8.03528

Diacetyl

for synthesis

• Sinônimo(s): Diacetyl, 2,3-Butanedione, 2,3-Butadione, Dimethyldiketon, Dimethylglyoxal
• Fórmula empírica (Notação de Hill): C₄H₆O₂
• Número CAS: 431-03-8
• Peso molecular: 86.09
• Número MDL: MFCD00008756
• Código UNSPSC: 12352115
• Número do índice EC: 207-069-8
• NACRES: NA.22

Propriedades

• pressão de vapor: 52 hPa ( 20 °C)
• Nível de qualidade: 200
• Ensaio: ≥97.0% (GC)
• forma: liquid
• temperatura de autoignição: 365 °C
• potência: 1580 mg/kg LD₅₀, oral (Rat); >5000 mg/kg LD₅₀, skin (Rabbit)
• Lim. expl.: 2.4-13.0 % (v/v)
• pb: 89-90 °C/1013 hPa
• pf: -2 °C
• temperatura de transição: flash point 7 °C
• densidade: 0.99 g/cm³ at 20 °C
• temperatura de armazenamento: 2-8°C
• InChI: 1S/C4H6O2/c1-3(5)4(2)6/h1-2H3
• chave InChI: QSJXEFYPDANLFS-UHFFFAOYSA-N

Descrição

Aplicação

• Photosensitizer in Synthesis: Discusses diacetyl′s role as a non-toxic, readily available "traceless" photosensitizer in metal-free cross-dehydrogenative coupling reactions, highlighting its versatility and economic benefits (Huang et al., 2019).
• Detection in E-cigarettes: Investigates diacetyl as a precursor to hazardous emissions in e-cigarette liquids, providing insights into the health risks associated with its use in vaping products (Vas, Porter & McAdam, 2019).
• Antimicrobial Activity: Explores the synergistic antimicrobial properties of diacetyl combined with reuterin against foodborne pathogens, emphasizing its potential for enhancing food safety (Langa et al., 2014).
• Coffee Industry Exposure: Details exposure levels to diacetyl and other volatile organic compounds in coffee roasting and café settings, discussing occupational safety measures and health implications (LeBouf et al., 2020).

Nota de análise

Assay (GC, area%): ≥ 97.0 % (a/a)
Density (d 20 °C/ 4 °C): 0.984 - 0.987
Identity (IR): passes test

Informações de segurança

• Pictogramas: GHS02,GHS06,GHS08,GHS05
• Palavra indicadora: Danger
• Frases de perigo: H225,H302,H315,H317,H318,H331,H373
• Declarações de precaução: P210 - P280 - P301 + P312 - P304 + P340 + P311 - P305 + P351 + P338 - P314
• Classificações de perigo: Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation
• Órgãos-alvo: Respiratory system
• Código de classe de armazenamento: 3 - Flammable liquids
• Classe de risco de água (WGK): WGK 2
• Ponto de fulgor (°F): 44.6 °F - closed cup
• Ponto de fulgor (°C): 7 °C - closed cup