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Inombolo ye-CAS: 135-19-3
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Indlela yokusebenzisa kunye nokudibanisa i-2-naphthol

Iimpawu zekhemikhali:Iiflakes ezimhlophe ezikhazimlayo okanye umgubo omhlophe. Ayinyibiliki emanzini, inyibilika kwi-ethanol, i-ether, i-chloroform, i-glycerin kunye nezisombululo ze-alkali.

Sebenzisa:
1. Isetyenziswa ekulungiseleleni i-Tobias acid, i-J acid, i-2,3 acid kunye ne-azo dyes, kwaye ikwayimveliso eluhlaza ye-antioxidant yerabha, ii-arhente zokucubungula izimbiwa, ii-fungicides, ii-arhente ze-antifungal, izithinteli zokubulala iintsholongwane, njl.njl.
2. Njengesigcini-zitya, ilizwe lam limisela ukuba singasetyenziselwa ukugcinwa kweziqhamo ze-citrus, isixa esiphezulu sokusetyenziswa yi-0.1g/kg, kwaye isixa esiseleyo asidluli kwi-70mg/kg.
3. I-Ethylnaphthol, ekwaziwa ngokuba yi-β-naphthol kunye ne-2-naphthol, iphakathi kwe-naphthoxyacetic acid yokulawula ukukhula kwezityalo.
4. Isetyenziswa njengesigcini sokutya. Ngokwelizwe lethu, ingasetyenziselwa ukugcina iziqhamo ze-citrus. Ubungakanani obuphezulu bokusetyenziswa yi-0.1g/kg, kwaye ubuninzi obuseleyo abudluli kwi-70mg/kg.
5. Isetyenziswa njenge-reagent yohlalutyo, i-ethylene, i-carbon monoxide absorbent kunye ne-fluorescent indicator
6. Izinto ezibalulekileyo zendalo kunye nezinto ezisetyenziswa kwidayi, ezisetyenziswa ekwenziweni kweToubic acid, i-butyric acid, i-β-naphthol-3-carboxylic acid, kwaye zisetyenziswa ekwenziweni kwe-anti-aging agent D, i-anti-aging agent DNP kunye nezinye izinto ezilwa nokuguga, ii-organic pigments kunye ne-fungicides.
7. Isetyenziswa ekulungiseleleni i-Tobias acid, i-J acid, i-2.3-acid, kwaye isetyenziswa ekulungiseleleni i-anti-aging agent D, i-anti-aging agent DNP kunye nee-anti-aging agents zayo, ii-organic pigments kunye ne-fungicides
8. Ukuqinisekiswa kwe-bromine, i-chlorine, i-chlorate, i-niobium, i-copper, i-nitrite kunye ne-potassium. I-Fluorescence Chemicalbook photodetection substrate ye-phenolsulfonyltransferase. Ukuqinisekiswa komgangatho wezalathisi ze-acid-base, iidayi, i-organic synthesis, i-allyl alcohol, i-methanol, i-chloroform, njl. I-Carbon monoxide, i-ethanol absorbent, i-fluorescent indicator.
9. Ukuqinisekiswa kwe-bromine, i-chlorine, i-chlorate, i-niobium, i-copper, i-nitrite kunye ne-potassium; ukuqinisekiswa kwe-carbon monoxide, i-copper, i-nitrite kunye ne-potassium; ukuqinisekiswa komgangatho we-allyl alcohol, i-methanol, i-chloroform, njl.njl.; i-phenolsulfon transferase yokulinganisa i-Fluorescence substrate; i-ethylene absorber; i-fluorescent indicator; i-acid-base indicator; i-dye intermediate.

Indlela yokuvelisa:
1. Yenziwe nge-naphthalene ngokusebenzisa i-sulfonation kunye ne-alkali fusion. Indlela ye-sulfonated alkali fusion yindlela yemveliso esetyenziswa kakhulu ekhaya nakwamanye amazwe, kodwa inomhlwa omkhulu, iindleko eziphezulu, kunye nokusetyenziswa okuphezulu kwe-oksijini yebhayoloji emanzini amdaka. Indlela ye-2-isopropylnaphthalene eyenziwe yi-American Cyanamide Company isebenzisa i-naphthalene kunye ne-propylene njengezinto eziluhlaza ukuvelisa i-2-naphthol njengemveliso ye-acetone. Le ndlela ifana nemveliso ye-phenol ngendlela ye-cumene. I-Raw material consumption quota: i-refined naphthalene 1170kg/t, i-sulfuric acid 1080kg/t, i-solid caustic soda 700kg/t.

