Mawu ofanana ndi a Chingerezi: ci37500;ciazoiccouplingcomponent1;cideveloper5;ChemicalbookDeveloperA;DeveloperAMS;DeveloperBN;developera;developerams

Nambala ya CAS: 135-19-3
Fomula ya maselo: C10H8O
Kulemera kwa maselo: 144.17
Nambala ya EINECS: 205-182-7

Magulu ofanana:

Zapakati; Zosakaniza Zonunkhira; Zosakaniza Zosiyanasiyana; Wopanga; Zachilembo; Mamolekyulu Ang'onoang'ono a Bioactive; Mankhwala a Biochemical ndi Zothandizira; Ma Blocks Omanga; Mowa; MICROCIDIN; Ma Pigments; Fluorescent; Naphthalene; DyestuffIntermediates; Zonunkhira; DyestuffIntermediates; BioxyLabs; Fluortheescent; Organic; Bigenology; Zachilengedwe; Tinthu ndi Madontho; pHsensitiveProbe ndi Zizindikiro;

Njira yogwiritsira ntchito ndi kupanga ma naphthol a 2

Kapangidwe ka mankhwala:Zidutswa zoyera zonyezimira kapena ufa woyera. Zosasungunuka m'madzi, zimasungunuka mu ethanol, ether, chloroform, glycerin ndi alkali solutions.

Gwiritsani ntchito:
1. Amagwiritsidwa ntchito pokonza Tobias acid, J acid, 2,3 acid ndi azo dyes, komanso ndi chinthu chopangira ma antioxidants a rabara, zinthu zopangira mchere, fungicides, zinthu zoteteza ku ma fungal, ndi zina zotero.
2. Monga chosungira, dziko langa likunena kuti chingagwiritsidwe ntchito kusunga zipatso za citrus, kuchuluka kwakukulu kogwiritsidwa ntchito ndi 0.1g/kg, ndipo kuchuluka kotsalako sikupitirira 70mg/kg.
3. Ethylnaphthol, yomwe imadziwikanso kuti β-naphthol ndi 2-naphthol, ndi gawo la naphthoxyacetic acid yomwe imayang'anira kukula kwa zomera.
4. Imagwiritsidwa ntchito ngati chosungira chakudya. Malinga ndi dziko lathu, ingagwiritsidwenso ntchito kusunga zipatso za citrus. Kuchuluka kwa kugwiritsa ntchito ndi 0.1g/kg, ndipo kuchuluka kotsala sikoposa 70mg/kg.
5. Amagwiritsidwa ntchito ngati choyeretsera kusanthula, ethylene, carbon monoxide absorbent ndi chizindikiro cha fluorescent
6. Zipangizo zofunika kwambiri zopangira zinthu zachilengedwe ndi zinthu zina zoyeretsera utoto, zomwe zimagwiritsidwa ntchito popanga Toubic acid, butyric acid, β-naphthol-3-carboxylic acid, komanso zimagwiritsidwa ntchito popanga D, DNP ndi zinthu zina zoyeretsera ukalamba, utoto wachilengedwe ndi fungicides.
7. Amagwiritsidwa ntchito pokonza Tobias acid, J acid, 2.3-acid, ndipo amagwiritsidwa ntchito pokonza D, DNP ndi mankhwala ake oletsa kukalamba, utoto wachilengedwe ndi fungicides.
8. Kutsimikizira kwa bromine, chlorine, chlorate, niobium, copper, nitrite ndi potassium. Fluorescence Chemicalbook photodetection substrate ya phenolsulfonyltransferase. Kutsimikiza kwa makhalidwe a zizindikiro za acid-base, utoto, organic synthesis, allyl alcohol, methanol, chloroform, ndi zina zotero. Carbon monoxide, ethanol absorbent, fluorescent indicator.
9. Kutsimikizira bromine, chlorine, chlorate, niobium, copper, nitrite ndi potassium; kudziwa carbon monoxide, copper, nitrite ndi potassium; kudziwa allyl alcohol, methanol, chloroform, etc.; phenolsulfon transferase Fluorescence measurement substrate; ethylene absorber; fluorescent indicator; acid-base indicator; dye intermediate.

Njira yopangira:
1. Imapangidwa kuchokera ku naphthalene kudzera mu sulfonation ndi alkali fusion. Njira yopangira sulfonated alkali fusion ndi njira yogwiritsidwa ntchito kwambiri kunyumba ndi kunja, koma imakhala ndi dzimbiri lalikulu, mtengo wake ndi wokwera, komanso mpweya wambiri wachilengedwe womwe umagwiritsidwa ntchito m'madzi otayidwa. Njira ya 2-isopropylnaphthalene yopangidwa ndi American Cyanamide Company imagwiritsa ntchito naphthalene ndi propylene ngati zopangira zopangira kupanga 2-naphthol ngati chinthu chochokera ku acetone. Njirayi ndi yofanana ndi kupanga phenol pogwiritsa ntchito njira ya cumene. Chiwerengero cha kugwiritsa ntchito zinthu zosaphika: naphthalene yoyengedwa 1170kg/t, sulfuric acid 1080kg/t, solid caustic soda 700kg/t.

