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Nhamba yeCAS: 135-19-3
Molecular formula: C10H8O
Molecular uremu: 144.17
EINECS nhamba: 205-182-7

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Zvepakati;ZvinonhuhwiriraCompounds;RuvaraWakare&RelatedCompounds;Developer;Alfabheti;BioactiveSmallMolecules;BiochemicalsandReagents;Mabhuroko ekuvaka;doro;MICROCIDIN;pigments;Fluorescent;Naphthalene;DyestuffIntermediates;AromastuffIntermediates;AromastuffIntermediates;BiffoxyIntermediates sis;Bigenology;OrganicChemical ;ParticlesandStains;pHSSensitiveProbesandIndicators;

2-naphthol kushandiswa uye synthesis nzira

Chemical properties:machena anopenya maflakes kana hupfu chena. Isoluble mumvura, soluble mu ethanol, ether, chloroform, glycerin uye alkali solutions.

Shandisa:
1. Inoshandiswa mukugadzirwa kweTobias acid, J acid, 2,3 acid uye azo dyes, uye zvakare yakasvibiswa yerabha antioxidants, mineral processing agents, fungicides, antifungal agents, preservatives, nezvimwewo.
2. Sekuchengetedza, nyika yangu inotaura kuti inogona kushandiswa kuchengetedza citrus, iyo yakawanda inoshandiswa yakawanda ndeye 0.1g / kg, uye mari yakasara haisi kupfuura 70mg / kg.
3. Ethylnaphthol, inozivikanwawo se β-naphthol uye 2-naphthol, iri pakati pemiti yekukura regulator naphthoxyacetic acid.
4. Inoshandiswa sechinhu chekuchengetedza chikafu. Maererano nenyika yedu, inogona kushandiswawo kuchengetedza citrus. Iyo yakawanda yekushandisa yakawanda ndeye 0.1g / kg, uye yakasara mari haisi kupfuura 70mg/kg.
5. Inoshandiswa seanalytical reagent, ethylene, carbon monoxide absorbent uye fluorescent indicator.
6. Zvakakosha organic raw materials uye dhayi yepakati, inoshandiswa mukugadzirwa kweToubic acid, butyric acid, β-naphthol-3-carboxylic acid, uye inoshandiswa mukugadzira anti-aging agent D, anti-aging agent DNP nemamwe anti -aging agents, organic pigments uye fungicides Mira.
7. Inoshandiswa mukugadzirwa kweTobias acid, J acid, 2.3-acid, uye inoshandiswa mukugadzirira anti-aging agent D, anti-aging agent DNP nemishonga inorwisa kukwegura, organic pigments uye fungicides.
8. Kuongororwa kwebromine, chlorine, chlorate, niobium, mhangura, nitrite uye potassium. Fluorescence Chemicalbook photodetection substrate ye phenolsulfonyltransferase. Qualitative determination of acid-base indicators, dhayi, organic synthesis, allyl doro, methanol, chloroform, etc. Carbon monoxide, ethanol absorbent, fluorescent indicator.
9. Kuongororwa kwebromine, chlorine, chlorate, niobium, mhangura, nitrite uye potassium; kutsunga kwekabhoni monoxide, mhangura, nitrite uye potassium; qualitative kutsunga kwealyl doro, methanol, chloroform, nezvimwewo; phenolsulfon transferase Fluorescence kuyerwa substrate; ethylene absorber; fluorescent chiratidzo; acid-base chiratidzo; dye pakati.

Nzira yekugadzira:
1. Inogadzirwa kubva naphthalene kuburikidza nesulfonation uye alkali fusion. Iyo sulfonated alkali fusion nzira inzira yekugadzira inoshandiswa zvakanyanya kumba nekune dzimwe nyika, asi ine corrosion yakakomba, mutengo wakakwira, uye yakakwira biological oxygen kushandiswa mumvura yetsvina. Iyo 2-isopropylnaphthalene nzira yakagadziriswa neAmerican Cyanamide Company inoshandisa naphthalene uye propylene seyakagadzirwa kugadzira 2-naphthol seyakagadzirwa neacetone. Iyi nzira yakafanana nekugadzirwa kwe phenol nenzira ye cumene. Raw material kushandiswa quota: yakanatswa naphthalene 1170kg/t, sulfuric acid 1080kg/t, yakasimba caustic soda 700kg/t.

2.1) Sulfonated alkali yekunyungudutsa nzira. Isa naphthalene yakanatswa muhari ye sulfon uye kupisa (kunyunguduka) kusvika 140°C. Wedzera 1.085 nguva (molar ratio) concentrated sulfuric acid mukati memaminitsi makumi maviri, wedzera kutonhora, uye uchengetedze pa 160-164 ° C kwemaawa 2.5. Mhedzisiro yacho inopera apo zvinyorwa zve 2-naphthalenesulfonic acid zvinosvika 66% kana kupfuura uye iyo yose acidity i25% -27%. Iyo sulfonate ine hydrolyzed muhari yehydrolysis pa140-150 ℃ kwe1h. Zvino muhari yekusaita neutralization, neutralize with sodium hydrogen nitrite solution pa80-90°C kusvikira bepa rekuongorora dzvuku reCongo risisapinduke bhuruu. Shandisa chiutsi nemhepo kudzinga SO2 gasi, inotonhorera kusvika 30-40 ° C uye ipapo suction sefa, geza nemvura ine munyu 10%, uye ipapo suction sefa kuwana sodium 2-naphthalenesulfonate. Isa sodium hydroxide muhari yakanyunguduka yealkali, kupisa (kunyunguduka) kusvika 290°C, wobva wawedzera sodium 2-naphthalenesulfonate mumaawa angangoita matatu kusvika maalkali emahara ari 5% -6%. Pashure pacho, yakachengetwa pa 320-330 ° C kweawa imwe. Alkali melt yakanyungudutswa mumvura uye yakapfuura SO2 pa 70-80 ° C kusvikira phenolphthalein isina ruvara. Wedzera mvura kuvira uye kugeza, bvisa sodium sulfite, uye wozobvisa mvura uye distill pasi pekumanikidzwa kwakaderedzwa kuwana chigadzirwa chapera. Goho rose i73% -74%.
2) 2-isopropylnaphthalene nzira. Chemicalbook, inoshandisa naphthalene uye propylene seyakagadzirwa, inobereka 2-naphthol panguva imwechete seyakagadzirwa neacetone.

