2,3-Dimethyl-2-butene (CAS # 563-79-1)
| Risk Codes | R11 - Cov nplaim hluav taws kub heev R65 - Ua phem: Tej zaum yuav ua rau lub ntsws puas yog tias nqos R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R22 - Ua phem yog tias nqos R19 - Tej zaum yuav tsim cov peroxides tawg R40 - Cov pov thawj txwv ntawm cov nyhuv carcinogenic R36/37 - Kab mob rau qhov muag thiab ua pa. |
| Kev nyab xeeb piav qhia | S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S33 - Siv cov kev tiv thaiv kev tiv thaiv zoo li qub. S62 - Yog tias nqos tau, tsis txhob ntuav ntuav; nrhiav kev kho mob tam sim ntawd thiab qhia lub thawv los yog daim ntawv lo. S9 - Khaws lub thawv rau hauv qhov chaw muaj cua zoo. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. S26 - Thaum sib cuag nrog lub qhov muag, yaug tam sim ntawd nrog dej txaus thiab nrhiav kev kho mob. S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. |
| UN IDs | UN 3295 3/PG 2 |
| WGK Germany | 3 |
| FLUKA BRAND F CODE | 10-23 |
| TSCA | Yog lawm |
| HS Code | 29012980 ib |
| Kev Ceeb Toom | Flammable / Corrosive / Harmful heev |
| Hazard Class | 3 |
| Packing Group | II |
Taw qhia
2,3-dimethyl-2-butene (DMB) yog cov organic compound. 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:
Cov tsos mob: DMB yog cov kua tsis muaj xim.
Solubility: Nws yog soluble hauv ntau cov kuab tshuaj organic xws li ethanol, ethers, thiab hydrocarbons.
Qhov ceev: Nws qhov ceev yog li 0.68 g / cm³.
Toxicity: DMB tsis tshua muaj tshuaj lom, tab sis kev raug ntau dhau tuaj yeem ua rau qhov muag khaus thiab khaus tawv nqaij.
Siv:
Chemical synthesis: DMB feem ntau yog siv rau hauv cov organic synthesis ua ib qho hnyav, nruab nrab, lossis catalyst.
Kev lag luam roj av: DMB kuj tseem siv los ua cov tshuaj siv tseem ceeb hauv jute petroleum refining thiab petrochemical txheej txheem.
Txoj kev:
DMB yog conventionally npaj los ntawm alkylation ntawm methylbenzene thiab propylene. Cov kauj ruam tshwj xeeb suav nrog reacting methylbenzene thiab propylene ntawm qhov tsim nyog kub thiab siab nyob rau hauv muaj cov catalyst los tsim DMB.
Cov ntaub ntawv kev nyab xeeb:
Raws li cov organic hnyav, DMB yog volatile. Thaum siv, nws yog ib qho tsim nyog yuav tsum ua kom muaj cua zoo thiab tsis txhob raug ntau dhau.
Tej zaum yuav ua rau khaus thaum kov ntawm daim tawv nqaij thiab qhov muag. Kev sib cuag ntev, nqus tau, lossis nqos yuav tsum zam.
Thaum khaws cia thiab tuav DMB, cov tshuaj tiv thaiv nrog cov oxidants muaj zog thiab muaj zog acids yuav tsum raug zam.
Nyob rau hauv cov ntaub ntawv ntawm kev sib cuag nrog cov khoom no, tam sim ntawd yaug qhov chaw ntawm daim tawv nqaij kab mob los yog ob lub qhov muag nrog dej txaus thiab nrhiav kev kho mob.
