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Dimethyl carbonate CAS 616-38-6
Dimethyl carbonate (DMC), cov khoom siv tshuaj lom neeg tsis tshua muaj toxicity, kev tiv thaiv ib puag ncig zoo thiab kev siv dav, yog ib qho tseem ceeb nruab nrab rau cov organic synthesis.Nws cov qauv molecular muaj cov pab pawg ua haujlwm xws li carbonyl, methyl thiab methoxy, thiab nws muaj ntau yam reactivity.Nws muaj cov yam ntxwv ntawm kev siv nyab xeeb, yooj yim, muaj kuab paug tsawg thiab kev thauj mus los yooj yim hauv kev tsim khoom.Dimethyl carbonate yog cov khoom cog lus "ntsuab" tshuaj vim tias o ... -
N-Methyl-2-pyrrolidinone (NMP) Cas: 872-50-4
N-methylpyrrolidone, tsis muaj xim thiab pob tshab oily kua nrog me ntsis amine tsw.Soluble nrog dej, cawv, ether, ester, ketone, halogenated hydrocarbon, aromatic hydrocarbon thiab castor roj.Tsawg volatility, zoo thermal stability thiab tshuaj stability, thiab muaj peev xwm evaporate nrog dej vapor.Muaj hygroscopicity.Sensitive rau lub teeb.N-methylpyrrolidone yog dav siv nyob rau hauv lithium roj teeb, tshuaj, tshuaj tua kab, pigment, tu tus neeg saib xyuas, insulating khoom thiab lwm yam lag luam.1. Suav n... -
5-CHLORO-N-VALERIC ACID
5-chlorovaleric acid CAS: 1119-46-6 -
5-chloro aMyl chloride
5-Chlorovaleryl Chloride, CAS: 1575-61-7 -
5-Chloroethyl-6-chloro-1,3-dihydro-2H-indole-2-one, CAS 118289-55-7
CAS Nr .: 118289-55-7
Lwm Lub Npe: 6-Chloro-5-(2-chloroethyl)-1
MF: C10H9Cl2NO
EINECS No.: 118289-55-7
Hom: Agrochemical Intermediates, Dyestuff Intermediates, Flavor & Fragrance Intermediates, Pharmaceutical Intermediates, Syntheses Material Intermediates
Purity: ≥99%
Tus Qauv Zauv: 118289-55-7
Daim ntawv thov: Ziprasidone intermediate
Cov tsos mob: Dawb hmoov
Khoom npe: 5-Chloroethyl-6-chloro-1,3-dihydro-2H-indole-2-one
Xim: Dawb hmoov -
Cycobalamin Vitamin B12 Antianemia vitamin
Cycobalamin yog ib qho ntawm cov vitamin B complexes, uas muaj zog tiv thaiv kab mob ntshav qab zib.Nws yog lub npe muab los ntawm crystallization ntawm vitamin B12, ib qho tseem ceeb tshaj plaws rau kev loj hlob ntawm cov kab mob thiab tsiaj txhu.Dhau li ntawm C, H, O, N, P thiab Co, aD-ribose conjugate ntawm 5,6-dimethe-rbenzimidazole yog ib feem ntawm nws cov qauv.AR Todd et al.muab tso rau pem hauv ntej cov qauv qauv, uas yog hu ua cyanocobalamin vim cyano yog kev sib koom tes ntawm cobalt.Qhov siab tshaj plaws nqus dej hauv cov kua dej yog 278,361,548 nm.Xyoo 1948, E.L.Rickes ntawm Tebchaws Meskas thiab E.L.Smith ntawm tebchaws United Kingdom ntawm nws tus kheej tau rho tawm cov muaju los ntawm daim siab.Txij thaum ntawd los, cov tshuaj no kuj tau txais los ntawm qee yam actinomycete (StrePtomyces griseum).