3. Nzira yekugadzirira ndeyekuwedzera sulfuric acid kune yakanyungudutswa naphthalene pa 140 ° C, kuita sulfonation pa 162～164 ° C, hydrolyze the sulfonate, kubvisa naphthalene yakasununguka, uye kuita nesodium sulfite kuti ibudise 2-naphthalenesulfonic acid sodium munyu. . Iyo yakasimba sodium munyu uye sodium hydroxide ndeye alkali-yakanyungudutswa pa285-320 ° C, uye yozochengetwa pa 320-330 ° C kweawa imwe. Iyo alkali melt inonyungudutswa uye inopfuudzwa mu sulfur dioxide kuti acidification kuti iwane crude product, iyo inogezwa nekubviswa mvura uye yozodistirwa kuti iwane chigadzirwa.

4. Nzira yekunyungudusa alkali yekunyungudika Isa naphthalene yakanatswa mupoto ine sulfon uye kupisa (kunyunguduka) kusvika 140°C. Wedzera 1.085 nguva (molar ratio) concentrated sulfuric acid mukati me20min, wedzera tembiricha, uye chengeta pa160～164℃ kwe2.5h. Mhedzisiro yacho inopera apo zvinyorwa zve 2-naphthalenesulfonic acid zvinosvika 66% kana kupfuura uye iyo yose acidity i25% -27%. Iyo sulfonate inogadziriswa hydrolyzed muhari yehydrolysis pa140 ~ 150 ℃ kwe1h. Zvino mupoto yekusagadzikana, gadzirisa nesodium bisulfite solution pa80 ~ 90 ℃ kusvika bepa rekuongorora dzvuku reCongo risisapinduke bhuruu. Shandisa chiutsi nemhepo kudzinga SO2 gasi, inotonhorera kusvika 30-40 ° C uye ipapo suction sefa, geza nemvura ine munyu 10%, uye ipapo suction sefa kuwana sodium 2-naphthalenesulfonate. Isa sodium hydroxide muhari yakanyunguduka yealkali, kupisa (kunyunguduka) kusvika 290°C, wobva wawedzera sodium 2-naphthalenesulfonate mumaawa matatu kusvika maalkali emahara ari 5% kusvika 6%. Mushure maizvozvi, yakachengetwa pa 320-330 ° C kweawa imwe. Alkali inonyungudika yakanyungudutswa mumvura uye yakapfuura SO2 pa70 ~ 80 ℃ kusvika phenolphthalein isina ruvara. Wedzera mvura kuvira uye kugeza, bvisa sodium sulfite, uye wozobvisa mvura uye distill pasi pekumanikidzwa kwakaderedzwa kuwana chigadzirwa chapera. Goho rose i73% kusvika 74%. Iyo 2-isopropylnaphthalene nzira inoshandisa naphthalene uye propylene seyakagadzirwa kugadzira 2-naphthol nepo ne-chigadzirwa acetone.

Upstream raw material:sodium hydroxide–>sulfuric acid–>nitric acid–>anhydrous sodium sulfite–>sulfur dioxide–>naphthalene–>Congo red test paper–>sodium bisulfite solution–> 2-naphthalenesulfonic acid –>Phenolphthalein–>Sodium 2-naphthalenesulfonate–> Solid caustic soda

Zvigadzirwa zvepasi: 2-naphthylamine–>R-1,1′-bin-2-naphthol–>Pigment Tsvuku 21–>2-naphthylamine-1-sulfonic acid–>naphthylamine–>S -1,1′-Bi-2-naphthol –>1-Amino-2-naphthol-4-sulfonic acid–>Acid Blue 74–>2-hydroxy-3-naphthoic acid–>2-Fluoronaphthalene–>6-Methoxy-2-acetnaphthalene–>chrome nhema T–> 6-hydroxynaphthalene-2-boronic acid–>2-naphthol-3,6-disulfonic acid disodium- ->1-Naphthyldiazo-2-hydroxy-4-sulfonic acid yemukati munyu–>2-Amino-8-naphthol-6- sulfonic acid–>Lithol Scarlet–>Pigment Red 53:1 Chemicalbook –>Pigment Orange 5–>Pigment Red 4–>Pigment Red 3–>Mordant Black 17–>Naproxen–>Synthetic Tanning Agent HV–>Neutral Black 2S-RL –>Yapakati Nepakati BL–>2-Naphthaleneboronic acid–>2-Hydroxy-1-naphthoic acid–>Sodium 6-hydroxy-2-naphthalenesulfonate–>N-phenyl-2-naphthylamine–>Synthesis Tanning agent PNC–>2- naphthylamine-3,6,8-trisulfonic acid–>bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-1-naphthalenesulfonate Disodium hydrogen chromate–>Sodium 3-hydroxy-4-[( 2-hydroxynaphthalene)azo]-7-nitronaphthalene-1-sulfonate–>Synthetic Tanning Agent No. 9