Coriander, ext.

Water solubility

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

water solubility

Type of information:

not specified

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

data from handbook or collection of data

Justification for type of information:

Data comes from an online compilation using secondary data sources. There is no experimental study reference, however data is cited in the database as peer reviewed, and recommended in ECHA Guidance on information requirements. Therefore it is considered as reliable, but with restrictions due to lack of details.

Reason / purpose for cross-reference:

reference to other study

Principles of method if other than guideline:

No data

Specific details on test material used for the study:

no data

Water solubility:

1 590 mg/L

Temp.:

25 °C

Remarks on result:

other: pH not reported

Remarks:

experimental data

Conclusions:

Interpretation of results: soluble (1000-10000 mg/L)

Executive summary:

The HSDB database provides, as secondary source, some physico-chemical properties. A water solubility of 1590 mg/L at 25°C is reported for linalool (no data on purity, nor method, nor pH).

Reference 2

Endpoint:

water solubility

Type of information:

experimental study

Adequacy of study:

weight of evidence

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Justification for type of information:

The study is not designed for water solubility measurement, but for aquatic toxicity; however preparation of saturated stock solution is adequately described, with some deviations from the guideline. Test substance purity is specified. Therefore reliability applies, with restrictions.

Qualifier:

equivalent or similar to guideline

Guideline:

OECD Guideline 105 (Water Solubility)

Deviations:

yes

Remarks:

water quality; excess amount; check for equilibrium

GLP compliance:

no

Type of method:

flask method

Water solubility:

1.97 mg/L

Temp.:

20.2 °C

pH:

7.8

Remarks on result:

other: hardness = 45.4 mg/L CaCO3; alkalinity = 42.9 mg/L CaCO3

The test substance was found to hydrolyze, with a minimum purity of 80% in exposure water.

Conclusions:

Interpretation of results (migrated information): slightly soluble (0.1-100 mg/L)

Executive summary:

For the preparation of aquatic toxicity test media, sterilised natural water was saturated with the test substance, following a procedure similar to the flask method. The maximum measured concentration was 1.97 mg/L. However note that the test substance is likely to volatilise and degrade in actual conditions.

Description of key information

Major components of the substance (more than 74% of the composition) ranging between 1.97and 1590 mg/L at ambient temperature (literature data).

Additional information

No study was conducted on the oil itself.

The test item is a natural complex substance (NCS). It is a UVCB with constituents of different solubility. Therefore the global solubility of the oil will depend on the loading rate (with varying ratio of constituents in the dissolved phase).

Even if the substance is a mixture of several constituents, two of them represent more than 74% of that mixture. Therefore a Weight of Evidence approach was considered and the water solubility of the major constituents of the substance was gathered (literature data).

Literature provided data for two major constituents of the substance:

- linalool WS ca 1590 mg/L at 25°C.

- pinene alpha WS ca 1.97mg/L at 24°C.

As no CSA is required for the tonnage band of concern, no key value was retained (nor calculated weighted WS nor worst-case).