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

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

Thepa ea Lik'hemik'hale:

Foromo ea limolek'hule C4H6O2
'Misa oa Molar 86.09
Botenya 0.985g/mLat 20°C
Melting Point -4–2 °C
Boling Point 88°C(mabone)
Flash point 45°F
JECFA Nomoro 408
Ho qhibiliha ha Metsi 200 g/L (20 ºC)
Solubility 200g/l
Khatello ea Mouoane 52.2 mm Hg (20 °C)
Tekano ea Mouoane 3 (khahlanong le moea)
Ponahalo Mokelikeli
Mmala Bosehla bo hlakileng
Moedi wa ho pepeseha ACGIH: TWA 0.01 ppm; STEL 0.02 ppmNIOSH: TWA 5 ppb; STEL 25 ppb
Merck 14,2966
BRN 605398
Boemo ba polokelo Boloka ho +2°C ho ea ho +8°C.
Botsitso E tsitsitseng. E tukang mollo. Ha e lumellane le li-acids, metheo e matla, litšepe, lisebelisoa tse fokotsang, li-oxidizing agents. Sireletsa mongobo le metsi. Ela hloko flashpoint e tlase.
Qeto ea ho phatloha 2.4-13.0%(V)
Refractive Index n20/D 1.394(lit.)
Thepa ea 'Mele le ea Lik'hemik'hale Boima ba 0.981
ntlha e belang 88°C
refractive index 1.391-1.399
ntlha ea khanya ea 7°C
qhibilihang ka metsing 200g/L (20°C)
Sebelisa E sebelisetsoa ho lokisetsa tatso ea tranelate, ke eona ntho e ka sehloohong e tala bakeng sa tlhahiso ea tatso ea pyrazine

Lintlha tsa Sehlahisoa

Li-tag tsa Sehlahisoa

Likhoutu tsa Kotsi R11 – E tuka Haholo
R20/22 – E kotsi ka ho hema le haeba e koetsoe.
R38 – Ho teneha letlalong
R41 – Kotsi ya tshenyo e kgolo mahlong
R36/38 – Ho hlohlona mahlong le letlalong.
R20/21/22 – E kotsi ka ho hema, ho kopana le letlalo le ha e koetsoe.
R37/38 – E tenang tsamaiso ya ho hema le letlalo.
Tlhaloso ea Tšireletseho S9 - Boloka setshelo sebakeng se nang le moea o motle.
S16 - Ipoloke hole le mehloli ea mollo.
S26 - Ha u kopana le mahlo, hlatsoa hang-hang ka metsi a mangata 'me u batle keletso ea bongaka.
S37/39 - Apara liatlana tse loketseng le tšireletso ea mahlo / sefahleho
S36/37/39 - Apara liaparo tse loketseng tsa tšireletso, liatlana le tšireletso ea mahlo / sefahleho.
S39 - Apara ts'ireletso ea mahlo / sefahleho.
Li-ID tsa UN UN 2346 3/PG 2
WGK Jeremane 2
RTECS EK2625000
LIKHOUTU FLUKA BRAND F 13
TSCA Ee
Khoutu ea HS 29141990
Sehlopha sa Likotsi 3
Sehlopha sa ho paka II
Chefo LD50 ka molomo ho likhoto: 1580 mg/kg (Jenner)

 

Selelekela

2,3-Butanedione ke motsoako oa lintho tse phelang. Se latelang ke selelekela sa thepa, tšebeliso, mekhoa ea ho lokisa le tlhaiso-leseling ea polokeho ea 2,3-butanedione:

 

Boleng:

- Ponahalo: 2,3-Butanedione ke mokelikeli o se nang 'mala o nang le monko o monate.

- Sollubility: E qhibiliha ka metsing le ka har'a metsoako e mengata ea tlhaho.

- Botsitso: 2,3-butanedione e batla e tsitsitse ho khanya le mocheso.

 

Sebelisa:

- Lisebelisoa tsa indasteri: 2,3-butanedione e atisa ho sebelisoa e le lisebelisoa tse tala bakeng sa li-solvents, liaparo le li-additives tsa polasetiki.

- Karabelo ea lik'hemik'hale: E ka sebelisoa e le li-intermediate tsa karabelo ho organic synthesis, joalo ka motsoako le oxidation ea li-ketone.

 

Mokhoa:

- Mokhoa o tloaelehileng oa ho kopanya ke ho fumana 2,3-butanedione ka oxidation ea butanedione. Sena se finyelloa ka ho itšoara ka 2-butanone ka oksijene ka pel'a mokelikeli.

 

Lintlha tsa Tšireletseho:

- 2,3-Butanedione e halefisa, haholo-holo mahlong le letlalo. Qoba ho kopana le letlalo le mahlo nakong ea tšebeliso, 'me u hlatsoe hang-hang ka metsi a mangata haeba ho na le ho kopana.

- Ke mokelikeli o tukang 'me o lokela ho qojoa hore o se kopane le mehloli ea mollo mme o sebelisoe sebakeng se nang le moea o motle.

- Haeba motho a ka ja ka phoso kapa a hema, batla thuso ea bongaka hang-hang.

 

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