Khoom
1,2-yam dab tsi; CAS Tsis muaj: 629-15-2
Cov ntaub ntawv qhia yooj yim li cas
| Kub taw tes | 174-178 ° C (Lit.) |
| ceev | 1.226 g / ml ntawm 20 ° C (lit.) |
| vapor siab | 1.72HPA ntawm 25 ℃ |
| Refronction Index | n20 / d 1.415 |
| Lub cim | -0.69 |
| CAS database siv | 629-15-2 (CAS database siv) |
| Nist chemistry siv | 1,2-ethanediol, ua haujlwm (629-15-2) |
| EPA Tshuaj Txhuam Chaw Sau Npe | 1,2-ethanediol, 1,2-didesormate (629-15-2) |
Khoom Piav Qhia
1,2-yam dab tsi, tseem hu ua acetoacetalhyde lossis acetate acetaldehyde, yog cov tshuaj lom neeg nrog cov mis molecular c4h6o3. Nws yog ib qho kev sib xyaw ua ke ua ke muaj ob daim ntawv (aldehyde) pawg sib khi ua cov pa otom. 1,2-didormlyroxyethane tuaj yeem ua tau zoo los ntawm reacting formaldehyde (ch2o) nrog acetaldehyde (c2h4o) nyob rau hauv muaj ntawm cov acid catalyst. Nws yog cov kua tsis muaj kob uas muaj ntxhiab tsw. 1,2-yam dab tsi tuaj yeem siv los ua nruab nrab hauv cov khoom nruab nrab hauv cov organic thiab raws li cov kuab tshuaj lossis reagent hauv qee yam kev tawm tsam. Nws kuj tseem siv tau ua tus neeg sawv cev hauv cov khoom noj khoom haus. Txawm li cas los xij, nws yog qhov tseem ceeb heev los lis cov kab sib txuas no nrog nws yog nplaim taws thiab tuaj yeem ua rau lub qhov muag, tawv nqaij thiab ua pa yog tias tsis daws tau zoo.
Cov Ntaub Ntawv Kev Nyab Xeeb
| Cov kev phom sij | Xn |
| Cov lus txaus ntshai | -44 |
| Kev Nyab Xeeb Cov Nqe Lus | 26-36 |
| Wgk lub teb chaws Yelemees | 3 |
| Rtecs | KW5250000 |
Kev siv demormlyroxyethane siv thiab synthesis
| Tshuaj Tshuaj Muaj Zog | Dej-kua dawb. Hydrolyzes maj mam, liberating formic acid. Soluble hauv dej, cawv thiab ether. Combicible. |
| Kev siv | Embalming kua. |
| Kev piav qhia dav dav | Kua dej-dawb. Ntau ntov dua dej. Flash point 200 ° F. Tej zaum yuav lom los ntawm kev noj khoom haus. Siv rau hauv cov kua dej. |
| Huab cua & Dej Rwg | Soluble hauv dej. |
| Reactivity Profile | 1,2-didormlyroryane reacts exototmically nrog acids. Nrog muaj zog oxidizing acids; Cov cua sov tej zaum yuav taws cov khoom lag luam. Kuj reacts exothermically nrog cov kev daws teeb meem yooj yim. Tsim cov tshuaj hydrogen nrog nrog cov neeg sawv cev muaj zog (alkali me me, hydrides). |
| Qho teeb meem | Lom los ntawm kev noj khoom haus. |
| Kev Noj Qab Haus Huv | Inhalation lossis kev sib cuag nrog cov ntaub ntawv tuaj yeem ua rau muaj kev cuam tshuam lossis hlawv cov tawv nqaij thiab qhov muag. Cov hluav taws tuaj yeem tsim kev puas tsuaj, xeb thiab / lossis cov roj lom. Vapors yuav ua rau lub kiv taub hau thiab kev poob. Kev tso dej tawm los ntawm kev tswj hluav taws lossis cov dej tsis huv yuav ua rau muaj kuab paug. |
| Cov nplaim hluav taws thiab kev tawg | Nonframmamable |
| Kev Nyab Xeeb Profile | Tshuaj lom los ntawm kev noj khoom haus. Ib lub qhov muag tsis zoo. Nplaim taws thaum raug cua sov lossis nplaim taws; tuaj yeem hnov mob nrog oxidizing cov ntaub ntawv. Txhawm rau tawm tsam hluav taws, siv CO2, qhuav tshuaj. Thaum rhuab rau decomposition nws emits cov pa taws pa hluav taws xob thiab khaus fumes. |
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