Xov xwm kev lag luam
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Dab tsi yog benzophenone-4 siv rau hauv kev tu tawv nqaij
Tam sim no tib neeg muaj ntau txoj kev xaiv hauv kev tu tawv nqaij, tsuas yog cov khoom xyaw tshuaj pleev thaiv hnub muaj ntau dua 10 hom, tab sis qee qhov khoom siv kho mob zoo li kev tu tawv nqaij tiag tiag yuav ua rau peb cov tawv nqaij. Yog li yuav ua li cas peb xaiv cov khoom tu tawv nqaij zoo rau peb cov tawv nqaij? Cia peb tham txog benzophenone-4, ib qho tseem ceeb kuv ...Nyeem ntxiv -
PCA Na yog dab tsi
Nrog rau kev txhim kho kev tshawb fawb thiab thev naus laus zis niaj hnub no thiab kev txhim kho ntawm tib neeg txoj kev ua neej, zoo li qhov yuav tsum tau ua rau cov khoom siv tshuaj pleev ib ce tau nce siab dua, thiab cov tshuaj pleev ib ce uas muaj cov khoom xyaw ntuj tau dhau los ua neeg nyiam. Tod...Nyeem ntxiv -
Dab tsi yog 3-O-Ethyl-L-ascorbic acid zoo rau
3-O-Ethyl-L-ascorbic acid muaj ob lub zog ntawm cov roj hydrophilic thiab yog tshuaj lom neeg ruaj khov. 3-O-Ethyl-L-ascorbic acid, cas naj npawb 86404-04-8, muaj oleophilic thiab hydrophilic khoom raws li ib tug vitamin C derivative, uas ncua nws cov Scope ntawm daim ntawv thov, tshwj xeeb tshaj yog nyob rau hauv niaj hnub chemistry ...Nyeem ntxiv -
Dab tsi yog Glycyrrhizic Acid Ammonium Salt
Glycyrrhizic acid ammonium ntsev, koob dawb siv lead ua los yog crystalline hmoov, muaj zog qab zib, 50 mus rau 100 npaug ntawm qab zib li sucrose. Melting point 208 ~ 212 ℃. Soluble nyob rau hauv ammonia, insoluble nyob rau hauv glacial acetic acid. Glycyrrhizic acid ammonium ntsev muaj qhov qab zib muaj zog thiab yog kwv yees li 200 zaug ...Nyeem ntxiv -
Dab tsi yog polyethylene siv rau
Polyethylene (PEI) yog dej-soluble polymer. Cov concentration hauv dej ntawm cov khoom lag luam feem ntau yog 20% mus rau 50%. PEI yog polymerized los ntawm ethylene imide monomer. Nws yog ib qho cationic polymer uas feem ntau tshwm raws li cov xim tsis muaj xim rau cov kua daj lossis cov khoom nrog ntau yam ntawm qhov hnyav molecular ...Nyeem ntxiv -
Dab tsi yog o-Cymen-5-ol
O-Cymen-5-OL (IPMP) yog cov tshuaj tiv thaiv kab mob uas siv rau hauv cov tshuaj pleev ib ce thiab cov khoom zoo nkauj los tiv thaiv cov kab mob tsis zoo los ntawm kev sib npaug, yog li txuas ntxiv lub txee lub neej ntawm cov khoom. Nws yog ib tug tswv cuab ntawm IsopropyI Cresols tsev neeg thiab yog Ameslikas siv lead ua hluavtaws. Raws li kev tshawb fawb, 0 ...Nyeem ntxiv -
Dab tsi yog calcium pyrophosphate siv rau
Peb yuav tsum txhuam hniav txhua hnub, ces peb yuav tsum tau siv cov tshuaj txhuam hniav, tshuaj txhuam hniav yog ib qho khoom siv txhua hnub uas yuav tsum tau siv txhua hnub, yog li xaiv cov tshuaj txhuam hniav uas tsim nyog yog qhov tseem ceeb heev. Muaj ntau ntau hom tshuaj txhuam hniav nyob rau hauv kev ua lag luam nrog ntau lub zog, xws li ntxuav hniav dawb, ntxiv dag zog rau cov hniav thiab pr ...Nyeem ntxiv -
Dab tsi yog 2-hydroxyethyl methacrylate siv rau
2-hydroxyethyl methacrylate (HEMA) yog cov organic polymerization monomer tsim los ntawm cov tshuaj tiv thaiv ntawm ethylene oxide (EO) thiab methacrylic acid (MMA), uas muaj cov pab pawg bifunctional nyob rau hauv lub molecule. Hydroxyethyl methacrylate yog hom tsis muaj xim, pob tshab, thiab yooj yim ntws kua. Solub...Nyeem ntxiv -
Yog polyvinylpyrrolidone teeb meem
Polyvinylpyrrolidone (PVP), cas tus naj npawb 9003-39-8, pvp yog ib qho tsis-ionic polymer uas yog qhov txawv tshaj plaws, zoo tshaj plaws-kawm thiab feem ntau dav kawm tshuaj zoo ntawm N-vinyl amide polymers. Tau tsim rau hauv non-ionic, cationic, anion 3 pawg, qib kev lag luam, qib tshuaj, zaub mov gra ...Nyeem ntxiv -
Dab tsi yog Polyvinylpyrrolidone Siv Rau
Polyvinylpyrrolidone (PVP) yog dab tsi? Polyvinylpyrrolidone, abbreviated li PVP. Polyvinylpyrrolidone (PVP) yog ib qho uas tsis yog-ionic polymer compound tsim los ntawm polymerization ntawm N-vinylpyrrolidone (NVP) nyob rau hauv tej yam kev mob. Nws yog siv los ua ib qho ntxiv, ntxiv, thiab ntxiv rau hauv ntau qhov chaw xws li ...Nyeem ntxiv -
Koj puas paub 4-ISOPROPYL-3-METHYLPHENOL?
4-ISOPROPYL-3-METHYLPHENOL, luv luv li IPMP, tuaj yeem hu ua o-Cymen-5 ol / 3-Methyl-4-isopropyrphenol. Cov mis mos molecular yog C10H14O, qhov hnyav molecular yog 150.22, thiab CAS tus lej yog 3228-02-2. IPMP yog cov dawb crystalline hmoov uas yog insoluble hauv dej thiab soluble hauv cov kuab tshuaj organic. Nws ha...Nyeem ntxiv -
Yog polyglyceryl-4 laurate zoo rau daim tawv nqaij
Ntau tus neeg siv khoom pom tias qee cov tshuaj pleev ib ce muaj "polyglyceryl-4 laurate" cov tshuaj no, tsis paub txog kev ua tau zoo thiab cov nyhuv ntawm cov tshuaj no, xav paub seb cov khoom uas muaj polyglyceryl-4 laurate puas zoo. Hauv daim ntawv no, kev ua haujlwm thiab cov nyhuv ntawm polyglyceryl-4 ...Nyeem ntxiv