Paraldehyde CAS Nr 123-63-7
| Hazard Cov Cim | F - Flammable |
| Risk Codes | R11 - Cov nplaim hluav taws kub heev R10 - Flammable |
| Kev nyab xeeb piav qhia | S9 - Khaws lub thawv rau hauv qhov chaw muaj cua zoo. S16 - Khaws kom deb ntawm qhov chaw hluav taws xob. S29 - Tsis txhob muab tso rau hauv qhov dej. S33 - Siv cov kev tiv thaiv kev tiv thaiv zoo li qub. |
| UN IDs | UN 1993 3/PG 2 |
| WGK Germany | 1 |
| RTECS | YK0525000 |
| HS Code | 29125000 ib |
| Hazard Class | 3.2 |
| Packing Group | III |
| Toxicity | LD50 qhov ncauj hauv nas: 1.65 g / kg (Figot) |
Taw qhia
Triacetaldehyde. Hauv qab no yog cov lus qhia luv luv txog nws qhov xwm txheej, kev siv, kev tsim khoom thiab cov ntaub ntawv kev nyab xeeb.
Zoo:
Acetaldehyde yog xim tsis muaj xim rau daj ntseg daj crystalline hmoov nrog qab zib saj.
Nws qhov txheeb ze molecular hnyav yog li 219.27 g / mol.
Nyob rau hauv chav tsev kub, triacetaldehyde yog soluble nyob rau hauv dej, methanol, ethanol thiab ether solvents. Nws yuav decompose ntawm qhov kub thiab txias.
Siv:
Acetaldehyde tseem tuaj yeem siv rau hauv kev npaj cov khoom siv hluav taws xob, cov khoom hloov pauv, cov nplaim hluav taws xob thiab lwm yam kev lag luam.
Txoj kev:
Acetaldehyde tuaj yeem tau los ntawm acid-catalyzed polymerization ntawm acetaldehyde. Txoj kev npaj tshwj xeeb yog qhov nyuaj, xav tau qee yam kev sim thiab cov catalysts, thiab feem ntau xav tau cov tshuaj tiv thaiv ntawm 100-110 ° C.
Cov ntaub ntawv kev nyab xeeb:
Acetaldehyde tej zaum yuav muaj kuab lom thiab khaus rau tib neeg lub cev ntawm ib qho concentration, thiab yuav tsum tau saib xyuas kom tsis txhob muaj kev sib cuag ncaj qha rau ntawm daim tawv nqaij, qhov muag thiab ua pa thaum siv nws.
Thaum ntsib qhov hluav taws kub, polyacetaldehyde yog flammable thiab yuav tsum tau ceev kom deb ntawm cov nplaim taws thiab kub kub.
Thaum siv los yog khaws cia triacetaldehyde, ib puag ncig zoo-ventilated yuav tsum tau khaws cia thiab kom deb ntawm oxidizing agents.
Thaum tuav meretaldehyde, hnav cov khoom tiv thaiv tsim nyog xws li hnab looj tes, tsom iav tiv thaiv, thiab lub ntsej muag tiv thaiv.