2.1) Indlela yokunyibilikisa i-alkali exutywe ne-sulfonation. Beka i-naphthalene ecociweyo kwimbiza ye-sulfonation uze uyifudumeze (uyinyibilikise) ukuya kwi-140°C. Yongeza i-1.085 (i-molar ratio) i-sulfuric acid exineneyo kwimizuzu engama-20, yonyusa ubushushu, kwaye uyigcine kwi-160-164°C kangangeeyure ezingama-2.5. Impendulo iphela xa umxholo we-2-naphthalenesulfonic acid ufikelela kwi-66% okanye ngaphezulu kwaye i-acidity iyonke yi-25%-27%. I-sulfonate i-hydrolyzed kwimbiza ye-hydrolysis kwi-140-150℃ iyure e-1. Emva koko kwimbiza ye-neutralization, yinyibilikise ngesisombululo se-sodium hydrogen nitrite kwi-80-90°C de iphepha lovavanyo elibomvu laseCongo lingajiki libe luhlaza okwesibhakabhaka. Sebenzisa umphunga nomoya ukugxotha igesi ye-SO2, uyipholise ukuya kwi-30-40°C uze emva koko uyihluze, uhlambe ngamanzi anetyuwa ayi-10%, uze emva koko uyihluze ukuze ufumane i-sodium 2-naphthalenesulfonate. Beka i-sodium hydroxide kwimbiza yokunyibilikisa i-alkali, uyifudumeze (uyinyibilikise) ukuya kuma-290°C, uze wongeze i-sodium 2-naphthalenesulfonate kwiiyure ezi-3 ude umxholo we-alkali okhululekileyo ube yi-5%-6%. Emva koko, igcinwe kuma-320-330°C kangangeyure e-1. I-alkali melt ixutywe emanzini ize idlule kwi-SO2 kuma-70-80°C ude i-phenolphthalein ingabi nambala. Yongeza amanzi ukuze ubilise uze uhlambe, ususe i-sodium sulfite, uze emva koko uyikhuphe kwaye uyinyibilikise phantsi koxinzelelo oluncitshisiweyo ukuze ufumane imveliso egqityiweyo. Isivuno sisonke yi-73%-74%.
2) Indlela ye-2-isopropylnaphthalene. I-Chemicalbook, esebenzisa i-naphthalene kunye ne-propylene njengezinto eziluhlaza, ivelisa i-2-naphthol ngaxeshanye nemveliso ye-acetone.

3. Indlela yokulungiselela kukongeza i-sulfuric acid kwi-naphthalene enyibilikisiweyo kwi-140°C, ukwenza i-sulfonation kwi-162~164°C, i-hydrolyze i-sulfonate, ivuthele i-naphthalene ekhululekileyo, kwaye iphendulane ne-sodium sulfite ukuvelisa ityuwa ye-sodium ye-2-naphthalenesulfonic acid. Ityuwa ye-sodium eqinileyo kunye ne-sodium hydroxide ziyanyibilika kwi-285-320°C, emva koko zigcinwe kwi-320-330°C iyure e-1. I-alkali melt iyaxutywa kwaye idluliselwe kwi-sulfur dioxide ukuze ifumane i-acidification ukuze kufunyanwe imveliso ekrwada, ehlanjwa kwaye ikhutshwe amanzi ize ihluzwe ukuze kufunyanwe imveliso.

