J acid (2-Amino-5-naphthol-7-sulfonic Acid) CAS 87-02-5 EINECS No.: 201-718-9 zoo tshaj plaws sab saum toj 1 Hoobkas nqi qis tshaj
J acid Hom Khoom
| Cov khoom | Specifications |
| Cov ntsiab lus | ≥90% |
| Gamma Acid | ≤ 0.15% |
| Insoluble | ≤ 0.20% |
| Cov khoom | Specification |
| Qhov tshwm sim | Grey rau lub teeb xim av hmoov |
| Cov ntsiab lus (qhuav) | ≥90.0% |
| Purity (HPLC) | ≥97.0% |
| Cov ntsiab lus ntawm Gamma Acid | ≤ 1.50% |
| Cov ntsiab lus ntawm Bis J Acid | ≤ 0.20% |
| Dej | ≤ 1.0% |
| 2- Naphthylamine | ≤100ppm |
Siv tau los ntawm β-naphthylamine.Vim tias muaj zog carcinogenicity ntawm β-naphthylamine, txoj kev tsim khoom no tau raug tshem tawm, thiab tam sim no 2-naphthylamine-1-sulfonic acid yog siv los ua raw khoom los tsim J acid.Tom qab sulfonation thiab hydrolysis, 2-naphthalic acid-5-dimethyl 7-disulfonate monosodium ntsev (amino J acid) tau txais, uas yog tom qab ntawd neutralized, fused los ntawm alkali thiab acidified.J acid tau txais los ntawm sulfonation nrog fuming sulfuric acid, hydrolysis, nqus, ntxuav, alkali tov thiab acidizing ntxuav.Cov sodium ntsev dissolves hauv dej thiab qhia tau tias xiav fluorescence.Nws yog co-rhuab nrog ferric trichloride tov los ua xim av-dub los nag.
Cov cuab yeej tshuaj
1. J acid co-rhuab nrog ferric chloride tov los tsim cov xim av tsaus nti;calcium chloride tsim yellowish xim av precipitate;Base sodium ntsev yaj hauv dej pom xiav fluorescence.
2. Tsis txhob nqus cov plua plav tawm ntawm cov khoom no thiab tsis txhob kov lub qhov muag thiab tawv nqaij.
3. lom.Cov nas tsuag tau muab qhov ncauj LD50: 11500mg / kg.Toxic lossis corrosive raw cov ntaub ntawv xws li 2-aminonaphthalene sulfonic acid, fuming concentrated sulfuric acid thiab caustic soda yog siv nyob rau hauv ntau lawm.
Daim ntawv thov
Dye intermediates.Nws yog tsuas yog siv los npaj ncaj qha ntsuab lotus R, ncaj qha ceev xiav FRL, ncaj qha tshauv ceev ceev 2BL, ncaj tooj liab ntsev xiav 2R, ncaj acid resistant ntshav, ncaj liab liab, ncaj tooj liab dye navy, ceev xiav B2R, ncaj jujube GB, thiab raws li reactive scarlet, txiv kab ntxwv, ci ntsa iab txiv kab ntxwv X-GN, grey, nyom ntsuab, liab xim av thiab lwm yam dyes.Nws kuj yog siv los npaj ob J acid, scarlet acid thiab phenyl J acid.
khaws cia thiab ntim khoom
Ntim Cov Lus Qhia: 25kg / hnab
Nws yuav tsum raug kaw thiab tiv thaiv los ntawm lub teeb.Khaws rau hauv lub tsev qhuav, huv si kom tsis txhob raug tshav ntuj thiab los nag.Thaum muab tso rau, lub qhov ncauj ntawm lub thawv (nruas) yuav tsum tau nce siab kom tsis txhob xau ntawm cov khoom.
Lwm lub npe: J acid; 2-amino-5-naphthol-7-sulfonic acid;6-amino-1-naphthol-3-sulfonic acid
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