3-Acetyl pyridine (CAS # 350-03-8)
| Risk Codes | R25 - Toxic yog nqos R36/38 - Kab mob rau qhov muag thiab tawv nqaij. R36/37/38 - Kab mob rau qhov muag, ua pa thiab tawv nqaij. R20/21/22 - Ua phem los ntawm kev nqus pa, tiv thaiv daim tawv nqaij thiab yog tias nqos. |
| Kev nyab xeeb piav qhia | 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.) S37/39 - Hnav cov hnab looj tes tsim nyog thiab tiv thaiv qhov muag / ntsej muag S28A - 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. |
| UN IDs | UN 2810 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | SIB 5425000 |
| FLUKA BRAND F CODE | 8-10 |
| TSCA | Yog lawm |
| HS Code | 2933399 ib |
| Kev Ceeb Toom | Irritant |
| Hazard Class | 6.1 |
| Packing Group | II |
| Toxicity | LD50 orl-rat: 46 mg/kg JACTDZ 1,681,92 |
Taw qhia
3-Acetylpyridine yog ib qho organic compound. Cov hauv qab no yog kev qhia txog qee yam ntawm cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm 3-acetylpyridine:
Zoo:
Cov tsos mob: 3-acetylpyridine tsis muaj xim rau lub teeb daj muaju lossis cov khoom khib nyiab.
Solubility: 3-acetylpyridine yog soluble hauv cov kuab tshuaj organic xws li cawv, ethers thiab ketones, thiab me ntsis soluble hauv dej.
Chemical Properties: 3-Acetylpyridine yog ib qho tsis muaj zog acidic compound uas yog acidic hauv dej.
Siv:
Raws li cov organic synthesis tshuaj: 3-acetylpyridine feem ntau yog siv rau hauv cov organic synthesis tshuaj raws li hnyav, acylation reagent, thiab catalyst.
Siv nyob rau hauv dye synthesis: 3-acetylpyridine yuav siv tau nyob rau hauv lub synthesis ntawm dyes thiab pigments.
Txoj kev:
Muaj ntau ntau txoj hauv kev los npaj 3-acetylpyridine, thiab ib qho yog tau los ntawm esterification cov tshuaj tiv thaiv ntawm stearic anhydride thiab pyridine. Feem ntau, stearic anhydride thiab pyridine reacted nyob rau hauv ib tug hnyav ntawm ib tug molar piv ntawm 1: 1, thiab ib tug tshaj acid catalyst yog ntxiv thaum lub sij hawm cov tshuaj tiv thaiv, thiab ib tug thermodynamically tswj esterification cov tshuaj tiv thaiv yog nqa tawm. Cov khoom 3-acetylpyridine tau txais los ntawm crystallization, pom, thiab ziab.
Cov ntaub ntawv kev nyab xeeb:
3-Acetylpyridine yuav tsum tau muab khaws cia thiab ua haujlwm nyob rau hauv ib txoj kev uas tsis txhob sib cuag nrog oxidants kom tsis txhob muaj hluav taws kub los yog tawg.
Ua raws li kev soj ntsuam kev nyab xeeb thiab hnav cov cuab yeej tiv thaiv tsim nyog xws li hnab looj tes, tsom iav, thiab hnav khaub ncaws thaum siv.
Tsis txhob nqus pa, noj, lossis tiv nrog daim tawv nqaij thiab qhov muag, thiab sim ua haujlwm hauv qhov chaw muaj cua zoo.
Kev saib xyuas yuav tsum tau ua kom tsis txhob muaj plua plav thiab cov khoom siv thaum tuav 3-acetylpyridine kom txo qis kev pheej hmoo ntawm kev nqus pa.
