Furfural (CAS#98-01-1)
| Amakhodi Engozi | R21 – Kuyingozi ukuthintana nesikhumba R23/25 – Kunobuthi ngokuhogela umoya futhi uma ugwinywe. R36/37 – Ukucasula amehlo kanye nesistimu yokuphefumula. R40 – Ubufakazi obuncane bomphumela we-carcinogenic R36/37/38 – Ukucasula amehlo, uhlelo lokuphefumula kanye nesikhumba. |
| Incazelo Yokuphepha | S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha. S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu kanye nokuvikela iso/ubuso. S45 – Uma kwenzeka ingozi noma uzizwa ungaphilile, funa iseluleko sezokwelapha ngokushesha (bonisa ilebula noma nini lapho kunokwenzeka.) I-S1/2 – Gcina uvaliwe futhi ungekho lapho izingane zingakwazi ukufinyelela khona. I-S36/37 – Gqoka izingubo zokuzivikela ezifanele namagilavu. |
| Ama-ID e-UN | UN 1199 6.1/PG 2 |
| I-WGK Germany | 2 |
| I-RTECS | LT7000000 |
| AMAKHODI E-FLUKA BRAND F | 1-8-10 |
| I-TSCA | Yebo |
| Ikhodi ye-HS | 2932 12 00 |
| Inothi Lengozi | Iyacasula |
| I-Hazard Class | 6.1 |
| Iqembu Lokupakisha | II |
| Ubuthi | I-LD50 ngomlomo kumagundane: 127 mg/kg (Jenner) |
Isingeniso
I-Furfural, eyaziwa nangokuthi i-2-hydroxyunsaturated ketone noma i-2-hydroxypentanone. Okulandelayo yisingeniso sezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwe-furfural:
Ikhwalithi:
- Ibukeka ingenambala futhi inokunambitheka okumnandi okukhethekile.
- I-Furfural inokuncibilika okuphansi emanzini, kodwa iyancibilika otshwaleni nasezincibilikisini ze-ether.
- I-Furfural i-oxidized kalula futhi ibole kalula ukushisa.
Indlela:
- Indlela evamile yokulungiselela i-furfural itholakala nge-oxidation ye-C6 alkyl ketones (isb, i-hexanone).
- Isibonelo, i-hexanone ingafakwa i-oxidized ibe i-furfural kusetshenziswa umoya-mpilo kanye nezisusa ezifana ne-potassium permanganate noma i-hydrogen peroxide.
- Ngaphezu kwalokho, i-acetic acid ingaphinde isabele ngotshwala obuhlukahlukene be-C3-C5 (njenge-isoamyl alcohol, njll.) ukuze yakhe i-ester ehambisanayo, bese yehliswa ukuze kutholwe i-furfural.
Ulwazi Lokuphepha:
- I-Furfural inobuthi obuncane kodwa isadinga ukusetshenziswa futhi igcinwe ngokucophelela.
- Gwema ukuthinta isikhumba namehlo, futhi hashaza ngokushesha ngamanzi amaningi uma kwenzeka.
- Kufanele kuqashelwe ukugwema ukuthintana nama-oxidants aqinile, imithombo yokuthungela, njll. ngesikhathi sokugcinwa kanye nokusetshenziswa ukuvimbela umlilo noma ukuqhuma.
- Izimo zokungena komoya ezinhle kufanele zihlinzekwe ngesikhathi sokusetshenziswa ukuze kugwenywe ukuhogela umhwamuko.
