Gallium trichloride

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

Test material information

Constituent 1

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

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

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

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

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

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

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

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 size

Particle size 1

Key result

Percentile:

D10

Mean:

ca. 350 µm

Remarks on result:

other: standard deviation not reported

Particle size 2

Key result

Percentile:

D50

Mean:

ca. 620 µm

Remarks on result:

other: standard deviation not reported

Particle size 3

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.