2.1) Njira yosungunula alkali yokhala ndi sulfonation. Ikani naphthalene yoyengedwa mu mphika wa sulfonation ndikutenthetsa (kusungunuka) mpaka 140°C. Onjezani 1.085 nthawi (molar ratio) concentrated sulfuric acid mkati mwa mphindi 20, onjezerani kutentha, ndikusunga pa 160-164°C kwa maola 2.5. Kuyankha kumatha pamene kuchuluka kwa 2-naphthalenesulfonic acid kufika pa 66% kapena kuposerapo ndipo acidity yonse ndi 25%-27%. Sulfonate imathiridwa mu mphika wa hydrolysis pa 140-150℃ kwa ola limodzi. Kenako mu mphika wa neutralization, sungani ndi sodium hydrogen nitrite solution pa 80-90°C mpaka pepala loyesera lofiira la Congo lisasinthe kukhala labuluu. Gwiritsani ntchito nthunzi ndi mpweya kuti muchotse mpweya wa SO2, uzizire mpaka 30-40°C kenako fyuluta yoyamwa, sambitsani ndi madzi amchere a 10%, kenako fyuluta yoyamwa kuti mupeze sodium 2-naphthalenesulfonate. Ikani sodium hydroxide mu mphika wosungunuka wa alkali, itenthetseni (isungunuke) mpaka 290°C, ndipo onjezerani sodium 2-naphthalenesulfonate patatha maola atatu mpaka kuchuluka kwa alkali kukhale 5%-6%. Pambuyo pake, idasungidwa pa 320-330°C kwa ola limodzi. Kusungunuka kwa alkali kumachepetsedwa m'madzi ndikudutsa SO2 pa 70-80°C mpaka phenolphthalein isakhale ndi mtundu. Onjezani madzi kuti awiritse ndikutsuka, chotsani sodium sulfite, kenako sungunulani madzi ndikusungunuka pansi pa kupsinjika kochepa kuti mupeze chinthu chomalizidwa. Zokolola zonse ndi 73%-74%.
2) Njira ya 2-isopropylnaphthalene. Chemicalbook, yomwe imagwiritsa ntchito naphthalene ndi propylene ngati zopangira, imapanganso 2-naphthol nthawi imodzi ndi acetone.

3. Njira yokonzekera ndi kuwonjezera sulfuric acid ku naphthalene yosungunuka pa 140°C, kuchita sulfonation pa 162~164°C, hydrolyze sulfonate, kupukusa naphthalene yaulere, ndikuchita ndi sodium sulfite kuti apange 2-naphthalenesulfonic acid sodium salt. Sodium salt yolimba ndi sodium hydroxide zimasungunuka pa 285-320°C, kenako zimasungidwa pa 320-330°C kwa ola limodzi. Kusungunuka kwa alkali kumachepetsedwa ndikuperekedwa ku sulfur dioxide kuti acidike kuti ipeze chinthu chosaphikidwa, chomwe chimatsukidwa ndikuchotsedwa madzi kenako nkusungunuka kuti chipeze chinthucho.

4. Njira yosungunula alkali pogwiritsa ntchito sulfonation. Ikani naphthalene woyengedwa mu mphika wa sulfonation ndikutentha (kusungunuka) mpaka 140°C. Onjezani 1.085 nthawi (molar ratio) concentrated sulfuric acid mkati mwa mphindi 20, onjezerani kutentha, ndikusunga pa 160～164℃ kwa maola 2.5. Zomwe zimachitika zimatha pamene kuchuluka kwa 2-naphthalenesulfonic acid kufika pa 66% kapena kuposerapo ndipo acidity yonse ndi 25%-27%. Sulfonate imathiridwa mu mphika wa hydrolysis pa 140～150℃ kwa ola limodzi. Kenako mu mphika wa neutralization, sungani ndi sodium bisulfite solution pa 80~90℃ mpaka pepala loyesera lofiira la Congo lisasinthe kukhala labuluu. Gwiritsani ntchito nthunzi ndi mpweya kuti muchotse mpweya wa SO2, uzizire mpaka 30-40°C kenako fyuluta yoyamwa, sambitsani ndi madzi amchere a 10%, kenako fyuluta yoyamwa kuti mupeze sodium 2-naphthalenesulfonate. Ikani sodium hydroxide mu mphika wosungunuka wa alkali, itenthetseni (isungunuke) mpaka 290°C, ndikuwonjezera sodium 2-naphthalenesulfonate mkati mwa maola atatu mpaka kuchuluka kwa alkali kwaulere kukhale 5% mpaka 6%. Pambuyo pake, idasungidwa pa 320-330°C kwa ola limodzi. Kusungunuka kwa alkali kumachepetsedwa m'madzi ndikudutsa SO2 pa 70~80℃ mpaka phenolphthalein isakhale ndi utoto. Onjezani madzi kuti muwiritse ndikutsuka, chotsani sodium sulfite, kenako sungunulani madzi ndikusungunuka pansi pa kupsinjika kochepa kuti mupeze chinthu chomalizidwa. Zokolola zonse ndi 73% mpaka 74%. Njira ya 2-isopropylnaphthalene imagwiritsa ntchito naphthalene ndi propylene ngati zopangira zopangira kupanga 2-naphthol pomwe acetone yochokera ku chinthucho.

Zipangizo zopangira zokwera: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–>Sodium caustic soda yolimba

Zogulitsa zotsika mtengo: 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 inner salt–>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–>Medium Black 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