Kho cov ntaub ntawv lub cev

1. Khoom: dawb mus rau liab flaky crystals, darker nyob rau hauv cov xim thaum khaws cia nyob rau hauv huab cua ntev.

2. Ceev (g/mL, 20/4 ℃): 1.181.

3. Cov txheeb ze ntom ntom (20 ℃, 4 ℃): 1.25. 4.

Melting point (ºC): 122 ~ 123. 5.

Boiling point (ºC, ntawm atmospheric siab): 285 ~ 286. 6.

6. flash point(ºC): 153. 7. solubility: insoluble.

Solubility: insoluble hauv dej txias, soluble hauv dej kub, ethanol, ether, chloroform, benzene, glycerin thiab lye [1].

Cov ntaub ntawv kho

1, Molar refractive index: 45.97

2. Molar ntim (cm3/mol): 121.9

3, Isotonic tshwj xeeb ntim (90.2K): 326.1

4, Nto nro (3.0 dyne / cm): 51.0

5, Polarization ratio (0.5 10-24cm3): 18.22 [1]

Xwm thiab stability

kho

1. Toxicology zoo ib yam li phenol, thiab nws muaj zog corrosive. Ua rau khaus khaus tawv nqaij. Nws yog yooj yim absorbed los ntawm daim tawv nqaij. Toxic rau cov ntshav ncig thiab lub raum. Tsis tas li ntawd, nws tuaj yeem ua rau pob txha puas. Txawm hais tias tus lej tuag tsis paub, muaj cov neeg tuag los ntawm kev siv tshuaj pleev ntawm 3 mus rau 4g. Cov cuab yeej tsim khoom yuav tsum tau muab kaw thiab xau pov thawj, thiab yuav tsum tau muab ntxuav kom raws sij hawm yog txaws ntawm daim tawv nqaij. Kev cob qhia yuav tsum tau ua kom cua thiab cov khoom siv yuav tsum yog airtight. Cov neeg ua haujlwm yuav tsum hnav cov iav tiv thaiv.

2. Flammable, cov xim ntawm qhov ntev cia maj mam tsaus, ruaj khov nyob rau hauv cov huab cua, tab sis thaum raug tshav ntuj maj mam tsaus. Sublimation los ntawm cua sov, nrog irritating phenol tsw.

3. muaj nyob rau hauv lub flue gas. 4.

4. aqueous tov hloov ntsuab nrog ferric chloride [1] .

Txoj kev khaws cia

kho

1. Lined nrog cov hnab yas, hnab los yog woven hnab, net hnyav 50kg los yog 60kg ib lub hnab.

2. kev cia khoom thiab kev thauj mus los yuav tsum muaj hluav taws kub, tsis muaj dej tsis zoo, tiv thaiv kev raug mob. Khaws rau hauv qhov chaw qhuav, ventilated. Khaws thiab thauj raws li cov kev cai ntawm cov khoom siv hluav taws xob thiab tshuaj lom.

Synthetic method

kho

1. Nws yog tsim los ntawm naphthalene los ntawm sulfonation thiab alkali melting. Sulfonation alkali melting yog ib txoj kev siv ntau lawm hauv tsev thiab txawv teb chaws, tab sis qhov corrosion yog qhov hnyav, tus nqi siab thiab cov dej khib nyiab lom cov pa oxygen yog siab. Txoj kev 2-isopropylnaphthalene tsim los ntawm American Cyanamid Company siv naphthalene thiab propylene ua raw khoom, thiab tsim 2-naphthol thiab acetone by-products tib lub sij hawm, uas zoo ib yam li cov ntaub ntawv ntawm phenol los ntawm isopropylbenzene txoj kev. Cov khoom siv raw quota: 1170kg / t zoo naphthalene, 1080kg / t sulfuric acid, 700kg / t khoom caustic soda.

2. Thaum tshav kub kub lub molten ntshiab naphthalene rau 140 ℃, nrog rau qhov ratio ntawm naphthalene: sulfuric acid = 1: 1.085 (molar ratio), sulfuric acid ntawm 98% nyob rau hauv 20min, thiab sulfuric acid ntawm 98% nyob rau hauv 20min.

