Registration Dossier

Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1994

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The test sample was dispersed in Euparal on a microscope slide and examined by light microscopy. Photomicrographs were obtained and the image was scanned using Improvisation Image Analysis software.
GLP compliance:
yes
Type of distribution:
counted distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
2,2'-dithiodi(benzoic acid)
EC Number:
204-352-8
EC Name:
2,2'-dithiodi(benzoic acid)
Cas Number:
119-80-2
Molecular formula:
C14H10O4S2
IUPAC Name:
2-[(2-carboxyphenyl)disulfanyl]benzoic acid
Test material form:
other: Solid
Details on test material:
The test material had a purity of 75.3%

Results and discussion

Particle size
Percentile:
D50
Mean:
1.47 µm
Remarks on result:
other: The particles had a spread of sizes up to 18 µm(migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.)

Any other information on results incl. tables

No other information on the particle size distribution is provided in the report.

Applicant's summary and conclusion

Conclusions:
The mean equivalent diameter of the DTBA particles is 1.47 µm.