yog ib qho ntawm cov organic acids muaj zog tshaj plaws. Tsis zoo li lwm cov carboxylic acids (tshwj tsis yog formic acid), nws yooj yim oxidized; qhov no ua rau nws muaj txiaj ntsig zoo li tus neeg sawv cev txo qis rau kev thaij duab, tshuaj dawb, thiab tshem tawm cov kua mem. Oxalic acid feem ntau yog npaj los ntawm kev ua kom sov sodium formate nrog sodium hydroxide los tsim sodium oxalate, uas hloov pauv mus ua calcium oxalate thiab kho nrog sulfuric acid kom tau txais oxalic acid dawb.
Cov concentration ntawm oxalic acid yog qis heev hauv feem ntau cov nroj tsuag thiab cov khoom noj uas ua los ntawm cov nroj tsuag, tab sis muaj txaus hauv spinach, chard thiab beet zaub ntsuab kom cuam tshuam rau kev nqus ntawm cov calcium uas cov nroj tsuag no kuj muaj.
Nws yog tsim tawm hauv lub cev los ntawm kev ua kom cov glyoxylic acid lossis ascorbic acid. Nws tsis yog metabolized tab sis tso tawm hauv cov zis. Nws yog siv ua cov tshuaj analytical thiab tus neeg sawv cev txo qis dav dav. Oxalic acid yog ib qho tshuaj tua kab mob ntuj siv rau kev kho mob tawm tsam cov kab mob varroa hauv cov pawg uas tsis muaj / tsawg brood, pob khoom, lossis swarms. Vaporized oxalic acid yog siv los ntawm qee tus neeg yug beekeepers ua tshuaj tua kab tawm tsam parasitic Varroa mite. -
Chaw Tsim Khoom Zoo Tus Nqi Xanthan Gum Qib Kev Lag Luam CAS: 11138-66-2
Xanthan gum, tseem hu ua Hanseonggum, yog ib hom microbial exopolysaccharide uas tsim los ntawm Xanthomnas campestris nrog carbohydrate ua cov khoom siv tseem ceeb (xws li hmoov txhuv nplej siab) los ntawm kev fermentation engineering. Nws muaj rheology tshwj xeeb, solubility dej zoo, ruaj khov rau cua sov thiab acid puag, thiab muaj kev sib raug zoo nrog ntau yam ntsev. Ua tus neeg sawv cev thickening, suspension agent, emulsifier, stabilizer, tuaj yeem siv dav hauv zaub mov, roj av, tshuaj thiab lwm yam ntau dua 20 kev lag luam, tam sim no yog lub ntiaj teb qhov loj tshaj plaws ntawm kev tsim khoom thiab siv dav heev microbial polysaccharide.
Xanthan gum yog hmoov daj dawb dawb uas txav tau, me ntsis tsw ntxhiab. Yaj tau hauv dej txias thiab dej kub, cov kua nruab nrab, tiv taus khov thiab yaj, tsis yaj hauv ethanol. Dej dispersion, emulsification rau hauv cov hydrophilic viscous colloid ruaj khov.
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Chaw Tsim Khoom Zoo Tus Nqi DINP Qib Kev Lag Luam CAS：28553-12-0
Diisononyl phthalate (DINP)：Cov khoom no yog cov kua roj pob tshab uas muaj ntxhiab me ntsis. Nws yog ib qho plasticizer tseem ceeb uas muaj ntau yam zoo heev. Cov khoom no yaj tau hauv PVC, thiab yuav tsis poob txawm tias siv ntau npaum li cas los xij. Kev ya raws, kev hloov pauv thiab kev tsis muaj tshuaj lom zoo dua li DOP (dioctyl phthalate), uas tuaj yeem ua rau cov khoom tiv taus lub teeb zoo, tiv taus cua sov, tiv taus kev laus thiab hluav taws xob rwb thaiv tsev, thiab kev ua tau zoo dua li DOP. Vim tias cov khoom tsim los ntawm cov khoom no muaj kev tiv taus dej zoo thiab kev rho tawm zoo, tsis muaj tshuaj lom, tiv taus kev laus, kev ua tau zoo rwb thaiv tsev hluav taws xob zoo, yog li nws siv dav hauv cov khoom ua si zaj duab xis, hlau, cable.
