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Density

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Reference
Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Deviations:
no
Qualifier:
according to guideline
Guideline:
EU Method A.3 (Relative Density)
Deviations:
no
GLP compliance:
no
Type of method:
pycnometer method
Specific details on test material used for the study:
Name sodium 3-sulfobenzoate
Batch no. 170103
CAS No. 17625-03-5
Purity > 99.0% (Titration with NaOH, Glass indicating electrode, Calomel reference electrode)
Expiry date 14. Feb. 2019
Storage Room Temperature (20 ± 5°C), keep away from humidity
Type:
relative density
Density:
1.792 other: dimensionless, since it is a relative density
Temp.:
20 °C

Results of the single determinations with the respective error as well as the mean value and its standard deviation are presented in the following tables:

Table 1. Results of Single Determinations

 Determination Density in g/cm3   Error of Determ. in g/cm3
 1  1.7917 0.0007 
1.7914  0.0007 

Table 2. Results - Mean Values

 Parameter Value  Unit  Standard Deviation  Relative Standard Deviation 
 Volume of Pycnometer  24.91 cm3   0.0004 0.00 % 
 Density of Test Substance  1.7915 g/cm3  0.0003 0.01 % 
 Density of Test Substance  1791.5 kg/m3   0.3 0.01 %
 Relative Density of Test Substance  1.7915 0.0003  0.01 % 
Conclusions:
Density of sodium hydrogen m-sulphonatobenzoate has been determined using the pycnometer method. As a result, the density of the test item was 1.7915 ± 0.0007 g/cm3 at 20 ± 0.2 °C. This value is the mean of two independent determinations with the maximum error of a single determination. Standard deviation was 0.0003 g/cm3, showing very good correlation of the two determinations.
Executive summary:

The density of sodium 3-sulfobenzoate has been determined using the pycnometer method, according to OECD 109 and EU A.3. The measured density was 1.7915± 0.0007 g/cm3 at 20 ± 0.2 °C.

Description of key information

Density of sodium 3-sulfobenzoate has been determined using the pycnometer method, according to OECD 109 and EU A.3. The measured density was 1.7915± 0.0007 g/cm3 at 20 ± 0.2 °C.

Key value for chemical safety assessment

Relative density at 20C:
1.792

Additional information