Kev kho cov ntaub ntawv lub cev

1. Khoom: dawb rau liab flaky siv lead ua, tsaus dua xim thaum khaws cia rau hauv huab cua ntev.

2. Qhov Ceev (g/mL, 20/4 ℃): 1.181.

3. Qhov ceev sib piv (20 ℃, 4 ℃): 1.25. 4.

Melting point (ºC): 122 ~ 123. 5.

Lub ntsiab lus kub (ºC, ntawm qhov siab ntawm huab cua): 285 ~ 286. 6.

6. qhov taw tes ceev (ºC): 153. 7. kev yaj: tsis yaj.

Kev yaj: tsis yaj hauv dej txias, yaj hauv dej kub, ethanol, ether, chloroform, benzene, glycerin thiab lye [1].

Kev kho cov ntaub ntawv

1, Molar refractive index: 45.97

2. Molar ntim (cm3/mol): 121.9

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

4, Qhov nro ntawm qhov chaw (3.0 dyne / cm): 51.0

5、 Qhov sib piv ntawm kev sib hloov (0.5 10-24cm3): 18.22 [1]

Xwm thiab kev ruaj khov

kho kom raug

1. Kev tshuaj lom neeg zoo ib yam li phenol, thiab nws yog ib qho tshuaj muaj zog dua. Ua rau khaus tawv nqaij heev. Nws yooj yim nqus tau los ntawm daim tawv nqaij. Muaj tshuaj lom rau cov ntshav ncig thiab raum. Tsis tas li ntawd, nws tuaj yeem ua rau lub qhov muag puas tsuaj. Txawm hais tias tsis paub meej tias muaj pes tsawg tus neeg tuag los ntawm kev siv tshuaj pleev ntawm 3 txog 4g. Cov khoom siv tsim khoom yuav tsum tau kaw thiab tsis xau, thiab yuav tsum tau ntxuav tawm raws sijhawm yog tias txau rau ntawm daim tawv nqaij. Cov chaw ua haujlwm yuav tsum tau muaj cua nkag thiab cov khoom siv yuav tsum tau kaw kom nruj. Cov neeg ua haujlwm yuav tsum hnav cov khoom siv tiv thaiv.

2. Yooj yim hlawv, xim ntawm kev khaws cia ntev maj mam tsaus ntuj, ruaj khov hauv huab cua, tab sis thaum raug tshav ntuj maj mam tsaus ntuj. Sublimation los ntawm cua sov, nrog rau ntxhiab tsw phenol khaus.

3. muaj nyob rau hauv cov pa roj flue. 4.

4. cov kua dej hloov ntsuab nrog ferric chloride [1].

Txoj kev khaws cia

kho kom raug

1. Muab cov hnab yas, cov hnab looj tes lossis cov hnab ntaub qhwv rau hauv, qhov hnyav tag nrho yog 50kg lossis 60kg ib lub hnab.

2. Kev khaws cia thiab kev thauj mus los yuav tsum tiv taus hluav taws, tiv taus dej noo, tiv thaiv kev raug mob. Khaws cia rau hauv qhov chaw qhuav, muaj cua nkag. Khaws cia thiab thauj mus los raws li cov cai ntawm cov khoom siv hluav taws xob thiab tshuaj lom.

Txoj kev tsim khoom siv

kho kom raug

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

2. Ua kom cov naphthalene ntshiab uas yaj lawm kub txog 140 ℃, nrog rau qhov piv ntawm naphthalene:sulfuric acid = 1:1.085 (molar ratio), sulfuric acid ntawm 98% hauv 20 feeb, thiab sulfuric acid ntawm 98% hauv 20 feeb.

Qhov kev 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 qhov kev tshuaj tiv thaiv hydrolysis yuav raug nqa tawm ntawm 160 ℃ rau 1 teev, cov naphthalenes dawb yuav raug cua tshuab los ntawm cov dej vapor ntawm 140-150 ℃, thiab tom qab ntawd qhov ceev ntawm 1.14 naphthalenes yuav raug ntxiv qeeb qeeb thiab sib npaug ntawm 80-90 ℃ ua ntej. Cov tshuaj sodium sulfite raug neutralized kom txog thaum daim ntawv xeem liab Congo tsis hloov xiav. Cov tshuaj tiv thaiv ntawm cov pa roj sulfur dioxide uas tsim tawm raws sijhawm nrog kev tshem tawm cov pa dej, cov khoom tsis ua kom txias rau 35 ~ 40 ℃ txias cov siv lead ua, nqus cov siv lead ua los ntawm lub lim dej nrog 10% dej ntsev, qhuav, ntxiv rau lub xeev molten ntawm 98% sodium hydroxide ntawm 300 ~ 310 ℃, do thiab tswj 320 ~ 330 ℃, yog li ntawd sodium 2-naphthalene sulfonate puag fused rau 2-naphthol sodium, thiab tom qab ntawd siv dej kub los dilute lub hauv paus yaj, thiab tom qab ntawd dhau mus rau saum toj no Neutralize cov sulfur dioxide tsim los ntawm cov tshuaj tiv thaiv, acidification tshuaj tiv thaiv ntawm 70 ~ 80 ℃ kom txog thaum phenolphthalein tsis muaj xim. Cov khoom acidification yuav yog static layering, txheej sab saud ntawm cov kua cua sov rau boiling, static, faib ua aqueous txheej, cov khoom nyoos ntawm 2-naphthol thawj zaug cua sov dehydration, thiab tom qab ntawd decompression distillation, tuaj yeem yog cov khoom ntshiab.

3. Txoj kev rho tawm thiab crystallization kom tshem tawm 1-naphthol hauv 2-naphthol. Sib tov 2-naphthol thiab dej hauv ib qho kev faib ua feem thiab cua sov rau 95 ℃, thaum 2-naphthol yaj, do cov sib tov kom zoo thiab txo qhov kub kom txog 85 ℃ lossis li ntawd, txias cov khoom crystallized slurry rau chav tsev kub thiab lim. Cov ntsiab lus ntawm 1-naphthol tuaj yeem taug qab los ntawm kev tshuaj xyuas kev huv. 4.

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

Txoj kev khaws cia

kho kom raug

1. Muab cov hnab yas, cov hnab looj tes lossis cov hnab ntaub qhwv rau hauv, qhov hnyav tag nrho yog 50kg lossis 60kg ib lub hnab.

2. Kev khaws cia thiab kev thauj mus los yuav tsum tiv taus hluav taws, tiv taus dej noo, tiv thaiv kev raug mob. Khaws cia rau hauv qhov chaw qhuav, muaj cua nkag. Khaws cia thiab thauj mus los raws li cov cai ntawm cov khoom siv hluav taws xob thiab tshuaj lom.

Siv

kho kom raug

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

2. Siv ua ib qho reagent rau kev txiav txim siab ntawm sulfonamide thiab aromatic amines los ntawm cov txheej txheem nyias chromatography. Nws kuj tseem siv rau kev tsim cov organic.

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

4. Feem ntau siv rau hauv kev tsim 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, kua qaub complex liab dawb B, kua qaub complex liab xim av BRRW, kua qaub 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. Neutral Purple BL, Neutral Black BGL, Direct Copper Salt Blue 2R, Direct Sunlight Resistant Blue B2PL, Direct Blue RG, Direct Blue RW thiab lwm yam xim [2].

COV NTAUB NTAWV TXOG DAIM NTAWV COG LUS