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

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

Ipropati yeMichiza:

Ifomula yeemolekyuli C4H6O2
IMisa yeMolar 86.09
Ukuxinana 0.985g/mLat 20°C
Indawo yokunyibilika -4–2 °C
Indawo yeBoling 88°C(lit.)
Indawo yokuflasha 45°F
Inombolo yeJECFA 408
Ukunyibilika kwamanzi 200 g/L (20 ºC)
Ukunyibilika 200g/l
Uxinzelelo loMphunga 52.2 mm Hg ( 20 °C)
Ukuxinana komphunga 3 (vs umoya)
Imbonakalo Ulwelo
Umbala Mthubi ocacileyo
Umda wokuvezwa ACGIH: TWA 0.01 ppm; STEL 0.02 ppmNIOSH: TWA 5 ppb; STEL 25 ppb
Merck 14,2966
I-BRN 605398
Imeko yoGcino Gcina ku +2°C ukuya +8°C.
Uzinzo Izinzile. Ukutsha. Ayihambelani ne-acids, iziseko ezinamandla, isinyithi, i-agent yokunciphisa, i-oxidizing agents. Khusela ukufuma kunye namanzi. Qaphela i-flashpoint ephantsi.
Umda wokuqhushumba 2.4-13.0%(V)
Refractive Index n20/D 1.394(lit.)
IiPropati zoMzimba kunye nezeMichiza Ubuninzi be-0.981
iqondo lokubila lama-88°C
refractive index 1.391-1.399
indawo edanyazayo ngu-7°C
Ukunyibilika kwamanzi 200g/L (20°C)
Sebenzisa Isetyenziselwa ukulungiselela i-flavour ye-cream, iyona nto iphambili yokuvelisa i-flavour ye-pyrazine

Iinkcukacha zeMveliso

Iithegi zeMveliso

Iikhowudi zoMngcipheko I-R11 – Iyatsha kakhulu
I-R20/22 – Iyingozi ngokuphefumla kwaye ukuba iginywe.
I-R38 – Iyacaphukisa ulusu
I-R41 – Umngcipheko womonakalo omkhulu emehlweni
I-R36/38 – Iyacaphukisa amehlo kunye nolusu.
I-R20/21/22 – Iyingozi ngokuphefumla, xa udibana nolusu naxa uginyiwe.
I-R37/38 – Iyacaphukisa inkqubo yokuphefumla kunye nolusu.
Inkcazelo yoKhuseleko S9 – Gcina isikhongozeli kwindawo engenamoya.
S16 – Gcina kude kwimithombo yomlilo.
S26 – Xa udibana namehlo, hlambulula ngokukhawuleza ngamanzi amaninzi kwaye ufune iingcebiso zonyango.
I-S37/39 -Nxiba iiglavu ezifanelekileyo kunye nokukhusela amehlo / ubuso
S36/37/39 – Nxiba iimpahla ezifanelekileyo zokukhusela, iiglavu kunye nokukhusela amehlo/ubuso.
S39 –Nxiba ukhuseleko lwamehlo / ubuso.
Izazisi ze-UN UN 2346 3/PG 2
WGK eJamani 2
RTECS EK2625000
FLUKA BRAND F IIKHOWUDI 13
I-TSCA Ewe
Ikhowudi ye-HS 29141990
IKlasi yeeNgozi 3
Iqela lokuPakisha II
Ubutyhefu I-LD50 ngomlomo kwiimpuku: 1580 mg/kg (Jenner)

 

Intshayelelo

I-2,3-i-Butanedione yi-organic compound. Oku kulandelayo kukwazisa kwiipropati, ukusetyenziswa, iindlela zokulungiselela kunye nolwazi lokhuseleko lwe-2,3-butanedione:

 

Umgangatho:

- Imbonakalo: I-2,3-Butanedione ilulwelo olungenambala kunye nephunga elimnandi.

- Ukunyibilika: Inyibilika emanzini nakwizinyibilikisi ezininzi eziphilayo.

- Ukuzinza: I-2,3-butanedione izinzile ekukhanyeni kunye nokushisa.

 

Sebenzisa:

- Izicelo zoshishino: I-2,3-butanedione isoloko isetyenziswa njengento ekrwada ye-solvents, i-coatings kunye ne-additives zeplastiki.

- Iimpendulo zeMichiza: Ingasetyenziswa njenge-reaction intermediates kwi-organic synthesis, njenge-synthesis kunye ne-oxidation yeetoni.

 

Indlela:

- Indlela yokudibanisa eqhelekileyo kukufumana i-2,3-butanedione nge-oxidation ye-butanedione. Oku kufezekiswa ngokuphendula i-2-butanone nge-oksijini phambi kwe-catalyst.

 

Ulwazi ngoKhuseleko:

- 2,3-Butanedione iyacaphukisa, ngakumbi emehlweni kunye nolusu. Kuphephe ukudibana nesikhumba kunye namehlo ngexesha lokusetyenziswa, kwaye uhlambe ngokukhawuleza ngamanzi amaninzi ukuba kukho ukudibanisa.

- Lulwelo olunokutsha kwaye kufuneka lugwenywe ekudibaneni nemithombo yomlilo kwaye lusetyenziswe kwindawo enomoya.

- Kwimeko yokungenwa ngengozi okanye ukuphefumla, funa unyango ngokukhawuleza.

 

  • Ngaphambili:
  • Okulandelayo:
    • Bhala umyalezo wakho apha kwaye uwuthumele kuthi

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