Nruab nrab

  • 2-Amino-p-cresol

    2-Amino-p-cresol

    Siv los ua cov xim nruab nrab, thiab tseem siv rau hauv kev npaj cov fluorescent whitening agent dye intermediates, thiab siv hauv kev tsim cov fluorescent whitening agent DT.

  • O-Amino-p-Chlorophenol

    O-Amino-p-Chlorophenol

    Kev tsim tawm ntawm 2-nitro-p-chlorophenol: Siv p-chlorophenol ua raw khoom, nitrification nrog nitric acid.Ntxiv cov distilled p-chlorophenol maj mam mus rau hauv lub tank stirred nrog 30% nitric acid, ua kom kub ntawm 25-30., do li 2 teev, ntxiv dej khov kom txias kom qis dua 20, precipitate, lim, thiab ntxuav lub ncuav mog qab zib lim rau Congo Liab, cov khoom 2-nitrop-chlorophenol tau txais.

  • O-Amino-P-Butyl Phenol

    O-Amino-P-Butyl Phenol

    Ua kom fluorescent whitening agents OB, MN, EFT, ER, ERM thiab lwm yam khoom.

  • Phthaldehyde

    Phthaldehyde

    Analytical reagents nyob rau hauv cov tshuaj teb: raws li ib tug amine alkaloid reagent, nws yog siv los txiav txim thawj amine thiab peptide daim ntawv cog lus decomposition khoom los ntawm txoj kev fluorescence.2. Organic synthesis: kuj yog tshuaj nruab nrab.3. Fluorescent reagent, siv rau pre-kem HPLC kev sib cais ntawm cov amino acid derivatives thiab ntws cytometry los ntsuas thiol pawg protein.

  • Sodium o-Sulfonate Benzaldehyde

    Sodium o-Sulfonate Benzaldehyde

    Rau cov synthesis ntawm fluorescent whitening agent CBS, triphenylmethane dye thiab mothproofing agent N

  • O-toluenitrile

    O-toluenitrile

    Siv los ua cov khoom siv tseem ceeb rau kev tsim cov fluorescent whitening agents, thiab tseem tuaj yeem siv rau hauv kev lag luam dye, tshuaj, roj hmab thiab tshuaj tua kab.

  • Ophthalic Acid

    Ophthalic Acid

    Txoj kev npaj yog tias o-xylene txuas ntxiv oxidized nrog huab cua nyob rau hauv lub xub ntiag ntawm ib tug cobalt naphthenate catalyst ntawm cov tshuaj tiv thaiv kub ntawm 120-125 ° C thiab ib tug siab ntawm 196-392 kPa nyob rau hauv ib tug oxidation ntauwd kom tau ib tug tiav cov khoom.

  • O-methoxybenzaldehyde

    O-methoxybenzaldehyde

    Los ntawm salicylaldehyde los ntawm methylation cov tshuaj tiv thaiv nrog dimethyl sulfate.Sib tov 3kg ntawm sodium hydroxide rau hauv 30% aqueous tov, ntxiv 12.2kg salicylaldehyde thiab 80L dej hauv qab nplawm, thiab kub kom npau npau.Maj mam ntxiv 12.9kg ntawm dimethyl sulfate, khaws cov tshuaj tiv thaiv refluxed rau li 3h tom qab ntxiv, txuas ntxiv reflux rau 2-3h tom qab Chemicalbook…

  • O-Nitro-p-cresol

    O-Nitro-p-cresol

    Cov khoom no yog cov organic nruab nrab.Siv rau hauv kev tsim cov dyes, fluorescent whitening agent DT, herbicides, thiab lwm yam.

  • O-Nitro-p-tert-butylphenol

    O-Nitro-p-tert-butylphenol

    Tom qab txo qis, nws tuaj yeem siv los ua cov khoom siv qib siab kho qhov muag brightener tus neeg saib xyuas, xws li optical brightener tus neeg saib xyuas OB.

  • O-nitrophenol

    O-nitrophenol

    o-nitrochlorobenzene yog hydrolyzed thiab acidified los ntawm sodium hydroxide tov.Ntxiv 1850-1950 l ntawm 76-80 g / L sodium hydroxide tov rau hauv lub lauj kaub hydrolysis, thiab tom qab ntawd ntxiv 250 kg ntawm fused o-nitrochlorobenzene.Thaum nws yog rhuab mus rau 140-150 ℃ thiab lub siab yog hais txog 0.45MPa, cia rau 2.5h, ces tsa nws mus rau 153-155 ℃ thiab lub siab yog hais txog 0.53mpa, thiab khaws cia rau 3h.

  • Ortho Amino Phenol

    Ortho Amino Phenol

    1. Dye intermediates, siv nyob rau hauv kev tsim cov sulfur dyes, azo dyes, fur dyes thiab fluorescent whitening agent EB, thiab lwm yam. Nyob rau hauv kev lag luam tshuaj tua kab, nws yog siv raws li raw khoom ntawm insecticide phoxim.

    2. Nws yog tsuas yog siv rau kev ua kua qaub mordant Blue R, sulfurized daj xim av, thiab lwm yam. nws kuj yuav siv tau raws li plaub dye.Hauv kev lag luam tshuaj pleev ib ce, nws yog siv los ua cov plaub hau dyes (raws li kev sib koom tes dyes).

    3. Kev txiav txim siab ntawm cov nyiaj thiab tin thiab pov thawj ntawm kub.Nws yog qhov nruab nrab ntawm diazo dyes thiab sulfur dyes.