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Standard and Specification
> Synthetic Additives
> Geraniol
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| Chemical Formula |
C10H18O |
| Molecular Weight |
154.25 |
| [Compositional Specifications of Geraniol] |
| Content |
Geraniol should contain not less than 88.0% of geraniol (C10H18O). |
| Description |
Geraniol is a colorless to light yellow, transparent liquid having a characteristic odor. |
| Identification |
To 1 ml of Geraniol, add 1 ml of acetic Anhydrous and 1 drop of phosphoric acid, keep at a slightly warm temperature for 10 minutes, add 1 ml of water, shake in hot water for 5 minutes, cool, and make slightly alkaline with anhydrous sodium carbonate solution. An odor of geranyl acetate is evolved. |
| Purity |
(1) Specific gravity : Specific gravity should be within a range of 0.870～0.885
(2) Refractive index : Refractive Index n(20, D) should be within a range of 1.469～1.478.
(3) Clarity of Solution : When 1 ml of the solution is dissolved in 3 ml of 70% alcohol should be clear.
(4) Acid Value : Acid Value of Geraniol is tested by Acid Value in Flavoring Substance Test. It should not be more than 1.
(5) Ester value : Weigh accurately about 5 g Geraniol is tested by Ester Value in Flavoring Substance Test. It should not be more than 3.
(6) Aldehyde : Weigh accurately about 5 g of Geraniol, and proceed as directed in Method 2 under Aldehyde and Ketone Content in Flavoring Substances Tests. In the procedure, allow the mixture to stand for 15 minutes before titrating. The volume of consumed 0.5 N hydrochloric acid is not more than 0.65 ml. |
| Assay |
Proceed as directed in Method 1 under Alcohol Content in Flavoring Substances Tests, using 1 g of acetylated oil. |
| Permitted Use Level of Geraniol |
Geraniol should only be used for flavorings. |
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