4. Indlela yokunyibilikisa i-alkali kwi-sulfonation Faka i-naphthalene ecociweyo kwimbiza ye-sulfonation uze uyifudumeze (uyinyibilikise) ukuya kwi-140°C. Yongeza i-1.085 amaxesha (i-molar ratio) i-sulfuric acid exineneyo ngaphakathi kwemizuzu engama-20, yonyusa ubushushu, kwaye uyigcine kwi-160～164℃ kangangeeyure ezingama-2.5. Impendulo iphela xa umxholo we-2-naphthalenesulfonic acid ufikelela kwi-66% okanye ngaphezulu kwaye i-acidity iyonke yi-25%-27%. I-sulfonate i-hydrolyzed kwimbiza ye-hydrolysis kwi-140～150℃ kangangeyure e-1. Emva koko kwimbiza ye-neutralization, yinyibilikise ngesisombululo se-sodium bisulfite kwi-80~90℃ de iphepha lovavanyo elibomvu laseCongo lingajiki libe luhlaza okwesibhakabhaka. Sebenzisa umphunga nomoya ukugxotha igesi ye-SO2, uyipholise ukuya kwi-30-40°C uze emva koko ucoce i-suction filter, uhlambe ngamanzi anetyuwa ayi-10%, uze emva koko ucoce i-suction filter ukuze ufumane i-sodium 2-naphthalenesulfonate. Beka i-sodium hydroxide kwimbiza yokunyibilikisa i-alkali, uyifudumeze (uyinyibilikise) ukuya kuma-290°C, uze wongeze i-sodium 2-naphthalenesulfonate kwiiyure ezi-3 ude umxholo we-alkali okhululekileyo ube yi-5% ukuya kwi-6%. Emva koko, igcinwe kuma-320-330°C kangangeyure e-1. I-Alkali melt ixutywe emanzini ize idlule kwi-SO2 kuma-70~80℃ ide i-phenolphthalein ingabi nambala. Yongeza amanzi ukuze ubilise uze uhlambe, ususe i-sodium sulfite, uze uyikhuphe amanzi emzimbeni uze uyinyibilikise phantsi koxinzelelo oluphantsi ukuze ufumane imveliso egqityiweyo. Isivuno sisonke singama-73% ukuya kuma-74%. Indlela ye-2-isopropylnaphthalene isebenzisa i-naphthalene kunye ne-propylene njengezinto eziluhlaza ukuvelisa i-2-naphthol ngelixa imveliso ephuma kuyo i-acetone.

Izinto ezisetyenziswa phezulu:i-sodium hydroxide–>i-sulfuric acid–>i-nitric acid–>i-anhydrous sodium sulfite–>i-sulfur dioxide–>i-naphthalene–>Iphepha lovavanyo elibomvu laseCongo–>isisombululo se-sodium bisulfite–>i-2-naphthalenesulfonic acid–>i-Phenolphthalein–>i-Sodium 2-naphthalenesulfonate–>i-Sodium caustic soda eqinileyo

Iimveliso ezisezantsi: 2-naphthylamine–>R-1,1′-bin-2-naphthol–>Pigment Red 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 black T–>6-hydroxynaphthalene-2-boronic acid–>2-naphthol-3,6-disulfonic acid disodium- ->1-Naphthyldiazo-2-hydroxy-4-sulfonic acid ityuwa yangaphakathi–>2-Amino-8-naphthol-6-sulfonic acid–>Lithol Scarlet–>Pigment Red 53:1 Chemicalbook –>I-Pigment Orenji 5–>I-Pigment Red 4–>I-Pigment Red 3–>I-Mordant Black 17–>I-Naproxen–>I-Synthetic Tanning Agent HV–>I-Neutral Black 2S-RL–>I-Medium Black BL–>2-Naphthaleneboronic acid–>2-Hydroxy-1-naphthoic acid–>I-Sodium 6-hydroxy-2-naphthalenesulfonate–>I-N-phenyl-2-naphthylamine–>I-Synthesis Tanning agent PNC–>2-naphthylamine-3,6,8-trisulfonic acid–>ibis[3-hydroxy-4-[(2-hydroxy-1-naphthyl)azo]-1-naphthalenesulfonate I-Disodium hydrogen chromate–>I-Sodium 3-hydroxy-4-[(2-hydroxynaphthalene)azo]-7-nitronaphthalene-1-sulfonate–>I-Synthetic Tanning Agent No. 9