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1.09709

Ethyl methyl ketone

reference substance for gas chromatography

Synonym(s):

Ethyl methyl ketone, 2-Butanone, Methyl ethyl ketone, MEK

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About This Item

Empirical Formula (Hill Notation):
C4H8O
CAS Number:
78-93-3
Molecular Weight:
72.11
EC Index Number:
201-159-0
UNSPSC Code:
12352115
MDL number:
MFCD00011648
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vapor pressure

105 hPa ( 20 °C)

Quality Segment

100

assay

≥99.5% (GC)

form

liquid

autoignition temp.

514 °C

potency

3400 mg/kg LD50, oral (Rat), >8000 mg/kg LD50, skin (Rabbit)

expl. lim.

1.8-11.5 % (v/v)

technique(s)

gas chromatography (GC): suitable

pH

7 (20 °C)

bp

79.6 °C/1013 hPa

mp

-86 °C

transition temp

flash point -4 °C

solubility

292 g/L

density

0.805 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

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

InChI key

ZWEHNKRNPOVVGH-UHFFFAOYSA-N

Analysis Note

Assay (GC): ≥ 99.5 %
Identity (IR): conforms

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pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Danger

Hazard Classifications

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

target_organs

Central nervous system

supp_hazards

EUH066

Storage Class

3 - Flammable liquids

wgk

WGK 1

flash_point_f

30.2 °F - closed cup

flash_point_c

-1 °C - closed cup

Certificates of Analysis (COA)

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