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Key Documents

Safety Information

34861-M

Sigma-Aldrich

2-Butanone

suitable for HPLC, ≥99.7%

Synonym(s):

Ethyl methyl ketone, MEK, Methyl ethyl ketone

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About This Item

Linear Formula:
C2H5COCH3
CAS Number:
Molecular Weight:
72.11
Beilstein:
741880
EC Number:
MDL number:
UNSPSC Code:
41116105
NACRES:
NA.07

vapor density

2.49 (vs air)

vapor pressure

71 mmHg ( 20 °C)

Assay

≥99.7%

form

liquid

autoignition temp.

960 °F

expl. lim.

10.1 %

technique(s)

HPLC: suitable

impurities

≤0.001% free acid (as CH3COOH)
≤0.1% water

evapn. residue

≤0.001%

refractive index

n20/D 1.379 (lit.)

bp

80 °C (lit.)

mp

−87 °C (lit.)

density

0.805 g/mL at 25 °C (lit.)

UV absorption

λ: 335 nm Amax: ≤0.3
λ: 340 nm Amax: ≤0.1
λ: 350 nm Amax: ≤0.01

SMILES string

CC(CC)=O

InChI

1S/C4H8O/c1-3-4(2)5/h3H2,1-2H3

InChI key

ZWEHNKRNPOVVGH-UHFFFAOYSA-N

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Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - STOT SE 3

Target Organs

Central nervous system

Supplementary Hazards

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

30.2 °F - closed cup

Flash Point(C)

-1 °C - closed cup


Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

PDSCL

Deleterious substance

FSL

Group 4: Flammable liquids
Type 1 petroleums
Hazardous rank II
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

34861-4X2.5L:4548173260167
34861-1L-M:
34861-50L-P2-LS:
34861-6X1L:4548173260198
34861-BULK:
34861-1L:4548173229645
34861-50L-P2:
34861-4X4L:4548173260181
34861-2.5L:4548173260150
34861-100ML:4548173218281
34861-4L:4548173229669
34861-VAR:
34861-2L:4548173229652
34861-100ML-M:
34861-4X2L:4548173260174


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