Safety data for 2-butanone
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Toxicity data
Irritation data
Risk phrases
Safety phrases
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for it. General
Synonyms: methylacetone, ethyl methyl ketone, methyl ethyl ketone, MEK,
butanone, MEETCO
Molecular formula: C4H8O
CAS No: 78-93-3
EINECS No: 201-159-0 Physical data
Appearance: colourless liquid
Melting point: -87 C
Boiling point: 80 C
Vapour density: 2.49 (air = 1)
Vapour pressure: 71 mm Hg at 20 C
Density (g cm-3): 0.805
Flash point: -3 C
Explosion limits: 1.8% - 10.1%
Autoignition temperature: 515 C
Water solubility:
Stability
Stable. Highly flammable. Incompatible with
oxidizing agents, bases, strong reducing agents. Protect from moisture.
Toxicology
Severe eye irritant. Can cause CNS
depression. Skin irritant. May be harmful by ingestion, inhalation or through
skin contact. May cause dermatitis.
(The meaning of any abbreviations which appear in this section is given
here.)
ORL-RAT LD50 2737 mg kg-1
IHL-RAT LC50 23500 mg/m3/8h
IPR-RAT LD50 607 mg kg-1
ORL-MUS LD50 4050 mg kg-1
IHL-MAM LC50 38 g m-3
IHL-MUS LC50 32 g/m3/4h
(The meaning of any abbreviations which appear in this section is given
here.)
EYE-HMN 350 ppm
SKN-RBT 500 mg/24 mod
SKN-RBT 402 mg/24h mld
SKN-RBT 14 mg/24h open mld
(The meaning of any risk phrases which appear in this section is given
here.)
R11 R36 R37. Transport information
(The meaning of any UN hazard codes which appear in this section
is given
here.)
Hazard class: 3.0. UN No 1193. Packing group: II.
Personal protection
Safety glasses, adquate ventilation.
(The meaning of any safety phrases which appear in this section is given
here.)
S9 S16 S25 S33.