2 5-Difluoro benzaldehyde (CAS # 2646-90-4)
| 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. S36 - Hnav khaub ncaws tiv thaiv zoo. S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. |
| UN IDs | UN 1989 3/PG 3 |
| WGK Germany | 3 |
| HS Code | 29130 000 Nws |
| Kev Ceeb Toom | Irritant |
| Hazard Class | 3.2 |
| Packing Group | III |
Taw qhia
2,5-Difluorobenzaldehyde. Cov hauv qab no yog kev qhia txog nws qhov xwm txheej, kev siv, kev tsim khoom thiab cov ntaub ntawv kev nyab xeeb:
Zoo:
2,5-Difluorobenzaldehyde yog cov xim tsis muaj xim rau lub teeb daj nrog lub cim kub hnyiab, tsw ntxhiab tsw ntawm chav tsev kub. Nws yog insoluble hauv dej tab sis tuaj yeem soluble hauv cov kuab tshuaj organic xws li ethanol, toluene, thiab lwm yam.
Siv:
2,5-Difluorobenzaldehyde muaj ntau yam kev siv hauv cov organic synthesis. Nws tuaj yeem siv los ua tus thawj coj rau kev sib txuas ntawm cov tshuaj tsw qab, paraphthalenedione derivatives, thiab bioactive molecules. Nws tseem tuaj yeem siv rau hauv kev sib txuas ntawm organometallic complexes, txheej txheej thiab dyes.
Txoj kev:
2,5-difluorobenzaldehyde tuaj yeem npaj tau los ntawm cov tshuaj tiv thaiv ntawm benzaldehyde thiab hydrogen fluoride. Cov tshuaj tiv thaiv no feem ntau yog ua los ntawm cov kua qaub thiab tuaj yeem ua tiav los ntawm kev siv hydrofluoric acid ua qhov chaw ntawm hydrogen fluoride.
Cov ntaub ntawv kev nyab xeeb:
Yuav tsum tau ceev faj thaum tuav 2,5-difluorobenzaldehyde. Nws muaj irritants rau ntawm daim tawv nqaij, qhov muag thiab ua pa ib ntsuj av. Cov tshuaj tiv thaiv tsom iav, hnab looj tes thiab khaub ncaws tiv thaiv yuav tsum hnav thiab tiv thaiv kev sib cuag ncaj qha. Yog tias nws nkag mus rau hauv koj lub qhov muag lossis tawv nqaij, yaug tam sim nrog dej ntau thiab nrhiav kev kho mob sai li sai tau. Thaum lub sijhawm ua haujlwm, nws yuav tsum tau ceev kom deb ntawm qhov hluav taws kub thiab tsis txhob muaj pa taws thiab vapors kom tsis txhob muaj hluav taws kub thiab tawg.
Qhov no yog cov lus qhia luv luv rau cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 2,5-difluorobenzaldehyde. Yog tias xav tau, xyuas kom meej tias koj nkag siab thiab ua raws li cov cai tswj kev nyab xeeb thiab cov lus qhia tsim nyog ua ntej tuav lossis siv.
