Barium selenate

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

31 Aug 2017 - 1st Sept 2017

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

study well documented, meets generally accepted scientific principles, acceptable for assessment

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2017

Report date:

2017

Materials and methods

Test guideline

Test guideline 1

Qualifier:

equivalent or similar to guideline

Guideline:

ISO 13320 (Particle size analysis - Laser diffraction methods)

Deviations:

not specified

Test guideline 2

Qualifier:

equivalent or similar to guideline

Guideline:

EPA OPPTS 830.7520 (Particle Size, Fiber Length, and Diameter Distribution)

Deviations:

not specified

GLP compliance:

no

Type of method:

Laser scattering/diffraction

Type of particle tested:

primary particle

Type of distribution:

volumetric distribution

Test material

Test material information

Constituent 1

Reference substance name:

Barium selenate

EC Number:

232-113-8

EC Name:

Barium selenate

Cas Number:

7787-41-9

Molecular formula:

Ba.H2O4Se

IUPAC Name:

barium selenate

Test material form:

solid: crystalline

Results and discussion

Particle size

Particle size 1

Key result

Percentile:

D10

Mean:

ca. 0.77 µm

St. dev.:

0.029

Particle size 2

Key result

Percentile:

D50

Mean:

ca. 2.27 µm

St. dev.:

0.139

Particle size 3

Key result

Percentile:

D90

Mean:

ca. 7 µm

St. dev.:

0.41

Particle size 4

Percentile:

D99

Mean:

ca. 18.59 µm

St. dev.:

1.037