Registration Dossier

Administrative data

Endpoint:
relative density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
April - November 2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2018
Report Date:
2018

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to
Guideline:
EU Method A.3 (Relative Density)
Qualifier:
according to
Guideline:
OECD Guideline 109 (Density of Liquids and Solids)
Version / remarks:
2012
GLP compliance:
yes (incl. certificate)
Type of method:
pycnometer method

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid
Specific details on test material used for the study:
Batch number: 80100005
Expiration date: 13 October 2018
Purity: 99.8%
Stored at Room temperature (nominally 15 to 25C), dark
Physical state/appearance: White solid

Results and discussion

Density
Key result
Type:
relative density
Density:
0.993 other: relative compared to water at 4C
Temp.:
20 °C

Any other information on results incl. tables

Table 1. Results of duplicate determinations of relative density of WS-23

 Parameter  Determination 1  Determination 2
 w1  19.07928  18.58380
 w2  44.82532  43.64085
 w3  44.82415  43.63167
 w4  20.07966  19.58205
 w5  44.81840  43.62686
     
 W1 25.74604   25.05705
 W2 25.74487  25.04787
 W3 1.00038    0.99825
 W4  24.73874  24.04481
 W5  1.00613  1.00306
     
 (T p 1)  0.99795  0.99763
     
 mean (T p 1) 0.99779
     
 Vs  1.00835  1.00528
     
 (20 D 4)  0.992  0.993
     
 mean (20 D 4) 0.993

 

Applicant's summary and conclusion

Conclusions:
The relative density of WS-23 at 20°C compared to water at 4°C was found to be 0.993.
Executive summary:

The relative density of WS-23 was determined relative to purified water using a pyknometer at 20°C. The relative density of WS-23 at 20°C compared to water at 4°C was found to be 0.993.