Cov tshuaj tiv thaiv yuav xaus thaum cov ntsiab lus ntawm 2-naphthalenesulfonic acid nce mus txog 66% thiab tag nrho cov acidity yog 25% -27%, tom qab ntawd cov tshuaj tiv thaiv hydrolysis yuav ua tiav ntawm 160 ℃ rau 1h, naphthalenes dawb yuav raug cua tshuab los ntawm dej vapor. ntawm 140-150 ℃, thiab tom qab ntawd tus txheeb ze ntom ntom ntawm 1.14 naphthalenes yuav muab ntxiv maj mam thiab sib npaug ntawm 80-90 ℃ ua ntej. Sodium sulfite tov yog neutralized kom txog thaum Congo liab daim ntawv xeem tsis hloov xiav. Kev tshwm sim ntawm cov roj sulfur dioxide tsim nyob rau lub sijhawm nrog kev tshem tawm cov pa, cov khoom nruab nrab txias txias rau 35 ~ 40 ℃ txias crystals, nqus cov crystals los ntawm lim nrog 10% ntsev dej, qhuav, ntxiv rau lub xeev molten ntawm 98% sodium. hydroxide ntawm 300 ~ 310 ℃, nplawm thiab tswj 320 ~ 330 ℃, kom cov sodium 2-naphthalene sulfonate puag fused rau 2-naphthol sodium, thiab tom qab ntawd siv dej kub kom dilute lub hauv paus yaj, thiab tom qab ntawd dhau mus rau saum toj no Neutralize lub sulfur dioxide tsim los ntawm cov tshuaj tiv thaiv, acidification cov tshuaj tiv thaiv ntawm 70 ~ 80 ℃ kom txog thaum phenolphthalein tsis muaj xim. Cov khoom siv acidification yuav yog txheej txheej zoo li qub, txheej txheej sab saud ntawm cov kua rhuab mus rau boiling, zoo li qub, muab faib ua aqueous txheej, cov khoom nyoos ntawm 2-naphthol thawj rhuab lub cev qhuav dej, thiab tom qab ntawd decompression distillation, tuaj yeem ua cov khoom ntshiab.

3. Extraction thiab crystallization txoj kev tshem tawm 1-naphthol hauv 2-naphthol. Sib tov 2-naphthol thiab dej nyob rau hauv ib qho kev faib ua feem thiab cua sov rau 95 ℃, thaum 2-naphthol yog yaj, do lub sib tov kom huv si thiab txo qhov kub ntawm 85 ℃ los yog li ntawd, txias cov crystallized slurry khoom rau chav tsev kub thiab lim. Cov ntsiab lus ntawm 1-naphthol yog traceable los ntawm purity tsom xam. 4.

Nws yog tsim los ntawm 2-naphthalenesulfonic acid los ntawm alkali melting [2].

Txoj kev khaws cia

kho

1. Lined nrog cov hnab yas, hnab los yog woven hnab, net hnyav 50kg los yog 60kg ib lub hnab.

2. kev cia khoom thiab kev thauj mus los yuav tsum muaj hluav taws kub, tsis muaj dej tsis zoo, tiv thaiv kev raug mob. Khaws rau hauv qhov chaw qhuav, ventilated. Khaws thiab thauj raws li cov kev cai ntawm cov khoom siv hluav taws xob thiab tshuaj lom.

Siv

kho

1. Cov khoom tseem ceeb organic raw khoom thiab dye intermediates, siv nyob rau hauv kev tsim cov tartaric acid, butyric acid, β-naphthol-3-carboxylic acid, thiab siv nyob rau hauv lub tsim ntawm antioxidant butyl, antioxidant DNP thiab lwm yam antioxidants, organic pigments thiab fungicides.

2. Siv los ua reagent rau kev txiav txim siab ntawm sulfonamide thiab aromatic amines los ntawm nyias txheej chromatography. Nws kuj yog siv rau cov organic synthesis.

3. Nws yog siv los txhim kho cathodic polarization, refine crystallization thiab txo qhov pore loj hauv acidic tin plating. Vim tias qhov hydrophobic ntawm cov khoom no, cov ntsiab lus ntau dhau yuav ua rau gelatin condensation thiab nag lossis daus, uas ua rau muaj streaks hauv plating.

4. Mas siv nyob rau hauv zus tau tej cov kua qaub txiv kab ntxwv Z, kua qaub txiv kab ntxwv II, kua qaub dub ATT, kua qaub mordant dub T, kua qaub mordant dub A, kua qaub mordant dub R, acid complex liab B, kua qaub complex liab xim av BRRW, acid complex dub WAN , xim phenol AS, xim phenol AS-D, xim phenol AS-OL, xim phenol AS-SW, nquag ci txiv kab ntxwv X-GN, nquag ci txiv kab ntxwv K-GN, nquag liab K-1613, nquag liab K-1613, nquag ci txiv kab ntxwv X-GN, nquag ci txiv kab ntxwv K-GN. Ntshiab Purple BL, Nruab Nrab Dub BGL, Direct Copper Salt Blue 2R, Direct Sunlight Resistant Blue B2PL, Direct Blue RG, Direct Blue RW thiab lwm yam dyes [2].