Lub npe: 3-Hydroxy-2-naphthoic acid
Alias: CI Developer 20; CI Developer 20 (Obs.); CI Developer 8; 3-Hydroxy-2-naphthalenecarboxylic acid; Bon Acid; beta-oxynaphthoic acid; 2,3-Bon Acid; Refined Bon Acid; 2-Hydroxy- 3-Naphthalene Carboxylic acid; 3-Hydroxy-2-Naphthslene Carboxylic acid; 3-Hydroxy-2-Naphthalene Carboxylic acid; 2-Hydroxy-3-naphthoic acid; 3-hydroxynaphthalene-2-carboxylate
CAS Nr .: 92-70-6
PIB: 202-180-8
Cov mis mos molecular: C11H8O3
Molecular Luj: 187.172
InChI = 1/C11H8O3/c12-10-6-8-4-2-1-3-7(8)5-9(10)11(13)14/h1-6,12H,(H,13) , 14)/p-1
Melting point: 217-223 ° C
Kub taw tes: 367.7 ° C ntawm 760 mmHg
Lub teeb taw tes: 190.4 ° C
Cov dej solubility: PACTICALLY InsolubLE
Vapor siab: 4.68E-06mmHg ntawm 25 ° C

2-Naphthol-3-carboxylic acid yog siv los ua ke naphthol AS thiab ntau lwm yam naphthols, xws li naphthol AS-BO, AS-RL, AS-E, AS-D, AS-VL, AS-BS, AS-OL

Cov ntaub ntawv lub cev
1. Khoom: lub teeb daj muaju.

2. Ceev (g/mL, 25/4 ℃): 1.034

3. Relative vapor density (g/mL, air=1): tsis txiav txim siab

4. Melting point (℃): 222 ~ 223

5. Txheem kub ntawm combustion ntawm crystalline theem (enthalpy) (kJ·mol-1): -4924.1

6. Cov txheej txheem siv lead ua kom sov (enthalpy) (kJ·mol-1): -547.8

7. Refractive index: tsis txiav txim siab

8. Flash point (℃):> 150

9. Kev sib hloov tshwj xeeb (o): tsis txiav txim siab

10. Nthuav ignition point lossis ignition kub (℃): tsis txiav txim

11. Vapor siab (kPa, 25 ℃): tsis txiav txim siab

12. Saturated vapor siab (kPa, 60 ℃): tsis txiav txim siab

13. Thaum tshav kub kub combustion (KJ/mol): tsis txiav txim

14. Qhov kub thiab txias (℃): tsis txiav txim siab

15. Lub siab tseem ceeb (KPa): tsis txiav txim siab

16. Logarithmic tus nqi ntawm roj-dej (octanol / dej) muab faib coefficient: tsis txiav txim

17. Upper tawg txwv (%, V / V): tsis txiav txim siab

18. Tsawg tawg txwv (%, V / V): tsis txiav txim siab

19. Solubility: yooj yim soluble nyob rau hauv ethanol thiab ether, soluble nyob rau hauv benzene, chloroform thiab alkali daws, me ntsis soluble nyob rau hauv dej kub, yuav luag insoluble nyob rau hauv dej txias.

Toxicological cov ntaub ntawv
Mob toxicity:

Qhov ncauj LD50: 783mg / kg (guinea pig)

800 mg/kg (mus)

832 mg/kg (rat)

Cov teebmeem tseem ceeb irritant:

Ntawm daim tawv nqaij: Irritating rau ntawm daim tawv nqaij thiab mucous daim nyias nyias.

Saum lub qhov muag: cov nyhuv ntawm irritation.

Sensitization: Tsis paub qhov cuam tshuam rau kev nkag siab.

Cov ntaub ntawv ecological
Daim ntaub ntawv

Dej nyab xeeb theem 1 (German Regulation) (kev ntsuas tus kheej los ntawm daim ntawv teev npe) Cov khoom no muaj kev phom sij me ntsis rau dej.

Tsis txhob cia cov khoom tsis muaj tshuaj lom lossis cov khoom loj tuaj rau hauv av, cov chav dej lossis cov kav dej phwj tuaj.

Tsis txhob tso cov khoom pov tseg rau hauv ib puag ncig yam tsis muaj kev tso cai los ntawm tsoomfwv.

Xwm thiab stability
Mob toxic, irritating ntawm daim tawv nqaij thiab mucous daim nyias nyias. Rat subcutaneous txhaj tshuaj LD50: 376mg / kg. Cov khoom siv tshuaj tiv thaiv yuav tsum yog airtight, thiab carboxylation reactor yuav tsum ua tau raws li cov qauv siab. Cov neeg ua haujlwm yuav tsum hnav lub npog ntsej muag tiv thaiv thiab lwm yam khoom siv tiv thaiv, thiab ua kom muaj cua zoo hauv chav ua haujlwm.

Txoj kev khaws cia
Cov khoom no yuav tsum tau muab kaw thiab cia kom deb ntawm lub teeb.

Siv
Dye intermediates. Siv los ua ke Naphthol AS thiab lwm yam Naphthol, xws li Naphthol AS-BO, AS-RL, AS-E, AS-D, AS-VL, AS-BS, AS-OL, thiab lwm yam. tsim Lub Teeb Fast Brilliant Liab BBC, Lub Teeb Ceev Liab BBN, Roj Hmab Liab LG, Pigment Brilliant Liab 6B, Lithol Liab BK. Kuj tseem siv los ua tshuaj intermediates.esolve daws teeb meem
Tom qab β-naphthol thiab sodium hydroxide tsim cov ntsev, cua sov thiab decompression yog lub cev qhuav dej, thiab cov tau txais anhydrous β-naphthol ntsev yog carboxylated nrog carbon dioxide los tsim 2,3 acid disodium ntsev, uas yog acidified nrog sulfuric acid kom tau ib tug tiav. khoom.