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EC number: 939-227-3
CAS number: -
Measured water solubility of Patchouli, ext. (whole substance) at 20 °C: 12.3 mg/L (loading rate of 0.1 g/L) and 20.9 mg/L (loading rate of 1.0 g/L) (Method A6)
For environmental risk
assessment purposes, 3 constituents have been identified that represent
blocks of related constituents in Patchouli Oil. These are alpha-guaiene
(represents sesquiterpene hydrocarbons with lower boiling point),
alpha-bulnesene (represents sesquiterpene hydrocarbons with higher
boiling point), and patchouli alcohol (represents sesquiterpene
alcohols). The water solubility for each constituent was estimated based
on the appropriate peak areas obtained from measuring water solubility
of Patchouli oil at loading rates of 100mg/L and 1000mg/L. The
alpha-guaiene and alpha-bulnesene concentrations were calculated based
on the test item peak at retention 37.8 and 42.0 minutes respectively.
The hydrocarbon block concentration was calculated based on the total
peak area over the retention range of 33 to 45 minutes. Water solubility
of Patchouli alcohol was calculated by the difference between total
measured water solubility of Patchouli Oil minus the water solubility of
the hydrocarbon block.
solubility was calculated to be 0.2 to 0.77mg/L at loading rates of
100mg/L and 1000mg/L respectively; estimated mean measured value of
0.485 mg/l is used in the CSR.
solubility was calculated to be 0.25 to 0.96mg/L at a loading rate of
100mg/L to 1000mg/L respectively; estimated mean measured value of 0.605
mg/l is used in the CSR.
solubility was calculated to be 14.0mg/l. This value is used in the CSR.
It is the difference between the mean measured water solubility for
Patchouli Oil (16.6mg/l) minus the mean measured water solubility for
the hydrocarbon block (2.6mg/l based on water solubility of 1.16 to
4.03mg/L at loading rates of 100mg/L and 1000mg/L).
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
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