Cyanocobalamin kuj yog qhov tseem ceeb ntawm kev loj hlob ntawm npua thiab qaib, thiab nws yog tib yam khoom raws li tsiaj protein yam tsim nyog rau qe hatching.Vitamin B12, muab rau cov neeg mob uas muaj kab mob malignant ntawm 150 micrograms, tuaj yeem ua rau cov ntshav liab nce li 2 zaug, thiab 3-6 micrograms kuj tuaj yeem tsim cov teebmeem.Nyob rau hauv vivo, nws yog thauj nyob rau hauv cov ntshav nyob rau hauv daim ntawv ntawm kev sib xyaw nrog trans-cobalamin protein (a- globular protein), thiab muaj nyob rau hauv daim ntawv ntawm coenzyme nyob rau hauv ntau yam ntaub so ntswg.Ua ke nrog folic acid, nws muaj kev koom tes hauv cov metabolism ntawm methyl hloov thiab nquag methyl tiam.Thiab dhau los ua qhov tseem ceeb ntawm purine, pyrimidine thiab lwm yam biosynthesis. -
TPU rau khau nplaum,
Nws cov yam ntxwv yog: 1. Tsis muaj yellowing;2. ceev heev crystallization;3. Kub kub tsis kam.Cov khoom lag luam no muaj qhov zoo adhesion thiab kub tsis kam rau PVC, PU, roj hmab, TPR, EVA, nylon, tawv thiab lwm yam substrates.Kev nplaum zoo heev thiab kub-resistant kub tuaj yeem ua tiav yam tsis siv tus neeg sawv cev kho.Vim nws cov yam ntxwv tsis daj, nws yog qhov tshwj xeeb tshaj yog tsim rau kev sib txuas ntau yam khau dawb mus ncig.LY series polyurethane nplaum yog ob lub ntsiab lus ... -
Butyl roj hmab regeneration
Butyl reclaimed roj hmab belongs rau qeb tseem ceeb ntawm cov roj hmab reclaimed.Nrog ntau tshaj 900 butyl inner tubes li raw cov ntaub ntawv, nws yog refined los ntawm 80 mesh pom tom qab desulfurization los ntawm cov txheej txheem siab tshaj plaws decomposition.Nws muaj cov yam ntxwv ntawm lub zog zoo, siab fineness, muaj zog cua nruj thiab nplua nuj tes elasticity.Nws tuaj yeem siv ib leeg los tsim cov khoom siv roj hmab butyl xws li me me butyl inner tubes, butyl capsules, butyl sealing strips, thiab lwm yam Nws tuaj yeem siv ua ke ... -
ci dej qab zib
Khoom npe: baking soda CAS : 144-55-8 EINECS naj npawb 205-633-8 Khoom qib: zaub mov qib Particle loj: 200 (mesh) Siv cov qauv zoo: GB / t1606-2008 Lub Npe: sodium bicarbonate (baking soda) Hom: 25kg Cov tshuaj phom sij: tsis muaj Cov ntsiab lus: 99% Sodium bicarbonate, tshuaj formula NaHCO3, feem ntau hu ua baking soda.Dawb zoo siv lead ua, nws solubility hauv dej yog tsawg dua li ntawm sodium carbonate.Nws kuj yog ib qho kev lag luam chemical.Cov khoom pib decompose maj mam tsim sodium ca ... -
PPO/PPE
Daim ntawv thov ntawm PPO granules 1: Rau zus tau tej cov tshav kub-resistant qhov chaw rwb thaiv tsev tsis tshua muaj hnav resistant qhov chaw kis tau tus mob thiab hluav taws xob Cheebtsam ntawm kev kho mob 2: Nws yuav siv tau nyob rau hauv kub siab zog iav, hniav, li qub thiab lwm yam khoom yuav hloov tau siv stainless hlau 3 : Muaj peev xwm tsim cov ntsia hlau, fasteners thiab connectors Khoom Khoom * Zoo sib npaug ntawm cov khoom * CreepStiffness thiab lub zog * Creep * cuam tshuam lub zog * Zoo hluav taws xob ua haujlwm * Zoo hluav taws kub retardancy * Tshuaj lom neeg ... -
chloroprene roj hmab CR121
Neoprene, tseem hu ua chloroprene roj hmab thiab Xinping roj hmab.Cov roj hmab hluavtaws ua los ntawm α-polymerization ntawm chloroprene (2- chloro -1,3- butadiene) yog siv dav hauv cov khoom siv huab cua, viscose soles, coatings thiab foob pob hluav taws roj.Lub flake los yog thaiv nrog milky dawb, beige los yog lub teeb xim av tsos yog ib qho elastomer tsim los ntawm alpha polymerization ntawm chloroprene (xws li 2- chloro -1,3- butadiene) ua cov khoom tseem ceeb.Lub solubility parameter ntawm chloroprene roj hmab nyiaj rau δ = 9.2 ~ 9.... -
chloroprene roj hmab CR232
Neoprene, tseem hu ua chloroprene roj hmab thiab Xinping roj hmab.Cov roj hmab hluavtaws ua los ntawm α-polymerization ntawm chloroprene (2- chloro -1,3- butadiene) yog siv dav hauv cov khoom siv huab cua, viscose soles, coatings thiab foob pob hluav taws roj.Lub flake los yog thaiv nrog milky dawb, beige los yog lub teeb xim av tsos yog ib qho elastomer tsim los ntawm alpha polymerization ntawm chloroprene (xws li 2- chloro -1,3- butadiene) ua cov khoom tseem ceeb.Lub solubility parameter ntawm chloroprene roj hmab nyiaj rau δ = 9.2 ~ 9....
