Valeric anhydride (CAS # 2082-59-9)
| Hazard Cov Cim | C - Corrosive |
| Risk Codes | 34 – Ua rau kub hnyiab |
| 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. S36/37/39 - Hnav cov khaub ncaws tiv thaiv tsim nyog, hnab looj tes thiab tiv thaiv qhov muag / ntsej muag. 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.) |
| UN IDs | UN 3265 8/PG 3 |
| WGK Germany | 3 |
| HS Code | 29159000 ib |
| Hazard Class | 8 |
| Packing Group | III |
Taw qhia
Valeric anhydride yog ib qho organic compound. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm valeric anhydride:
Zoo:
- Valeric anhydride yog cov kua tsis muaj xim, pob tshab nrog cov ntxhiab tsw.
- Nws reacts nrog dej los tsim ib tug sib tov ntawm valeric acid thiab valeric anhydride.
Siv:
- Valeric anhydride feem ntau yog siv los ua reagent thiab nruab nrab hauv cov organic synthesis.
- Nws tuaj yeem siv los npaj cov tebchaw nrog ntau pawg ua haujlwm, xws li ethyl acetate, anhydrides, thiab amides.
- Valeric anhydride tuaj yeem siv rau hauv kev sib txuas ntawm cov tshuaj tua kab thiab tshuaj tsw qab.
Txoj kev:
- Valeric anhydride feem ntau yog tsim los ntawm cov tshuaj tiv thaiv ntawm valeric acid nrog anhydride (xws li acetic anhydride).
- Cov kev mob tshwm sim tuaj yeem nqa tawm ntawm chav tsev kub lossis cua sov hauv qab kev tiv thaiv ntawm inert gas.
Cov ntaub ntawv kev nyab xeeb:
- Valeric anhydride yog irritating thiab corrosive, tsis txhob sib cuag nrog daim tawv nqaij thiab ob lub qhov muag, thiab xyuas kom meej tias yuav tsum tau ua hauj lwm nyob rau hauv ib tug zoo-ventilated qhov chaw.
- Thaum tuav thiab khaws cia, zam kev sib cuag nrog cov oxidants lossis cov kua qaub thiab cov hauv paus kom tsis txhob muaj kev phom sij txaus ntshai.
- Ua raws li cov txheej txheem tswj kev nyab xeeb rau cov tshuaj thiab muab koj tus kheej nrog cov khoom tiv thaiv tsim nyog xws li hnab looj tes, tsom iav, thiab lwm yam.
