English synonyms: ci37500;

CAS Number: 135-19-3
Formulae hypotheticae: C10H8O
Pondus hypotheticum: 144.17
EINECS number: 205-182-7

Genera cognata:

Media; AromaticCompounds, ColorFormer & RelatedCompounds, Developer; Alphabetical, BioactiveSmallMolecules; BiochemicalsandReagents, BuildingBlocks, Vocatus, MICROCIDIN, pigmenta, Fluorescent, Naphthalene, DyestuffIntermediates, Aromata; ology; OrganicChemical, ParticlesandStains, pHSensitiveProbesandIndicators;

2-naphtholus usus et synthesis methodus

Proprietates chemicae:crus album or tunsum cerussa. In aqua solubile, in ethanolo, aethere, chloroformi, glycerino et alcali solutionibus solutum.

Utere:
1. Ponitur in praeparatione acido Tobiae, acido J, 2,3 acido et azo tingui, et est etiam materia rudis globulus facilis, agentibus mineralibus processus, fungicides, agentibus antifungalis, medicaminibus, etc.
2. Patria mea conservativa ponit se ad conservationem citri adhiberi posse, maximus usus quantitatis est 0.1g/kg, et residua copia non plus quam 70mg/kg.
3. Ethylnaphthol, etiam β-naphthol et 2-naphthol notum, est medium plantae incrementum acidum naphthoxyaceticum moderantis.
4. Usus in feed conservans. Secundum patriam potest etiam adhiberi ad conservationem citri. Usus maximus moles 0.1g/kg est, et residua copia non plus quam 70mg/kg.
5. Adhibetur ut reagens analytica, ethylene, carbo monoxidus bibulus et indicator fluorescens
6. Materiae rudis organicae momenti et intermedia tingunt, adhibita in fabricando acidum Toubicum, acidum butyricum, β-naphthol-3-acidi carboxylici, et adhibita in fabricando agentis anti-canescente D, agente anti-canescente DNP et aliis anti -aging agentium, pigmenta organica et fungicides Exspecta.
7. Adhibetur in praeparatione acidi Tobiae, acidi J, 2.3-acidi, et usus est in praeparatione agentis anti-canus D, agentis anti-senescentis DNP, eiusque agentium anti-canum, pigmentorum organicorum et fungiciderum.
8. Comprobatio brominis, chlorini, chlorati, niobii, aeris, nitritae et potassii. Fluorescens chemicalbook photodetection subiectae phenolsulfonyltransferase. Qualitativa determinatio indicibus acidi-basi, tincturae, synthesis organicae, alcoholis allyl, methanoli, chloroformis, etc. Carbonis monoxidi, ethanoli bibuli, indicatorum fluorescentium.
9. Comprobatio brominis, chlorini, chlorati, niobii, aeris, nitritae et potassii; determinatio carbonis monoxidi, aeris, nitritae et potassii; qualitativa determinatio alcoholis allyl, methanoli, chloroformis, etc.; phenolsulfon transferase Fluorescentiae mensurae distent; ethylene absorber; indicator; acidi-basi indicator; tingere medium.

Modus productionis:
1. Fit ex naphthalene per sulfonationem et fusione alcali. Methodus fusionis alcali sulfonatae est methodus productionis late domi et foris adhibita, sed gravem habet corrosionem, magnum sumptus, et consumptionem oxygenii biologici altam in wastewater. The 2-isopropylnaphthalene methodus a Cyanamide Americana Societas effecta utitur naphthalene et propylene ut materiae rudis ad 2-naphthol ut by-productum ex acetone producendum. Haec methodus similis cum methodo cumene productioni phenol. Materia cruda consummatio quota: naphthalene purgatus 1170kg/t, acidum sulphuricum 1080kg/t, nitri solidi caustici 700kg/t.

2.1) Alcali sulfonated methodo liquefaciendi. Naphthalen purgatum pone in olla sulfonationis et caloris ad 140°C. Adde 1.085 temporibus (ratio molaris) acidum sulphuricum contractum intra 20 minuta, temperaturam auge, et retine ad 160-164°C pro 2.5 horis. Reactio terminatur cum contentum acidi 2-naphthalenesulfonici attingit 66% vel plus et totum acorem 25%-27% est. Sulfonate hydrolysa in olla hydrolysi 140-150 pro 1h. Deinde in urna neutralization, sodium hydrogenii nitritae solutionis ad 80-90°C corrumpendum donec Congo charta rubra testium caeruleum non vertit. Vapore et aere utere ad gasorum SO2 depellendum, refrigerandum ad 30-40°C et postea suctu spargendum, lava cum aqua salsa 10%, et tunc colum ad sodium 2-naphthalenesulfonate obtinendum. Natrium sodium pone in olla liquante, calefaciendo ad 290°C, et adde sodium 2-naphthalenesulfonatum circa 3 horas usque ad liberum alcali contentum 5%-6%. Postmodum observatum est hora 1 320-330°C. Alkali liquefactum aqua diluitur et SO2 in 70-80°C transigitur, donec phenolphthalein sine colore est. Adde aquam coquere et lavare, sodium sulfite remove, et deinde dehydrare et subtus pressione destillare ad operis operis obtinendum. Totalis fructus 73%-74% est.
2) Methodus isopropylnaphthalene II. Liber chemicus, qui naphthalene et propylene ut materiis rudibus utitur, 2-naphthol simul ac by-productum acetonae producit.

