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Physical & Chemical properties

Appearance / physical state / colour

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Reference
Endpoint:
appearance / physical state / colour
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012-06-03 to 2012-07-05
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Company data, no study explicitly performed but included in study reports to describe the test item.
Qualifier:
no guideline required
Principles of method if other than guideline:
Visual and olfactoric inspection of the test item
GLP compliance:
not specified
Physical state at 20°C and 1013 hPa:
liquid
Remarks:
aqueous solution
Form:
other: aqueous solution
Colour:
colourless
Odour:
other: nearly odorless
Substance type:
organic
Conclusions:
The data source was classified as Klimisch 2, the description can be considered to be reliable and available data is sufficient to describe the test item.
Executive summary:

The test item is a colourless and nearly odourless aqueous solution, which is liquid at 20°C and 1013 mbar.

Description of key information

Choline chloride as an aqueous solution is a colourless and nearly odourless liquid.

Key value for chemical safety assessment

Physical state at 20°C and 1013 hPa:
liquid

Additional information

The study and hence the results are considered as reliable with restrictions. The substance is normally distributed as an aqueous solution and hence it is characterized as such. So, since Choline chloride as an aqueous solution is a colourless and nearly odourless liquid (Taminco, 2013), risk assessment should be performed with the substance in this form. This will have i.a. impact on the risk arising from inhalation, since no inhalable dust is formed, or on the necessity to perform the testing for viscosity instead of particle size distribution (see related IUCLID chapters).