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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:
23-07-2018 – 23-07-2018
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Justification for type of information:
Experimental test result performed using standard test guidelines
Reference:
Composition 0
Qualifier:
according to
Guideline:
other: as mention below
Principles of method if other than guideline:
The particle size distribution of test substance 2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[[2-(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8-[[2-sulfo-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt was determined by Granulometric analysis with Rotap sieve shaker
GLP compliance:
no
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 : 2-Naphthalenesulfonic acid, 7-amino-4-hydroxy-3-[[2-methoxy-5-methyl-4-[[2-(sulfooxy)ethyl]sulfonyl] phenyl]azo]-8-[[2-sulfo-4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-, tetrasodium salt
- Molecular formula : C28H25N5Na4O20S6
- Molecular weight : 1035.87 g/mol
- Smiles notation : Cc1cc(N=Nc2c(S(=O)(=O)O{-}.[Na]{+})cc3c(ccc(N)c3N=Nc3ccc(S(=O)(=O)CCOS(=O)(=O)O{-}.[Na]{+})cc3S(=O)(=O)O{-}.[Na]{+})c2O)c(OC)cc1S(=O)(=O)CCOS(=O)(=O)O{-}.[Na]{+}
- Substance type : Organic
- Physical state : Solid
Key result
Percentile:
D50
Remarks on result:
other: Mass median diameter
No.:
#1
Size:
150 µm
Distribution:
86.636 %
Remarks on result:
other: No other detail available
No.:
#2
Size:
106 µm
Distribution:
13.364 %
Remarks on result:
other: No other detail available

OBSERVATION TABLE

Amount of test item weighed (g)=10.010

Method run time(minute)=10min

 Sieve sizes(in

microns)

 Weight of petridishes + test

item(g)

Test item quantity

retained after sieving (g)

 

 Percentage(%)of

test item*

 150 microns

 55.959

 8.402

 86.6364

 106 microns

 46.215

 1.296

 13.3635

75 microns 

 -

 0

 0.0000

Conclusions:
The particle size distribution of test item tetrasodium 7 -amino-4 -hydroxy-3 -[(E)-2 -{2 -methoxy-5 -methyl-4 -[2 -
(sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]-8 -[(E)-2 -{2 -sulfonato-4 -[2 - (sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]naphthalene-2 -sulfonate (CAS No. 503155-49-5 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determine to be in the range of 150 micron to 106 micron.
Executive summary:

The particle size distribution of test item tetrasodium 7 -amino-4 -hydroxy-3 -[(E)-2 -{2 -methoxy-5 -methyl-4 -[2 -

(sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]-8 -[(E)-2 -{2 -sulfonato-4 -[2 - (sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]naphthalene-2 -sulfonate (CAS No. 503155-49-5 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determine to be in the range of 150 micron to 106 micron.

Description of key information

The particle size distribution of test item tetrasodium 7 -amino-4 -hydroxy-3 -[(E)-2 -{2 -methoxy-5 -methyl-4 -[2 -

(sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]-8 -[(E)-2 -{2 -sulfonato-4 -[2 - (sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]naphthalene-2 -sulfonate (CAS No. 503155-49-5 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determine to be in the range of 150 micron to 106 micron.

Additional information

The particle size distribution of test item tetrasodium 7 -amino-4 -hydroxy-3 -[(E)-2 -{2 -methoxy-5 -methyl-4 -[2 -

(sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]-8 -[(E)-2 -{2 -sulfonato-4 -[2 - (sulfonatooxy)ethanesulfonyl]phenyl}diazen-1 -yl]naphthalene-2 -sulfonate (CAS No. 503155-49-5 ) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determine to be in the range of 150 micron to 106 micron.