Dibromomethane (CAS # 74-95-3)
| Risk Codes | R20 - Ua phem los ntawm kev nqus pa R52/53 - Ua phem rau cov kab mob hauv dej, tuaj yeem ua rau muaj kev cuam tshuam ntev rau hauv dej hiav txwv. R39/23/24/25 - R23/24/25 – Toxic los ntawm inhalation, nyob rau hauv kev sib cuag nrog daim tawv nqaij thiab yog hais tias nqos. R11 - Cov nplaim hluav taws kub heev |
| Kev nyab xeeb piav qhia | S24 - Tsis txhob sib cuag nrog daim tawv nqaij. S61 - Tsis txhob tso tawm rau ib puag ncig. Xa mus rau cov lus qhia tshwj xeeb / cov ntaub ntawv kev nyab xeeb. S45 - Thaum muaj xwm txheej lossis yog tias koj tsis xis nyob, nrhiav kev kho mob tam sim ntawd (qhia daim ntawv lo thaum twg ua tau.) S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S7 – Khaws lub thawv kaw kom nruj. |
| UN IDs | UN 2664 6.1/PG 3 |
| WGK Germany | 2 |
| RTECS | PIB 7350000 |
| TSCA | Yog lawm |
| HS Code | 29033915 ib |
| Hazard Class | 6.1 |
| Packing Group | III |
| Toxicity | LD50 qhov ncauj hauv luav: 108 mg/kg LD50 dermal Luav > 4000 mg/kg |
Taw qhia
Dibromomethane. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm dibromomethane:
Zoo:
Nws muaj pungent tsw nyob rau hauv chav tsev kub thiab yog insoluble nyob rau hauv dej, tab sis soluble nyob rau hauv ntau yam organic solvents.
Dibromomethyl yog ib qho tshuaj ruaj khov uas tsis decompose los yog raug tshuaj lom neeg yooj yim.
Siv:
Dibromomethane feem ntau yog siv los ua cov kuab tshuaj rau cov organic synthesis, dissolving los yog extracting lipids, resins thiab lwm yam organic tshuaj.
Dibromomethane kuj tseem siv los ua cov khoom siv raw rau kev npaj ntawm lwm cov organic tebchaw, thiab muaj kev siv hauv qee cov txheej txheem kev lag luam.
Txoj kev:
Dibromomethane feem ntau yog npaj los ntawm reacting methane nrog bromine.
Raws li cov tshuaj tiv thaiv, bromine muaj peev xwm hloov tau ib lossis ntau dua hydrogen atoms hauv methane los ua dibromomethane.
Cov ntaub ntawv kev nyab xeeb:
Dibromomethane yog tshuaj lom thiab tuaj yeem nqus tau los ntawm kev nqus pa, sib cuag ntawm daim tawv nqaij, lossis noj. Kev kis mus ntev yuav muaj kev cuam tshuam rau kev noj qab haus huv.
Cov cuab yeej tiv thaiv tus kheej tsim nyog xws li hnab looj tes, tsom iav, thiab daim npog ntsej muag yuav tsum hnav thaum siv.
Kev saib xyuas yuav tsum tau ua kom tsis txhob muaj kev sib cuag nrog cov khoom siv hluav taws xob thaum tuav thiab khaws cov dibromomethane, vim nws yog nplaim taws.
Dibromomethane yuav tsum tau muab cia kom deb ntawm qhov chaw kub thiab kub hauv qhov chaw txias, qhov cua zoo.
Thaum siv, khaws cia lossis tuav cov dibromomethane, cov txheej txheem kev nyab xeeb yuav tsum tau ua raws li nruj me ntsis kom ntseeg tau tias tus kheej muaj kev nyab xeeb. Thaum muaj xwm txheej, yuav tsum tau ua raws li kev ntsuas kub ceev.
