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Particle size distribution (Granulometry)

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Reference
Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
31-01-2017 – 31-01-2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Justification for type of information:
Experimental test result performed using standard test guidelines
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The particle size distribution of test test item 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one (CAS No. 509-34-2 ) was determined by granulometric analysis with rotap sieve shaker.
GLP compliance:
no
Type of method:
sieving
Type of distribution:
counted distribution
Specific details on test material used for the study:
- Name of the test material: 3',6'-bis(diethylamino)-3H-spiro[2-benzofuran-1,9'-xanthen]-3-one (Solvent Red 49)
- Molecular formula: C28H30N2O3
- Molecular weight: 442.556 g/mol
- Substance type: Organic
- Smiles: C12(c3c(Oc4c1ccc(c4)N(CC)CC)cc(N(CC)CC)cc3)c1c(cccc1)C(O2)=O
Key result
Percentile:
D50
Remarks on result:
other: Mass median diameter
No.:
#1
Size:
150 µm
Distribution:
33.15 %
Remarks on result:
other: No additional information available
No.:
#2
Size:
106 µm
Distribution:
64.64 %
Remarks on result:
other: No additional information available
No.:
#3
Size:
75 µm
Distribution:
1.21 %
Remarks on result:
other: no additional information available
No.:
#4
Size:
53 µm
Distribution:
0.98 %
Remarks on result:
other: No additional information available

Observation Table:

Amount of test item weighed (g) =10.001 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

 49.869

3.234

33.15

 106 microns

53.908

6.306

64.64

 75 microns  44.503  0.119  1.21
 53 microns  53.917  0.096  0.98

 

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

                                                   Original test itemtaken

 

Conclusions:
The particle size distribution of test test item 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'- [9H]xanthene]-3-one (CAS No. 509-34-2 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 53 micron.
Executive summary:

The particle size distribution of test test item 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one (CAS No. 509-34-2 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 53 micron.

Description of key information

The particle size distribution of test item 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one (CAS No. 509-34-2 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 53 micron.

Additional information

The particle size distribution of test test item 3',6'-bis(diethylamino)spiro[isobenzofuran-1(3H),9'-[9H]xanthene]-3-one (CAS No. 509-34-2 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 53 micron.