Piv nrog DOP, qhov hnyav molecular loj dua thiab ntev dua, yog li nws muaj kev ua tau zoo dua qub, tiv taus kev tsiv teb tsaws chaw, kev ua tau zoo tiv thaiv kab mob, thiab tiv taus kub siab dua. Raws li qhov xwm txheej, cov nyhuv plasticization ntawm DINP yog qhov phem dua li DOP me ntsis. Feem ntau ntseeg tias DINP zoo dua rau ib puag ncig dua li DOP.
DINP muaj qhov zoo tshaj plaws hauv kev txhim kho cov txiaj ntsig extrusion. Nyob rau hauv cov xwm txheej ua extrusion ib txwm muaj, DINP tuaj yeem txo qhov viscosity ntawm cov khoom sib tov dua li DOP, uas pab txo qhov siab ntawm qhov qauv chaw nres nkoj, txo qhov hnav khoom siv lossis nce qhov tsim tau (txog li 21%). Tsis tas yuav hloov cov mis khoom thiab cov txheej txheem tsim khoom, tsis tas yuav nqis peev ntxiv, tsis tas yuav siv zog ntxiv, thiab tswj cov khoom zoo.
DINP feem ntau yog cov roj ua kua, tsis yaj hauv dej. Feem ntau thauj los ntawm cov tsheb thauj khoom, cov thoob hlau me me 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 lub tuam txhab yeej, Nyiv lub tuam txhab Concord, thiab South Asian lub tuam txhab hauv Taiwan. Tam sim no, tsis muaj lub tuam txhab hauv tsev tsim INA. Txhua tus neeg tsim khoom uas tsim DINP hauv Suav teb txhua tus yuav tsum tau los ntawm cov khoom xa tuaj.
Cov Lus Txhais: baylectrol4200; di-'isononyl'phthalate, sib tov ntawm cov tshuaj; diisononylphthalate, dinp; dinp2; dinp3; enj2065; isonyl cawv, phthalate (2:1); jayflexdinp
CAS: 28553-12-0
MF: C26H42O4
EINECS:249-079-5
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Chaw Tsim Khoom Zoo Nqe Glycine Qib Kev Lag Luam CAS: 56-40-6
Glycine: amino acid (qib kev lag luam) Cov mis mos molecular: C2H5NO2 Qhov hnyav molecular: 75.07 Lub cev dawb monoclinic lossis hexagonal siv lead ua, lossis hmoov crystalline dawb. Nws tsis muaj ntxhiab thiab muaj qhov saj qab zib tshwj xeeb. Qhov ceev sib piv 1.1607. Melting point 248 ℃ (decomposition). PK & rsquo; 1 (COOK) yog 2.34, PK & rsquo; 2 (N + H3) yog 9.60. Yaj hauv dej, yaj hauv dej: 67.2g / 100ml ntawm 25 ℃; 39.1g / 100ml ntawm 50 ℃; 54.4g / 100ml ntawm 75 ℃; 67.2g / 100ml ntawm 100 ℃. Nws nyuaj heev rau yaj hauv ethanol, thiab kwv yees li 0.06g yaj hauv 100g ntawm ethanol kiag li. Yuav luag tsis yaj hauv acetone thiab ether. Reacts nrog hydrochloric acid los ua hydrochloride. PH (50g / L kua, 25 ℃) = 5.5 ~ 7.0
Glycine amino acid CAS 56-40-6 Aminoacetic acid
Lub Npe Khoom: GlycineCAS: 56-40-6
