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Online Edition: "Specifications for Flavourings"
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| Flavouring |
2-Butanone |
| Synonym(s) |
Ethyl methyl ketone
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| Latest JECFA evaluation |
1998 (Session 51)
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| Status of specification |
Full |
| Chemical name |
Butan-2-one
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| JECFA number |
278 |
| CAS number |
78-93-3
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| FEMA number |
2170
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| COE number |
753
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| FLAVIS number |
-
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| Molecular weight |
72.11 |
| Chemical formula |
C4H8O
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| Physical form/odour |
colourless, mobile liquid with an ethereal, nauseating odour |
| Solubility |
miscible with alcohol, ether, most fixed oils; 1 ml in 4 ml water |
| Solubility in ethanol |
- |
| Boiling point (°C) |
78.6-80 |
| Assay min % |
99.5 |
| Acid value max |
2.0 |
| Refractive index |
1.375-1.384 |
| Specific gravity |
0.801-0.803 |
| Other requirements |
Distillation range: within 1.5°; Water: =<0.2% |
| ID Test |
IR |
| Spectrum |
http://www.fao.org/ag/agn/jecfa-flav/img/img/278.gif
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