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Density

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Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
comparable to guideline study with acceptable restrictions
Justification for type of information:
Performed on the liquid product as supplied
No possible to completely isolate from water and material products from attempts to dry were a sticky wax solid soluble in water and organic solvents making the evaluation of density considered to be impossible.
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Principles of method if other than guideline:
Three separate batches were evaluated.
The liquid was poured into volumetric containers and weighed.
GLP compliance:
no
Type of method:
pycnometer method
Remarks:
Equivalent to pycnometer
Key result
Type:
relative density
Density:
ca. 1.06 g/L
Temp.:
25 °C
Conclusions:
Density of the liquid supplied was measured to be just greater than 1
Measured at 25 C, but not considered to make a major impact on the results.
Endpoint:
density, other
Remarks:
Density
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
GLP compliance:
no
Type of method:
pycnometer method
Specific details on test material used for the study:
The sample was dried for approximately 48 hours under at 110°C prior to analysis.
Chemical Name Cetyl Betaine. Other Name 1-Hexadecanaminium, N-(carboxymethyl)-N,N-dimethyl-, inner salt
Commercial Name DeTaine PB
Physical State Liquid (dried for analysis)
CAS # 693-33-4
EC # 211-748-4
Manufacturer Colonial Chemical, Inc.
Batch #/Lot # 58541H1
Received on January 2, 2018
Tested on January 18, 2018
Key result
Type:
density
Density:
1.131 g/cm³
Remarks on result:
other: temperature of measurement not specified for this method

The sample density of the cetyl betaine sample was measured to be 1.1308 g/cm3 with a standard deviation of 0.0001 g/cm3 from five (5) sequential measurements

Conclusions:
The sample density of the cetyl betaine sample was measured to be 1.1308 g/cm3 with a standard deviation of 0.0001 g/cm3 from five (5) sequential measurements

Description of key information

The sample density of a dried sample of cetyl betaine was measured to be 1.1308 g/cm3 with a standard deviation of 0.0001 g/cm3 from five (5) sequential measurements.

The density of the 40% solution as marketed is 1.06 g/cm3

Key value for chemical safety assessment

Relative density at 20C:
1.131

Additional information