4-Chloro-3-fluorobenzoic acid (CAS # 403-17-8)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S22 - Tsis txhob nqus plua plav. S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. S37 - Hnav cov hnab looj tes tsim nyog. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. |
| HS Code | 291639 0 |
| Hazard Class | IRRITANT |
Taw qhia
4-Chloro-3-fluorobenzoic acid.
Khoom: Nws tuaj yeem yaj hauv ntau cov kuab tshuaj organic xws li ethanol, ether thiab chloroform ntawm chav tsev kub.
Kev Siv: Nws kuj tuaj yeem siv rau hauv kev npaj cov dyes thiab coatings.
Txoj kev:
Txoj kev npaj ntawm 4-chloro-3-fluorobenzoic acid feem ntau yog tau los ntawm reacting benzoic acid nrog carbon tetrachloride thiab hydrogen fluoride. Ua ntej, benzoic acid yog reacted nrog carbon tetrachloride nyob rau hauv lub xub ntiag ntawm txhuas tetrachloride los ua benzoyl chloride. Benzoyl chloride yog ces reacted nrog hydrogen fluoride nyob rau hauv cov organic hnyav los tsim 4-chloro-3-fluorobenzoic acid.
Cov ntaub ntawv kev nyab xeeb:
4-Chloro-3-fluorobenzoic acid yog qhov ruaj khov ntawm chav tsev kub, tab sis kev sib cuag nrog cov oxidants muaj zog thiab kub siab yuav tsum zam. Cov cuab yeej tiv thaiv tsim nyog, xws li hnab looj tes thiab tsom iav, yuav tsum hnav thaum tuav cov khoom sib txuas kom tiv thaiv kev sib cuag ntawm daim tawv nqaij thiab qhov muag. Cov cua zoo yuav tsum tau muab thaum lub sijhawm ua haujlwm.
