Food safety and quality
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Flavouring |
Isobutyl alcohol |
Synonym(s) |
Isobutanol |
Latest JECFA evaluation |
2000 (Session 55) |
Status of specification |
Full |
Information required |
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Chemical name |
2-Methylpropanol |
JECFA number |
251 |
CAS number |
78-83-1 |
FEMA number |
2179 |
COE number |
49 |
FLAVIS number |
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Molecular weight |
74.12 |
Chemical formula |
C4H10O |
Physical form/odour |
colourless, mobile liquid with a penetrating, winey odour |
Solubility |
miscible with alcohol, ether; soluble in water 1 ml in 140 ml |
Solubility in ethanol |
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Boiling point (°C) |
108° |
Assay min % |
98% |
Acid value max |
2 |
Refractive index |
1.392-1.398 |
Specific gravity |
0.799-0.801 |
Other requirements |
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ID Test |
IR |
Spectrum |
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