Furfural (CAS # 98-01-1)
| Risk Codes | R21 - Ua phem rau ntawm daim tawv nqaij R23/25 - Toxic los ntawm kev nqus pa thiab yog tias nqos. R36/37 - Kab mob rau qhov muag thiab ua pa. R40 - Cov pov thawj txwv ntawm cov nyhuv carcinogenic 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. S36/37/39 - 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.) S1/2 - Khaws kaw thiab tawm ntawm cov menyuam yaus. S36/37 - Hnav cov khaub ncaws tiv thaiv thiab hnab looj tes tsim nyog. |
| UN IDs | UN 1199 6.1/PG 2 |
| WGK Germany | 2 |
| RTECS | LWB 700000 |
| FLUKA BRAND F CODE | 1-8-10 |
| TSCA | Yog lawm |
| HS Code | 2932 12 00 Nws |
| Kev Ceeb Toom | Irritant |
| Hazard Class | 6.1 |
| Packing Group | II |
| Toxicity | LD50 ntawm qhov ncauj hauv nas: 127 mg / kg (Jenner) |
Taw qhia
Furfural, tseem hu ua 2-hydroxyunsaturated ketone lossis 2-hydroxypentanone. Cov hauv qab no yog kev qhia txog cov khoom, kev siv, kev npaj thiab cov ntaub ntawv kev nyab xeeb ntawm furfural:
Zoo:
- Nws muaj xim tsis muaj xim thiab muaj qhov tsw qab tshwj xeeb.
- Furfural muaj tsawg solubility hauv dej, tab sis nws yog soluble hauv cawv thiab ether solvents.
- Furfural tau yooj yim oxidized thiab yooj yim decomposed los ntawm tshav kub.
Txoj kev:
- Ib txoj hauv kev los npaj furfural yog tau los ntawm oxidation ntawm C6 alkyl ketones (xws li, hexanone).
- Piv txwv li, hexanone tuaj yeem oxidized rau furfural siv oxygen thiab catalysts xws li potassium permanganate lossis hydrogen peroxide.
- Tsis tas li ntawd, acetic acid kuj tuaj yeem cuam tshuam nrog ntau yam C3-C5 cawv (xws li isoamyl cawv, thiab lwm yam) los tsim cov ester sib xws, thiab tom qab ntawd txo kom tau furfural.
Cov ntaub ntawv kev nyab xeeb:
- Furfural muaj toxicity tsawg tab sis tseem yuav tsum tau siv thiab khaws cia nrog kev saib xyuas.
- Tsis txhob sib cuag nrog daim tawv nqaij thiab qhov muag, thiab yaug tam sim nrog dej ntau yog tias nws ua.
- Kev saib xyuas yuav tsum tau ua kom tsis txhob muaj kev sib cuag nrog cov oxidants muaj zog, ignition qhov chaw, thiab lwm yam thaum lub sij hawm cia thiab siv los tiv thaiv hluav taws los yog tawg.
- Cov huab cua zoo yuav tsum tau muab thaum siv kom tsis txhob nqus pa ntawm furfural vapors.
