Benzyltris(dimethylaminato)phosphorus(1+) tetrafluoroborate(1-)

Particle size distribution (Granulometry)

Administrative data

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

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2015

Report date:

2015

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

ISO 13320 (Particle size analysis - Laser diffraction methods)

GLP compliance:

no

Other quality assurance:

other: The study was made under non GLP-conditions in a laboratory that is capable for working under GLP. The documentation is sufficient for registration purpose.

Type of method:

Laser scattering/diffraction

Type of distribution:

volumetric distribution

Test material

Test material information

Constituent 1

Reference substance name:

Benzyltris(dimethylaminato)phosphorus(1+) tetrafluoroborate(1-)

EC Number:

302-080-5

EC Name:

Benzyltris(dimethylaminato)phosphorus(1+) tetrafluoroborate(1-)

Cas Number:

94088-77-4

Molecular formula:

C13H25BF4N3P

IUPAC Name:

benzyltris(dimethylamino)phosphanium; tetrafluoroboranuide

Test material form:

solid: crystalline

Details on test material:

Tris(dimethylamino)benzylphosphonium-tetrafluoroborate
Sample No.: 15-00714
< 0.2 % Moisture

Results and discussion

Particle size

Particle size 1

Key result

Percentile:

D50

Mean:

35 µm

Remarks on result:

other: St.dev.: No data

Particle size 2

Key result

Percentile:

D10

Mean:

6 µm

Remarks on result:

other: St.dev.: No data

Particle size 3

Key result

Percentile:

D90

Mean:

78 µm

Remarks on result:

other: St.dev.: No data

Particle size 4

Percentile:

other: Volume weighted mean

Mean:

39 µm

Remarks on result:

other: St.dev.: No data

Any other information on results incl. tables

The sample was not sieved (no fraction with > 1000 µm). The sample showed a bimodal particle size distribution with a mean particle size D50 = 35 µm. A smaller peak was found at ca. 1 µm and the main peak at 50 µm.

Applicant's summary and conclusion

Conclusions:

The substance as manufactured contains a small alveolar fraction (< 10 %) with diameters between 1 and 10 µm.
This has to be taken into account for a risk assessment. Nevertheless, the substance does not fulfill the definition
of a nanomaterial.