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Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
12/09/2017 - 23/10/2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2018

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)
Version / remarks:
CIPAC METHOD 59 Sieve analysis
GLP compliance:
yes (incl. QA statement)
Type of method:
sieving
Type of particle tested:
primary particle
Type of distribution:
mass based distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Gallium trichloride
EC Number:
236-610-0
EC Name:
Gallium trichloride
Cas Number:
13450-90-3
Molecular formula:
Cl3Ga
IUPAC Name:
gallium trichloride
impurity 1
Chemical structure
Reference substance name:
Sodium
EC Number:
231-132-9
EC Name:
Sodium
Cas Number:
7440-23-5
Molecular formula:
Na
IUPAC Name:
sodium
impurity 2
Chemical structure
Reference substance name:
Aluminium
EC Number:
231-072-3
EC Name:
Aluminium
Cas Number:
7429-90-5
Molecular formula:
Al
IUPAC Name:
aluminum
impurity 3
Chemical structure
Reference substance name:
Silicon
EC Number:
231-130-8
EC Name:
Silicon
Cas Number:
7440-21-3
Molecular formula:
Si
IUPAC Name:
silicon
impurity 4
Chemical structure
Reference substance name:
Iron
EC Number:
231-096-4
EC Name:
Iron
Cas Number:
7439-89-6
Molecular formula:
Fe
IUPAC Name:
iron
impurity 5
Chemical structure
Reference substance name:
Copper
EC Number:
231-159-6
EC Name:
Copper
Cas Number:
7440-50-8
Molecular formula:
Cu
IUPAC Name:
copper
impurity 6
Reference substance name:
Zinc
EC Number:
231-175-3
EC Name:
Zinc
Cas Number:
7440-66-6
Molecular formula:
Zn
IUPAC Name:
zinc
impurity 7
Chemical structure
Reference substance name:
Germanium
EC Number:
231-164-3
EC Name:
Germanium
Cas Number:
7440-56-4
Molecular formula:
Ge
IUPAC Name:
germanium(4+)
impurity 8
Reference substance name:
Tin
EC Number:
231-141-8
EC Name:
Tin
Cas Number:
7440-31-5
Molecular formula:
Sn
IUPAC Name:
tin
impurity 9
Chemical structure
Reference substance name:
Lead
EC Number:
231-100-4
EC Name:
Lead
Cas Number:
7439-92-1
Molecular formula:
Pb
IUPAC Name:
lead
Test material form:
solid: particulate/powder
Specific details on test material used for the study:
white solid powder

Results and discussion

Particle sizeopen allclose all
Key result
Percentile:
D10
Mean:
ca. 350 µm
Remarks on result:
other: standard deviation not reported
Key result
Percentile:
D50
Mean:
ca. 620 µm
Remarks on result:
other: standard deviation not reported
Key result
Percentile:
D90
Mean:
ca. 1 750 µm
Remarks on result:
other: standard deviation not reported

Applicant's summary and conclusion

Conclusions:
The test item gallium trichloride has a median particle size D50 = 620 µm, which was determined by sieving.
Executive summary:

The objective of this study was the determination of the particle size distribution of the test item gallium trichloride according to CIPAC MT 59 sieve analysis. This is done by using different sized sieves. The powder is separated into fractions with different ranges of particle size. the fractions are weighed and from the different weighed fractions the particle size distribution is calculated.

The test item gallium trichloride has a median particle size D50 = 620 µm, which was determined by sieving.