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Diacetyl

Synonyms: 2,3-Butanedione, 2,3-Butadione, Dimethyldiketon, Dimethylglyoxal

CAS #: 431-03-8 EC Number: 207-069-8 Molar Mass: 86.09 g/mol Chemical Formula: CH₃COCOCH₃ Hill Formula: C₄H₆O₂

Overview

Key Spec Table

CAS # EC Number Hill Formula Chemical Formula Molar Mass
431-03-8 207-069-8 C₄H₆O₂ CH₃COCOCH₃ 86.09 g/mol

Pricing & Availability

Catalogue Number Availability Packaging Qty/Pack Price Quantity
8035280002
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Glass bottle 2 ml
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8035280100
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Alu bottle 100 ml
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8035280250
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Alu bottle 250 ml
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Description
Catalogue Number 803528
Synonyms 2,3-Butanedione, 2,3-Butadione, Dimethyldiketon, Dimethylglyoxal
Description Diacetyl

Product Information
CAS number 431-03-8
EC number 207-069-8
Hill Formula C₄H₆O₂
Chemical formula CH₃COCOCH₃
Molar Mass 86.09 g/mol
HS Code 2914 19 90
Structure formula Image Structure formula Image
Quality Level MQ200

Applications
Application Diacetyl for synthesis. CAS 431-03-8, chemical formula CH₃COCOCH₃.

Physicochemical Information
Boiling point 89 – 90 °C (1013 hPa)
Density 0.99 g/cm3 (20 °C)
Explosion limit 2.4 – 13.0 %(V)
Flash point 5 °C
Ignition temperature 365 °C
Melting Point -2 °C
Vapor pressure 69.6 hPa (20 °C)
Solubility 200 g/l

Toxicological Information
LD 50 oral LD50 Rat 1580 mg/kg
LD 50 dermal LD50 Rabbit > 5000 mg/kg

Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Statement(s) H225: Highly flammable liquid and vapour.
H302: Harmful if swallowed.
H315: Causes skin irritation.
H317: May cause an allergic skin reaction.
H318: Causes serious eye damage.
H331: Toxic if inhaled.
H373: May cause damage to organs through prolonged or repeated exposure if inhaled.
Precautionary Statement(s) P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.
P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.
P304 + P340 + P311: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Call a POISON CENTER/doctor.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P314: Get medical advice/ attention if you feel unwell.
P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
Signal Word Danger
RTECS EK2625000
Storage class 3 Flammable liquids
WGK WGK 2 obviously hazardous to water
Disposal 3
Relatively unreactive organic reagents should be collected in container A. If halogenated, they should be collected in container B. For solid residues use container C.

Safety Information
Categories of danger highly flammable, harmful, irritant

Storage and Shipping Information
Storage Store at +2°C to +8°C.

Transport Information
Declaration (railroad and road) ADR, RID UN 2346 , 3, II
Declaration (transport by air) IATA-DGR UN 2346 , 3, II
Declaration (transport by sea) IMDG-Code UN 2346 , 3, II

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

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