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Diacetyl 2-3-Diketo butane (CAS#431-03-8) Foto egosipụtara
  • Diacetyl 2-3-Diketo butane (CAS#431-03-8) 1

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

Ngwongwo kemịkalụ:

Usoro ihe omimi C4H6O2
Molar Mass 86.09
Njupụta 0.985g/mLat 20°C
Ebe Na-agbaze -4-2 Celsius C
Ebe Boling 88°C (ọkụ)
Ebe mgbari 45°F
Nọmba JECFA 408
Mmiri Solubility 200 g/L (20ºC)
Solubility 200 g / l
Uzuoku nrịbama 52.2 mm Hg (20 Celsius C)
Uzuoku Njupụta 3 (vs ikuku)
Ọdịdị Mmiri mmiri
Agba edo edo doro anya
Oke ngosi ACGIH: TWA 0.01 ppm; STEL 0.02 ppmNIOSH: TWA 5 ppb; STEL 25 pb
Merck 14,2966
BRN 605398
Ọnọdụ Nchekwa Na-echekwa na +2°C ruo +8°C.
Nkwụsi ike Kwụsie ike. Enwere ike ire ọkụ. Na-ekwekọghị na acids, ntọala siri ike, ọla, ndị na-ebelata ihe, ihe ndị na-emepụta oxidizing. Chebe mmiri na mmiri. Rịba ama ebe ọkụ ọkụ dị ala.
Oke ihe mgbawa 2.4-13.0% (V)
Ntụgharị uche n20/D 1.394 (ọkụ)
Njirimara anụ ahụ na kemịkalụ Njupụta 0.981
ihe na-esi ísì ụtọ 88 ° C
Ntụgharị ntụgharị 1.391-1.399
ihe ọkụ ọkụ 7°C
mmiri soluble 200g/L (20°C)
Jiri A na-eji ya maka nkwadebe nke ụtọ ude, bụ isi ihe eji eme ihe maka imepụta ekpomeekpo pyrazine

Nkọwa ngwaahịa

Mkpado ngwaahịa

Koodu ihe egwu R11 - Na-agba ọkụ nke ukwuu
R20/22 - na-emerụ ahụ site na iku ume ma ọ bụrụ na iloro ya.
R38 - na-akpasu iwe na akpụkpọ ahụ
R41 - Ihe ize ndụ nke mmebi anya dị njọ
R36 / 38 - na-akpasu anya na akpụkpọ ahụ.
R20/21/22 - na-emerụ ahụ site na iku ume, na kọntaktị na akpụkpọ ahụ ma ọ bụrụ na loro ya.
R37 / 38 - na-akpasu iwe na usoro iku ume na akpụkpọ ahụ.
Nkọwapụta nchekwa S9 - Debe akpa na ebe ikuku na-ekpo ọkụ.
S16 - Wepụ ya na isi mmalite nke mgbanye.
S26 - N'ihe banyere kọntaktị na anya, kpochaa ozugbo na ọtụtụ mmiri ma chọọ ndụmọdụ ahụike.
S37/39 - Yiri uwe aka kwesịrị ekwesị na nchebe anya / ihu
S36 / 37/39 - Yiri uwe nchebe kwesịrị ekwesị, uwe aka na nchebe anya / ihu.
S39 - Yiri anya / nchedo ihu.
NJ UN UN 2346 3/PG 2
WGK Germany 2
RTECS EK2625000
FLUKA BRAND F CODES 13
TSCA Ee
Koodu HS 29141990
Klas Hazard 3
Otu nkwakọ ngwaahịa II
Nsi LD50 ọnụ na oke: 1580 mg / kg (Jenner)

 

Okwu mmalite

2,3-Butanedione bụ ngwakọta organic. Ihe na-esonụ bụ mmalite nke ihe onwunwe, ojiji, ụzọ nkwadebe na ozi nchekwa nke 2,3-butanedione:

 

Ogo:

- Ọdịdị: 2,3-Butanedione bụ mmiri mmiri na-enweghị agba nke nwere isi ísì.

- Solubility: Ọ na-agbaze na mmiri na ọtụtụ ihe mgbaze organic.

- Nkwụsi ike: 2,3-butanedione dị ntakịrị na ìhè na okpomọkụ.

 

Jiri:

- Ngwa ụlọ ọrụ: 2,3-butanedione na-ejikarị eme ihe dị ka ihe eji eme ihe maka ihe mgbaze, mkpuchi na ihe mgbakwunye plastik.

- Mmeghachi omume kemịkalụ: Enwere ike iji ya dị ka mmeghachi omume etiti na njikọ organic, dị ka njikọ na oxidation nke ketones.

 

Usoro:

- Usoro njikọ ahụkarị bụ ịnweta 2,3-butanedione site na oxidation nke butanedione. A na-enweta nke a site n'ịmeghachi omume 2-butanone na oxygen na ọnụnọ nke onye na-eme ihe.

 

Ozi nchekwa:

- 2,3-Butanedione na-akpasu iwe, ọkachasị anya na akpụkpọ ahụ. Zere kọntaktị na akpụkpọ ahụ na anya mgbe ị na-eji ya, ma jiri mmiri buru ibu kpochaa ozugbo ma ọ bụrụ na enwere kọntaktị.

- Ọ bụ mmiri mmiri na-ere ọkụ, a ga-ezere ya na kọntaktị na isi ọkụ ma jiri ya mee ihe na mpaghara ikuku.

- Ọ bụrụ na ịri nri ma ọ bụ iku ume na mberede, chọọ nlekọta ahụike ozugbo.

 

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