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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)

Chemical Property:

Molecular Formula C4H6O2
Molar Misa 86.09
Density 0.985g/mLat 20°C
Melting Point -4–2 °C
Boling Point 88°C(lit.)
Flash Point 45°F
Nhamba yeJECFA 408
Mvura Solubility 200 g/L (20 ºC)
Solubility 200g/l
Vapor Presure 52.2 mm Hg (20 °C)
Vapor Density 3 (vs mhepo)
Chitarisiko Liquid
Color Yero yakachena
Exposure Limit ACGIH: TWA 0.01 ppm; STEL 0.02 ppmNIOSH: TWA 5 ppb; STEL 25 ppb
Merck 14,2966
BRN 605398
Storage Condition Chengetedza pa +2°C kusvika +8°C.
Kugadzikana Yakagadzikana. Inopisa moto. Hazvienderane neasidhi, mabhesi akasimba, simbi, zvinoderedza vamiririri, oxidizing agents. Dzivirira kubva pakunyorova nemvura. Cherechedza yakaderera flashpoint.
Explosive Limit 2.4-13.0%(V)
Refractive Index n20/D 1.394(lit.)
Zvenyama uye Chemical Properties Density 0.981
Kufashaira kwe88°C
refractive index 1.391-1.399
flash point 7°C
mvura inonyungudika 200g/L (20°C)
Shandisa Inoshandiswa kugadzirira kunhuhwirira kwekrimu, ndiyo inonyanya kushandiswa pakugadzirwa kwepirazine flavour

Product Detail

Product Tags

Risk Codes R11 - Inopisa zvakanyanya
R20/22 – Zvinokuvadza nekufema uye kana ikamedzwa.
R38 – Kushungurudza ganda
R41 - Njodzi yekukuvara kwakakomba kwemaziso
R36/38 - Kushungurudza maziso neganda.
R20/21/22 – Zvinokuvadza nekufema, kubata ganda uye kana ikamedzwa.
R37/38 - Inogumbura kune yekufema system uye ganda.
Tsanangudzo Yekuchengetedza S9 - Chengetedza mudziyo uri munzvimbo ine mhepo inofefetera.
S16 - Chengetedza kure nenzvimbo dzekudzima.
S26 – Kana wasangana nemaziso, sukurudza nekukurumidza nemvura yakawanda uye tsvaga mazano ekurapwa.
S37/39 - Pfeka magirovhosi akakodzera uye dziviriro yeziso / kumeso
S36/37/39 - Pfeka zvipfeko zvekudzivirira zvakakodzera, magurovhosi uye kudzivirira kweziso/chiso.
S39 - Pfeka dziviriro yeziso / kumeso.
UN IDs UN 2346 3/PG 2
WGK Germany 2
RTECS EK2625000
FLUKA BRAND F CODES 13
TSCA Ehe
HS Code 29141990
Hazard Kirasi 3
Packing Group II
Muchetura LD50 nemuromo mumakonzo: 1580 mg/kg (Jenner)

 

Nhanganyaya

2,3-Butanedione is an organic compound. Iyi inotevera sumo yezvivakwa, kushandiswa, nzira dzekugadzirira uye ruzivo rwekuchengetedza ye2,3-butanedione:

 

Hunhu:

- Kuonekwa: 2,3-Butanedione imvura isina ruvara uye inonhuwa.

- Solubility: Inonyungudika mumvura uye mune akawanda organic solvents.

- Kugadzikana: 2,3-butanedione yakagadzikana kune chiedza uye kupisa.

 

Shandisa:

- Zvishandiso zveindasitiri: 2,3-butanedione inowanzoshandiswa seyakasvibirira yezvinonyungudutsa, machira uye epurasitiki ekuwedzera.

-Kemikari maitiro: Inogona kushandiswa seyekuita yepakati mune organic synthesis, senge synthesis uye oxidation yemaketoni.

 

Nzira:

- Iyo yakajairika synthesis nzira ndeyekuwana 2,3-butanedione neoxidation yebutanedione. Izvi zvinowanikwa kuburikidza nekuita 2-butanone neokisijeni muhupo hwekugadzirisa.

 

Zvekuchengetedza

- 2,3-Butanedione inoshungurudza, kunyanya kumaziso uye ganda. Dzivisa kusangana neganda nemaziso panguva yekushandisa, uye sukurudza nekukurumidza nemvura yakawanda kana paine kusangana.

- Imvura inopfuta uye inofanirwa kudzivirirwa kubva pakusangana neinodzima moto uye inoshandiswa munzvimbo inofefetera zvakanaka.

- Kana ukapinzwa netsaona kana kufema, tsvaga kurapwa nekukurumidza.

 

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