2 4-Difluorobiphenyl (CAS # 37847-52-2)
| Risk Codes | R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R50/53 - Muaj tshuaj lom heev rau cov kab mob hauv dej, tuaj yeem ua rau muaj kev cuam tshuam ntev hauv cov dej hauv dej. R41 - Riam phom loj rau qhov muag R37/38 - Kab mob ua pa thiab tawv nqaij. R22 - Ua phem yog tias nqos |
| Kev nyab xeeb piav qhia | S20/21 - S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. S61 - Tsis txhob tso tawm rau ib puag ncig. Xa mus rau cov lus qhia tshwj xeeb / cov ntaub ntawv kev nyab xeeb. S60 - Cov khoom no thiab nws lub thawv yuav tsum tau muab pov tseg raws li cov khoom pov tseg. S39 - Hnav qhov muag / ntsej muag tiv thaiv. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. |
| UN IDs | UN 3077 9 / PGIII |
| WGK Germany | 3 |
| Kev Ceeb Toom | Irritant |
| Hazard Class | 9 |
| Packing Group | II |
Taw qhia
2,4-Difluorobiphenyl hmoov. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 2,4-difluorobiphenyl:
Zoo:
Cov tsos mob: 2,4-difluorobiphenyl yog cov xim tsis muaj xim lossis hmoov dawb.
Nws yog insoluble hauv dej ntawm chav tsev kub, tab sis tuaj yeem soluble hauv cov kuab tshuaj organic xws li ethanol, ether, thiab lwm yam.
2,4-Difluorobiphenyl yog ib qho chaw ruaj khov uas tsis cuam tshuam rau cua sov thiab lub teeb.
Siv:
2,4-Difluorobiphenyl feem ntau yog siv los ua ib qho tseem ceeb nruab nrab ntawm cov organic synthesis.
Hauv qee cov khoom siv optoelectronic organic, 2,4-difluorobiphenyl kuj tseem siv los ua cov khoom siv xws li organic teeb-emitting diodes (OLEDs).
Txoj kev:
2,4-Difluorobiphenyl tuaj yeem npaj tau los ntawm cov tshuaj tiv thaiv ntawm phenylacetylene thiab hydrogen fluoride. Phenylacetylene yog thawj zaug nrog hydrogen fluoride los ua 2,4-difluorobiphenyl, thiab tom qab ntawd cov khoom lag luam tau txais los ntawm cov kauj ruam ua kom huv.
Nyob rau hauv cov txheej txheem kev npaj, yuav tsum tau them nyiaj mloog mus rau kev tswj ntawm kev khiav hauj lwm kub, ntsuas ntawm reactants thiab cov tshuaj tiv thaiv tej yam kev mob los xyuas kom meej kev ruaj ntseg thiab cov khoom zoo.
Cov ntaub ntawv kev nyab xeeb:
2,4-Difluorobiphenyl yog cov tshuaj toxicity tsawg, tab sis nws tseem yuav tsum tau ua kom zoo. Cov khoom siv tiv thaiv tus kheej xws li hnab looj tes tiv thaiv, tsom iav, thiab hnav khaub ncaws yuav tsum hnav thaum siv los yog tuaj ntsib nrog 2,4-difluorobiphenyl.
Tsis txhob sib cuag nrog daim tawv nqaij, qhov muag thiab ua pa ntawm 2,4-difluorobiphenyl, thiab yaug nrog dej kom ntau yog tias muaj kev sib cuag tsis raug. Yog tias koj muaj kev tsis xis nyob tas li, koj yuav tsum nrhiav kev kho mob sai.
Thaum lub sij hawm cia thiab kev thauj mus los, 2,4-difluorobiphenyl yuav tsum tau muab kaw kom tsis txhob muaj kev sib cuag nrog cov khoom xws li oxidants thiab muaj zog acids / bases.
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