(2E)-2-Butene-1 4-diol (CAS # 821-11-4)
| Hazard Cov Cim | Xn – Ua phem |
| Risk Codes | R22 - Ua phem yog tias nqos R36/37/38 - Kab mob rau 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. S24/25 - Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag. |
| WGK Germany | 1 |
| RTECS | EM4970 000 |
| FLUKA BRAND F CODE | 23 |
| HS Code | 29052900 ib |
Taw qhia
(2E)-2-Butene-1,4-diol, tseem hu ua (2E)-2-Butene-1,4-diol, yog cov organic compound. Cov hauv qab no yog cov lus piav qhia ntawm nws qhov xwm txheej, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb:
Xwm:
(2E)-2-Butene-1,4-diol yog cov kua tsis muaj xim lossis daj daj nrog cov ntxhiab tsw tshwj xeeb. Nws cov qauv tshuaj yog C4H8O2 thiab nws qhov hnyav molecular yog 88.11g / mol. Nws muaj qhov ntom ntawm 1.057g / cm³, qhov kub ntawm 225-230 degrees Celsius, thiab yog soluble hauv cov organic solvents xws li dej, ethanol thiab ether.
Siv:
(2E)-2-Butene-1,4-diol muaj ntau yam siv hauv kev lag luam tshuaj. Nws tuaj yeem siv los ua ib qho nruab nrab hauv cov organic synthesis, rau kev npaj cov khoom siv hluavtaws, cov txheej txheem siab heev, dyes thiab tshuaj intermediates thiab lwm cov tshuaj. Tsis tas li ntawd, nws tseem tuaj yeem siv los ua cov kuab tshuaj thiab surfactant hauv kev lag luam.
Txoj Kev Npaj:
Kev npaj ntawm (2E)-2-Butene-1,4-diol tuaj yeem ua tiav los ntawm ntau txoj hauv kev. Ib txoj hauv kev yog los ntawm kev txo cov Butenedioic acid. Qhov kev txo qis no tuaj yeem siv cov tshuaj txo qis xws li hydrogen thiab catalyst, lossis txo cov reactant xws li sodium hydride lossis sulfoxide.
Cov ntaub ntawv kev nyab xeeb:
(2E)-2-Butene-1,4-diol yog ib qho kev nyab xeeb zoo nyob rau hauv kev siv dav dav. Txawm li cas los xij, raws li tshuaj lom neeg, nws tseem tuaj yeem ua rau muaj kev phom sij rau tib neeg lub cev. Kev sib cuag nrog daim tawv nqaij, qhov muag lossis nqus pa ntawm vapors tuaj yeem ua rau khaus thiab mob qhov muag. Yog li ntawd, thaum tuav thiab siv (2E)-2-Butene-1,4-diol, yuav tsum tau ua kom muaj kev nyab xeeb tsim nyog, xws li hnav cov hnab looj tes tiv thaiv thiab cov khoom siv tiv thaiv qhov muag, thiab ua kom muaj kev ua haujlwm zoo. Nyob rau tib lub sijhawm, nws yuav tsum tau ceev kom deb ntawm hluav taws thiab tsis txhob sib cuag nrog cov oxidants muaj zog. Nrhiav kev kho mob tam sim yog tias koj kov lossis noj.
