Nruab nrab
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Tris (hydroxymethyl) Methyl Aminomethane THAM
Feem ntau siv nyob rau hauv kws tshuaj intermediates thiab biochemical reagents.Intermediate ntawm fosfomycin, kuj tseem siv los ua vulcanization accelerator, tshuaj pleev ib ce (cream, lotion), ntxhia roj, paraffin emulsifier, lom tsis zoo, tshuaj lom neeg tsis zoo.
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M-Phthaaldehyde
M-phthaldehyde yog siv nyob rau hauv kws tshuaj intermediates, fluorescent brighteners, thiab lwm yam.
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1,4-Naphthalene Dicarboxylic Acid
1-methyl-4-acetylnaphthalene thiab potassium dichromate yog oxidized rau 18h ntawm 200-300 ℃ thiab txog 4MPa;1,4-dimethylnaphthalene kuj tuaj yeem tau los ntawm cov kua theem oxidation ntawm 120 ℃ thiab txog 3kpa nrog cobalt manganese bromide ua catalyst.
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2,5-Thiophenedicarboxylic Acid
Adipic acid thiab thionyl chloride sib tov nyob rau hauv qhov hnyav piv ntawm 1: (6-10) thiab refluxed rau 20-60 h nyob rau hauv lub xub ntiag ntawm pyridine catalyst.Cov kuab tshuaj tau evaporated thiab cov residue tau rhuab ntawm 140-160 ℃ rau 3-7 H. Thiophene-2,5-dicarboxylic acid tau txais los ntawm kev kho sodium hydroxide, acid nag lossis daus, pom, decolorization thiab purification.
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Phenylacetyl Chloride
Khaws rau hauv qhov chaw txias, qhuav thiab zoo ventilated warehouse.Khaws kom deb ntawm qhov hluav taws kub thiab qhov cua sov.Lub pob yuav tsum raug kaw thiab tsis muaj dej noo.Nws yuav tsum tau muab cais los ntawm oxidant, alkali thiab edible tshuaj, thiab sib tov cia yuav tsum tau zam.Cov khoom siv tua hluav taws ntawm cov khoom sib txuam thiab ntau npaum li cas yuav tsum tau muab.Lub chaw cia khoom yuav tsum tau nruab nrog cov khoom siv kho mob thaum muaj xwm txheej ceev thiab cov ntaub ntawv tsim nyog.
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P-cresol
Cov khoom no yog cov khoom siv raw rau kev tsim cov tshuaj antioxidant 2,6-di-tert-butyl-p-cresol thiab roj hmab antioxidant.Nyob rau tib lub sijhawm, nws tseem yog ib qho tseem ceeb raw khoom rau kev tsim tshuaj TMP thiab dye coricetin sulfonic acid.1. GB 2760-1996 yog ib hom tshuaj tsw qab uas tau tso cai siv.
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P-tolonitrile
Kev ceev faj rau kev thauj mus los: ua ntej kev thauj mus los, xyuas seb lub thawv ntim khoom puas tiav thiab kaw, thiab xyuas kom meej tias lub thawv tsis xau, tawg, poob lossis puas thaum thauj.Nws yog nruj me ntsis txwv tsis pub sib tov nrog acids, oxidants, zaub mov thiab khoom noj khoom haus additives.
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P-toluic acid
Nws yog npaj los ntawm catalytic oxidation ntawm p-xylene nrog cua.Thaum siv cov txheej txheem atmospheric siab, xylene thiab cobalt naphthenate tuaj yeem muab ntxiv rau hauv cov tshuaj tiv thaiv lub lauj kaub, thiab cua yog qhia thaum cua sov rau 90 ℃.Cov tshuaj tiv thaiv kub yog tswj ntawm 110-115 ℃ li ntawm 24 teev, thiab li 5% ntawm p-xylene hloov mus rau p-methylbenzoic acid.
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4- (Chloromethyl) Tolonitrile
Qhov nruab nrab ntawm pyrimethamine.Siv hauv kev tsim cov p-chlorobenzyl cawv;p-chlorobenzaldehyde;p-chlorobenzene acetonitrile, thiab lwm yam.
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4-tert-Butylphenol
P-tert-butylphenol muaj cov khoom siv antioxidant thiab tuaj yeem siv los ua kom ruaj khov rau roj hmab, xab npum, chlorinated hydrocarbons thiab digested fibers.UV absorbers, anti-cracking agents xws li tshuaj tua kab, roj hmab, xim, thiab lwm yam. Piv txwv li, nws yog siv los ua ib tug stabilizer rau polycarbon resin, tert-butyl phenolic resin, epoxy resin, polyvinyl chloride, thiab styrene.
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2,4,6-Trimethylaniline hmoov
2,4,6-Trimethylaniline yog ib qho nruab nrab siv dav hauv dyes, tshuaj tua kab thiab lwm yam lag luam.Cov khoom siv raw rau kev sib txuas ntawm mesitidine yog mesitylene, uas muaj nyob hauv roj av.Nrog rau kev ua tiav ntawm kev lag luam loj hauv Suav teb, cov khoom tsim tawm ntawm mesitylene tau nce ntxiv, yog li kev txhim kho ntawm nws cov khoom lag luam hauv qab tau txais ntau thiab ntau dua.
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4,4′-Bis (chloromethyl) -1,1′-Biphenyl
Qhov tseem ceeb nruab nrab rau kev sib txuas ntawm biphenyl bisphenylacetylene fluorescent whitening agent CBS-X thiab CBS-127.Nws kuj tseem siv tau los ua cov tshuaj los yog resin intermediate.
