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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:
test procedure in accordance with generally accepted scientific standards and described in sufficient detail
Justification for type of information:
data from experimental reports using standard method of analysis
Qualifier:
according to guideline
Guideline:
other: refer below
Principles of method if other than guideline:
The particle size distribution of test test item 1-phenylazo-2-naphthol (CAS No. 842-07-9 ) was determined by granulometric analysis with rotap sieve shaker.
GLP compliance:
not specified
Type of method:
sieving
Type of distribution:
counted distribution
Specific details on test material used for the study:
Name of test material (as cited in study report): C.I Solvent Yellow 14
Molecular formula: C16H12N2O
Molecular weight: 248.284 g/mol
Smiles notation: c12c(\N=N\c3ccccc3)c(ccc1cccc2)O
InChI: 1S/C16H12N2O/c1915111012645914(12)16(15)1817137213813/h111,19H/b1817+
Physical State: Solid
Substance type: Organic
Percentile:
D50
Mean:
25 - 150 µm
Remarks on result:
other: other details not available
No.:
#1
Size:
150 µm
Distribution:
39.4 %
Remarks on result:
other: no other details mentioned
No.:
#2
Size:
106 µm
Distribution:
12.18 %
Remarks on result:
other: no other details mentioned
No.:
#3
Size:
75 µm
Distribution:
15.23 %
Remarks on result:
other: no other details mentioned
No.:
#4
Size:
53 µm
Distribution:
29.22 %
Remarks on result:
other: no other details mentioned
No.:
#5
Size:
25 µm
Distribution:
3.95 %
Remarks on result:
other: no other details mentioned

Table 1: Observation Table

Amount of test item weighed (g) =10.002 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  51.521 3.911  39.40
 106 microns   45.756 1.209  12.18
75 microns   38.831 1.1512  15.23
 53 microns 47.413 2.901   29.22
 25 microns  44.312 0.393 3.95

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

                                                   Total amount of test item retained on sieve

Conclusions:
The particle size distribution of test test item 1-phenylazo-2-naphthol (CAS No. 842-07-9 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 150 micron to 25micron.
Executive summary:

The particle size distribution of test test item 1-phenylazo-2-naphthol (CAS No. 842-07-9 ) 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.

Description of key information

The particle size distribution of test test item 1-phenylazo-2-naphthol (CAS No. 842-07-9 ) was determined by granulometric analysis with rotap sieve shaker. Theparticle size distribution was determined to be in the range of 150 micron to 25micron.

Additional information

The particle size distribution of test test item 1-phenylazo-2-naphthol (CAS No. 842-07-9 ) was determined by granulometric analysis with rotap sieve shaker. Theparticle sizedistribution was determined to be in the range of 150 micron to 25 micron.