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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
Study period:
2008
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
other: ISO 13317-2
GLP compliance:
yes (incl. QA statement)
Type of method:
sedimentation (gravitational settling)
Remarks:
Fixed Pipette Method
Type of distribution:
volumetric distribution
Specific details on test material used for the study:
Batch no. 07103001
Production date 30.10.2007
Expiry date 30.10.2008
No.:
#1
Size:
79.19 µm
Distribution:
> 43.38 %
No.:
#2
Size:
49.25 µm
Distribution:
> 33.09 %
No.:
#3
Size:
34.23 µm
Distribution:
> 10.05 %
No.:
#4
Size:
23.77 µm
Distribution:
> 0 %
No.:
#5
Size:
19.05 µm
Distribution:
0 %
No.:
#6
Size:
16.18 µm
Distribution:
0 %
No.:
#7
Size:
14.18 µm
Distribution:
0 %
No.:
#8
Size:
12.68 µm
Distribution:
0 %
No.:
#9
Size:
11.49 µm
Distribution:
0 %
No.:
#10
Size:
10.5 µm
Distribution:
0 %

The following particle size distribution was found in two experiments

 First Experiment      Second Experiment  
 Stokes diameter in µm

 Cumulated Mass below Stokes diameter in %

  Stokes diameter in µm

 Cumulated Mass below Stokes diameter in %

 79.19

43.38

79.19 

49.15 

 49.25

33.09 

55.09 

46.73 

 34.23

10.05 

38.27 

15.25 

 23.77

0 

33.62 

10.41 
 19.05 0  31.12  5.08 
 16.18 0  27.35  3.15 
 14.18 0  25.02  2.66 
 12.68 0  21.96  0 
 11.49 0  19.61  0 
 10.50 0  17.75  0 
Conclusions:
The measured values show good reproducibility, giving a deviation of less than 20% for the biggest particle size.
The particle size distribution shows no sigle peaks, but a continous distribution starting at approximately 20 µm, leaving fractions of less than 5% below 30 µm and more than 50% above 80 µm. No partcles smaller than 10 µm werde detected, therfore, it can be assumed that the inhalative toxicity doesn't have to be tested. In the second main study, more sampling times below 600 seconds were chosen in order to chieve more information about the exact distribution.
The result of the test can be considered valid.
Executive summary:

The particle size distribution of Iodobis(triphenylphosphino)copper (H3301) was determined by sedimentation following ISO 13317 -2 - Fixed Pipette method.

The determination was performed in duplicate, using a saturated solution in H2O as suspending medium.

Description of key information

The particle size distribution shows no sigle peaks, but a continous distribution starting at approximately 20 µm, leaving fractions of less than 5% below 30 µm and more than 50% above 80 µm. No particles smaller than 10 µm are detected.

Additional information