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Physical & Chemical properties

Particle size distribution (Granulometry)

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Administrative data

Link to relevant study record(s)

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 is from experimental reports
Qualifier:
according to guideline
Guideline:
other: as mentioned below
Principles of method if other than guideline:
The particle size distribution of C.I Direct Blue 218 (CAS no. 28407-37-6) 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
Specific details on test material used for the study:
Name of the test chemical: Tetrasodium [μ-[[3,3'-[(3,3'-dihydroxy[1,1'-biphenyl]-4,4'-diyl)bis(azo)]bis[5-amino-4-hydroxynaphthalene-2,7-disulphonato]](8-)]]dicuprate(4-)
Common Name: C.I Direct Blue 218
IUPAC name: tetrasodium (3E)-5-amino-3-{2-[4-(4-{2-[(2E)-8-amino-1-oxo-3,6-disulfonato-1,2-dihydronaphthalen-2-ylidene]hydrazin-1-yl}-3- hydroxyphenyl)-2-hydroxyphenyl]hydrazin-1-ylidene}-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate dicopper
Molecular Formula: C32H20Cu2N6Na4O16S4
Molecular Weight: 1087.84 g/mol
SMILES Notation: c12c3c(c(S(=O)(=O)[O-])cc1cc(S(=O)(=O)[O])cc2N)N=Nc1ccc(cc1O[Cu]O3)c1cc2c(N=Nc3c(cc4c(c3O[Cu]O2)c(cc(c4)S(=O) (=O)[O-])N)S(=O)(=O)[O-])cc1.[Na+].[Na+].[Na+].[Na+]
InChI: 1S/C32H24N6O16S4.2Cu.4Na/c33-19-11-17(55(43,44)45)5-15-9-25(57(49,50)51)29(31(41)27(15)19)37-35-21-3-1-13(7-23(21)39) 14-2-4-22(24(40)8-14)36-38-30-26(58(52,53)54)10-16-6-18(56(46,47)48)12-20(34)28(16)32(30)42;;;;;;/h1-12,39-42H,33-34H2,(H,43,44,45)(H,46,47,48)(H,49,50,51)(H,52,53,54);;;;;;/q;2*+2;4*+1/p-8/b37-35-,38-36-;;;;;;
Substance Type: Organic
Physical State: Solid Deep purple to dark blue amorphous powder
Key result
Percentile:
D50
Remarks on result:
other: mass median diameter
No.:
#1
Size:
147 µm
Distribution:
12.11 %
Remarks on result:
other: no other details mentioned
No.:
#2
Size:
105 µm
Distribution:
46.46 %
Remarks on result:
other: no other details mentioned
No.:
#3
Size:
73 µm
Distribution:
20.32 %
Remarks on result:
other: no other details mentioned
No.:
#4
Size:
52 µm
Distribution:
16.44 %
Remarks on result:
other: no other details mentioned
Conclusions:
The particle size distribution of C.I Direct Blue 218 (CAS no. 28407-37-6) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 147 micron to 52 micron.
Executive summary:

The particle size distribution of C.I Direct Blue 218 (CAS no. 28407-37-6) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 147 micron to 52 micron.

Description of key information

The particle size distribution of C.I Direct Blue 218 (CAS no. 28407-37-6) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 147 micron to 52 micron.

Additional information

The particle size distribution of C.I Direct Blue 218 (CAS no. 28407-37-6) was determined by granulometric analysis with rotap sieve shaker. The particle size distribution was determined to be in the range of 147 micron to 52 micron.