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Physical & Chemical properties

Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: data from experimental reports using standard method of analysis
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The particle size distribution of test test item 2-octadecyl-1H-thioxantheno[2,1,9-def]isoquinoline-1,3(2H)-dione (CAS No. 27870-92-4 ) was determined by granulometric analysis with rotap sieve shaker.
GLP compliance:
not specified
Type of method:
sieving
Type of distribution:
counted distribution
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
No.:
#1
Size:
150 µm
Distribution:
63.14 %
Remarks on result:
other: no additional details available
No.:
#2
Size:
106 µm
Distribution:
15.75 %
Remarks on result:
other: no additional details available
No.:
#3
Size:
75 µm
Distribution:
9.86 %
Remarks on result:
other: no additional details available
No.:
#4
Size:
53 µm
Distribution:
10.2 %
Remarks on result:
other: no additional details available
No.:
#5
Size:
25 µm
Distribution:
1.02 %
Remarks on result:
other: no additional details available

Table 1: Observation Table

Amount of test item weighed (g) =10. g      

Method run time (min) =10 min

Sieve sizes(in microns)

Weight of petridishes +

test item (g)

Test item quantity retained after sieving (g)

Percentage (%) of test item*
 150 microns  47.830 6.204  63.14
 106 microns   49.099 1.548 15.75
75 microns   51.798 0.969 9.86
 53 microns 45.367 1.003  10.20
 25 microns  44.595  0.101  1.02

*Percentage of test item =   Test item retained on each sieve after sieving X 100

                                                   Total amount of test item retained on sieveThe particle size distribution of test test item

Conclusions:
The particle size distribution of test test item Tris[5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonato(2-)]dialuminium was determined to be in the range of 150 micron to 25 micron
Executive summary:

The particle size distribution of test test item Tris[5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7- disulphonato(2-)]dialuminium (CAS No. 68475-50-3 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was found to be in the range of 150 micron to 25 micron.

Description of key information

The particle size distribution of test test item Tris[5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7-disulphonato(2-)]dialuminium (CAS No. 68475-50-3 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron

Additional information

The particle size distribution of test test item Tris[5-amino-4-hydroxy-3-(phenylazo)naphthalene-2,7- disulphonato(2-)]dialuminium (CAS No. 68475-50-3 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25 micron.