2-Chloro-5-fluorobenzaldehyde (CAS # 84194-30-9)
Risk thiab Safety
| Risk Codes | R22 - Ua phem yog tias nqos R37/38 - Kab mob ua pa thiab tawv nqaij. R41 - Riam phom loj rau qhov muag |
| 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. S39 - Hnav qhov muag / ntsej muag tiv thaiv. |
| Hazard Class | IRRITANT |
Taw qhia
-Zoo: Dawb siv lead ua los yog lub teeb daj khoom.
- Melting point: txog 40-42 ℃.
-Boiling point: txog 163-165 ℃.
- Qhov ceev: txog 1.435g / cm³.
-Solubility: Nws yog soluble hauv qee cov organic solvents, xws li ethanol, chloroform thiab dichloromethane.
Siv:
Nws yog tsuas yog siv rau cov tshuaj tiv thaiv hauv cov organic synthesis. Nws tuaj yeem siv los ua ib qho nruab nrab ntawm fluorescent dyes, raws li cov khoom siv raw hauv chaw ua tshuaj, thiab hauv kev ua liaj ua teb rau kev npaj tshuaj tua kab.
Txoj Kev Npaj:
tuaj yeem npaj los ntawm chlorination, fluorinated benzaldehyde txoj kev. Txoj kev npaj tshwj xeeb yog raws li hauv qab no:
1. Nyob rau hauv cov xwm txheej tsim nyog, hydrofluoric acid yog ntxiv rau benzaldehyde kom nws nkag mus rau cov tshuaj fluorination.
2. Tom qab cov tshuaj tiv thaiv, hydrogen chloride ntxiv rau chlorinate cov khoom fluorinated.
3. ua raws cov kauj ruam ua kom huv huv kom tau cov phosphonium ntshiab.
Cov ntaub ntawv kev nyab xeeb:
-yog tshuaj phem, yuav ua rau khaus thiab puas rau tib neeg lub cev. Hnav hnab looj tes, tsom iav thiab cov khoom tiv thaiv ua pa thaum tsim nyog.
-Tsis txhob nqus nws cov plua plav lossis roj, thiab tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag.
-Thaum khaws cia thiab siv, yuav tsum tau ua raws li cov txheej txheem kev nyab xeeb tshuaj, thiab yuav tsum tau tswj xyuas qhov cua kom zoo.
-Rau qhov raug xwm txheej los yog kev noj, nrhiav kev kho mob tam sim ntawd thiab muab cov ntaub ntawv kev nyab xeeb tsim nyog.
