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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:
18-08-2017 – 18-08-2017
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
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The particle size distribution of 1-[(2, 4-dimethylphenyl) diazenyl]-2-naphthol was determined by granulometric analysis with rotap sieve shaker.
GLP compliance:
not specified
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
counted distribution
Test material information:
Composition 1
Specific details on test material used for the study:
- Name of test material : 1-[(2, 4-dimethylphenyl) diazenyl]-2-naphthol
- Molecular formula : C18H16N2O
- Molecular weight : 276.337 g/mol
- Smiles notation : Cc1ccc(N=Nc2c(O)ccc3ccccc23)c(C)c1
- InChl : JBTHDAVBDKKSRW-FMQUCBEESA-N
- Substance type: Organic
- Physical state: Solid
Key result
Percentile:
D50
Remarks on result:
other: mass median diameter
No.:
#1
Size:
150 µm
Distribution:
44.148 %
Remarks on result:
other: no other details mentioned
No.:
#2
Size:
106 µm
Distribution:
28.466 %
Remarks on result:
other: no other details mentioned
No.:
#3
Size:
75 µm
Distribution:
14.243 %
Remarks on result:
other: no other details mentioned
No.:
#4
Size:
53 µm
Distribution:
7.892 %
Remarks on result:
other: no other details mentioned
No.:
#5
Size:
25 µm
Distribution:
5.251 %

OBSERVATION TABLE

Amount of test item weighed (g)=10.010 g

Method run time(minute)=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

48.774

4.296

44.1475

106 microns

50.306

2.77

28.4657

75 microns

45.988

1.386

14.2431

53 microns

42.372

0.768

7.8923

25 microns

54.430

0.511

5.2512

10 microns

-

0

0.0000

Bottom Pan

-

0

0.0000

*Percentage of test item=test item retained after sievingX 100

                                total test item retained after sieving

 

Sieve sizes(in microns)

Percentage(%)of test item*

150 microns

44.1475

106 microns

28.4657

75 microns

14.2431

53 microns

7.8923

25 microns

5.2512

10 microns

0.0000

Bottom Pan

0.0000

Conclusions:
The particle size distribution of test item 1-(2,4-dimethylphenylazo)-2-naphthol (CAS No. 3118-97-6 ) 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.
Executive summary:

The particle size distribution of test item 1-(2,4-dimethylphenylazo)-2-naphthol (CAS No. 3118-97-6 ) 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 item 1-(2,4-dimethylphenylazo)-2-naphthol (CAS No. 3118-97-6 ) 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.

Additional information

The particle size distribution of test item 1-(2,4-dimethylphenylazo)-2-naphthol (CAS No. 3118-97-6 ) 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.