8.03528

Diacetyl

for synthesis

• Sinonimo/i: Diacetyl, 2,3-Butanedione, 2,3-Butadione, Dimethyldiketon, Dimethylglyoxal
• Formula empirica (notazione di Hill): C₄H₆O₂
• Numero CAS: 431-03-8
• Peso molecolare: 86.09
• Numero MDL: MFCD00008756
• Codice UNSPSC: 12352115
• Numero indice EU: 207-069-8
• NACRES: NA.22

Proprietà

• Tensione di vapore: 52 hPa ( 20 °C)
• Livello qualitativo: 200
• Saggio: ≥97.0% (GC)
• Forma fisica: liquid
• Temp. autoaccensione: 365 °C
• Potenza: 1580 mg/kg LD₅₀, oral (Rat); >5000 mg/kg LD₅₀, skin (Rabbit)
• Limite di esplosione: 2.4-13.0 % (v/v)
• P. eboll.: 89-90 °C/1013 hPa
• Punto di fusione: -2 °C
• Temp. transizione: flash point 7 °C
• Densità: 0.99 g/cm³ at 20 °C
• Temperatura di conservazione: 2-8°C
• InChI: 1S/C4H6O2/c1-3(5)4(2)6/h1-2H3; QSJXEFYPDANLFS-UHFFFAOYSA-N

Descrizione

Applicazioni

• 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).

Risultati analitici

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

Informazioni sulla sicurezza

• Pittogrammi: GHS02,GHS06,GHS08,GHS05
• Avvertenze: Danger
• Indicazioni di pericolo: H225,H302,H315,H317,H318,H331,H373
• Consigli di prudenza: P210 - P280 - P301 + P312 - P304 + P340 + P311 - P305 + P351 + P338 - P314
• Classi di pericolo: Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - Skin Sens. 1 - STOT RE 2 Inhalation
• Organi bersaglio: Respiratory system
• Codice della classe di stoccaggio: 3 - Flammable liquids
• Classe di pericolosità dell'acqua (WGK): WGK 2
• Punto d’infiammabilità (°F): 44.6 °F - closed cup
• Punto d’infiammabilità (°C): 7 °C - closed cup