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I-Diacetyl 2-3-Diketo butane (CAS#431-03-8) Isithombe Esifakiwe
  • I-Diacetyl 2-3-Diketo butane (CAS#431-03-8) 1

I-Diacetyl 2-3-Diketo butane (CAS#431-03-8)

Isakhiwo Samakhemikhali:

I-Molecular Formula I-C4H6O2
I-Molar Mass 86.09
Ukuminyana 0.985g/mLat 20°C
I-Melting Point -4–2 °C
I-Boling Point 88°C(lit.)
I-Flash Point 45°F
Inombolo ye-JECFA 408
Ukuncibilika kwamanzi 200 g/L (20 ºC)
Ukuncibilika 200g/l
I-Vapor Presure 52.2 mm Hg ( 20 °C)
I-Vapor Density 3 (vs emoyeni)
Ukubukeka Uketshezi
Umbala Okuphuzi okucacile
Umkhawulo Wokuchayeka ACGIH: TWA 0.01 ppm; I-STEL 0.02 ppmNIOSH: TWA 5 ppb; I-STEL 25 ppb
I-Merck 14,2966
I-BRN 605398
Isimo Sesitoreji Gcina ku-+2°C ukuya ku-+8°C.
Ukuzinza Izinzile. Okuvutha umlilo. Akuhambisani nama-acids, izisekelo eziqinile, izinsimbi, ama-ejenti anciphisayo, ama-oxidizing agents. Vikela kumswakama kanye namanzi. Qaphela i-flashpoint ephansi.
Umkhawulo Oqhumayo 2.4-13.0%(V)
I-Refractive Index n20/D 1.394(lit.)
Izakhiwo Zomzimba Nezamakhemikhali Ukuminyana 0.981
indawo yokubilisa engu-88°C
inkomba ye-refractive 1.391-1.399
iphoyinti elikhanyayo 7°C
ukuncibilika emanzini 200g/L (20°C)
Sebenzisa Isetshenziselwa ukulungisa ukunambitheka kwekhilimu, yiyona nto eyinhloko yokukhiqiza ukunambitheka kwe-pyrazine

Imininingwane Yomkhiqizo

Omaka bomkhiqizo

Amakhodi Engozi I-R11 – Ivutha Kakhulu
U-R20/22 – Kuyingozi ngokuhogela umoya futhi uma ugwinyiwe.
R38 – Ukucasuka esikhunjeni
R41 – Ingozi yokulimala okubi emehlweni
R36/38 – Ukucasuka emehlweni nasesikhumbeni.
R20/21/22 – Kuyingozi ngokuhogela umoya, ukuthintana nesikhumba futhi uma ukugwinyile.
R37/38 – Ukucasula uhlelo lokuphefumula kanye nesikhumba.
Incazelo Yokuphepha I-S9 – Gcina isiqukathi endaweni enomoya omuhle.
S16 – Zigcine kude nemithombo yokuthungela.
S26 – Uma uthintana namehlo, geza ngokushesha ngamanzi amaningi futhi ufune iseluleko sezokwelapha.
I-S37/39 – Gqoka amagilavu ​​afanelekile kanye nokuvikela iso/ubuso
S36/37/39 – Gqoka izingubo zokuzivikela ezifanele, amagilavu ​​kanye nokuvikela iso/ubuso.
S39 – Gqoka ukuvikela iso / ubuso.
Ama-ID e-UN UN 2346 3/PG 2
I-WGK Germany 2
I-RTECS EK2625000
AMAKHODI E-FLUKA BRAND F 13
I-TSCA Yebo
Ikhodi ye-HS 29141990
I-Hazard Class 3
Iqembu Lokupakisha II
Ubuthi I-LD50 ngomlomo kumagundane: 1580 mg/kg (Jenner)

 

Isingeniso

I-2,3-Butanedione iyinhlanganisela yezinto eziphilayo. Okulandelayo yisingeniso sezakhiwo, ukusetshenziswa, izindlela zokulungiselela kanye nolwazi lokuphepha lwe-2,3-butanedione:

 

Ikhwalithi:

- Ukubukeka: 2,3-Butanedione uketshezi olungenambala olunephunga elimnandi.

- Ukunyibilika: Kuncibilika emanzini nasezincibilikisini eziningi eziphilayo.

- Ukuzinza: I-2,3-butanedione izinzile ekukhanyeni nasekushiseni.

 

Sebenzisa:

- Izicelo zezimboni: I-2,3-butanedione ivame ukusetshenziswa njengempahla eluhlaza yezincibilikisi, izigqoko nezithasiselo zepulasitiki.

- Ukusabela kwamakhemikhali: Ingasetshenziswa njengezihlanganisi zokusabela ku-organic synthesis, njengokuhlanganiswa kanye ne-oxidation yama-ketone.

 

Indlela:

- Indlela ejwayelekile yokuhlanganisa ukuthola i-2,3-butanedione nge-oxidation ye-butanedione. Lokhu kufinyelelwa ngokusabela ku-2-butanone nge-oxygen phambi kwe-catalyst.

 

Ulwazi Lokuphepha:

- 2,3-Butanedione iyacika, ikakhulukazi emehlweni nasesikhumbeni. Gwema ukuthinta isikhumba namehlo ngenkathi usebenzisa, futhi ugeze ngokushesha ngamanzi amaningi uma kukhona ukuxhumana.

- Iwuketshezi oluvuthayo futhi kufanele igwenywe ukuthintana nemithombo yomlilo futhi isetshenziswe endaweni enomoya omuhle.

- Uma ungenwa ngephutha noma uhogele umoya, funa usizo lwezempilo ngokushesha.

 

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