3. Methodus praeparandi acidum sulphuricum ad naphthalenem liquefactum ad 140°C addere est, sulfonationem facere ad 162～164°C, hydrolyzare sulfonatem, naphthalen liberum exsufflare, et cum sodio sulfite agere, ut acidum 2-naphthalenesulfonicum salis sodium producat. . Solidum sodium sal et sodium hydroxidum alcali liquefactum ad 285-320°C, et tunc ad 320-330°C pro 1 hora conservantur. Alcali liquefactum dilutum est et in dioxide sulphuris ob acidificationem crudi producti obtinendum, qui lavatur et siccescit et postea destillatur ad aliquod opus.

4. Sulfonation alcali methodo liquefaciens pone naphthalen purgatum in olla sulfonationis et caloris ad 140°C. Adde 1.085 temporibus (ratio molaris) acidum sulphuricum contractum intra 20min, temperiem auge, et illud serva 160～164℃ pro 2.5h. Reactio terminatur cum contentum acidi 2-naphthalenesulfonici attingit 66% vel plus et totum acorem 25%-27% est. In olla hydrolysi sulfonate hydrolyzata 140～150℃ pro 1h. Deinde in olla neutralizationis, solutionem sodium bisulfite corrumpunt in 80~90℃ donec Congo charta rubra testium caeruleum non vertit. Vapore et aere utere ad gasorum SO2 depellendum, refrigerandum ad 30-40°C et postea suctu spargendum, lava cum aqua salsa 10%, et tunc colum ad sodium 2-naphthalenesulfonate obtinendum. Natrium pone in olla liquante, calefaciendo ad 290°C, et adde sodium 2-naphthalenesulfonatum circa 3 horas usque ad liberum alcali contentum 5% ad 6%. Deinde servabatur hora 1 320-330°C. Alkali liquefactum aqua diluitur et SO2 in 70~80 transigitur, donec phenolphthalein sine colore est. Adde aquam coquere et lavare, sodium sulfite remove, et tunc dehydrare et subtus pressione destillare ad operis operis obtinendum. Totalis fructus 73% ad 74% est. Methodus 2-isopropylnaphthalenis utitur naphthalene et propylene ut materiae rudis ad 2-naphtholum producendum cum acetone producto.

Materia fluminis rudis:sodium hydroxide-> acidum sulphuricum-> acidum nitricum-> anhydroum sodium sulfite-> sulphur dioxide->naphthalene->congo rubeum test paper-> sodium bisulfite solution-> acidum 2-naphthalenesulfonic -> Phenolphthalein-> Natrium 2-naphthalenesulfonate-> Nitri adurentibus solidum

Amni products: 2-naphthylamine->R-1,1′-bin-2-naphthol-> Pigmentum rubrum 21->2-naphthylamine-sulfonicum acidum->naphthylamine->S -1,1′-Bi-2-naphthol. ->1-Amino-2-naphthol-4-sulfonicum acid->Acid Blue 74->2-hydroxy-3-acidi-naphthoicum->2- Fluoronaphthalene->6-methoxy-2-acetnaphthalene->chrome nigrum T-> Acidum disodium 6-hydroxynaphthalene-2-boronicum>2-naphthol-3,6-disulfonicum acidum disodium- ->1-naphthyldiazo-2-hydroxy- 4-sulfonicum acidum internum salt->2-Amino-8-napht-6- Acidum sulfonic->Lithol coccineum-> Pigmentum rubrum 53:1 Chemicalbook --> Pigmentum Aureum 5-> Pigmentum rubrum 4-> Pigmentum rubrum 3-> Mordax Nigrum 17->Naproxen->Syntheticum Tanning Agent HV-> Neutrum Nigrum 2S-RL ->Medium Nigrum BL->Acidum Naphthaleneboronicum 2-> acidum 2-hydroxy-1-naphthoicum->Sodium 6-hydroxy-2-naphthalenesulfonate->N-phenyl-2-naphthylamine->Synthesis Tanning agens PNC->2- naphthylamine-3,6,8-acidum trisulfonic->bis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo] -1-naphthalenesulfonate Disodium hydrogenii chromate->Sodium 3-hydroxy-4-[( 2-hydroxynaphthalene)azo]-7-nitronaphthalene-1-sulfonate->Synthetic Tanning Agent No.