3 5-Dichloro-4-hydroxybenzoic acid (CAS # 3336-41-2)
| Hazard Cov Cim | Xi-xaj |
| Risk Codes | 36/37/38 – Khaus qhov muag, ua pa thiab tawv nqaij. |
| Kev nyab xeeb piav qhia | S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag |
| WGK Germany | 3 |
| RTECS | DG7502000 |
| HS Code | 29182900 ib |
Taw qhia
3,5-Dichloro-4-hydroxybenzoic acid yog cov organic compound. Cov hauv qab no yog kev qhia txog nws cov khoom, kev siv, kev tsim khoom thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
- Pom: 3,5-Dichloro-4-hydroxybenzoic acid yog xim tsis muaj xim rau dawb crystalline hmoov.
- Solubility: Nws yog soluble nyob rau hauv ib co organic solvents xws li cawv thiab ethers, tab sis nws yog tsawg soluble nyob rau hauv dej.
Siv:
Txoj kev:
- 3,5-Dichloro-4-hydroxybenzoic acid tuaj yeem tau los ntawm chlorination ntawm parahydroxybenzoic acid. Cov txheej txheem tshwj xeeb yog los ua cov tshuaj hydroxybenzoic acid nrog thionyl chloride los hloov cov hydrogen atom ntawm pawg hydroxyl nrog chlorine atoms nyob rau hauv acidic tej yam kev mob los ntawm kev hloov ntawm chloride ions.
Cov ntaub ntawv kev nyab xeeb:
- Kev cuam tshuam rau tib neeg kev noj qab haus huv: 3,5-dichloro-4-hydroxybenzoic acid tsis muaj kev phom sij rau tib neeg kev noj qab haus huv raws li kev siv dav dav.
- Tsis txhob sib cuag: Thaum tuav cov khoom sib xyaw no, tsis txhob sib cuag ncaj qha ntawm daim tawv nqaij thiab ob lub qhov muag thiab xyuas kom meej tias ua haujlwm hauv qhov chaw muaj cua zoo.
- Kev ceev faj khaws cia: Nws yuav tsum tau muab cia rau hauv qhov chaw qhuav, txias, thiab qhov cua, kom deb ntawm hluav taws thiab combustibles.
