Tris(4-chlorophenyl)sulfonium 5-benzoyl-4-hydroxy- 2-methoxybenzenesulfonate

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

17 Mar 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

other: Guideline study with GLP

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2015

Report date:

2015

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)

Test guideline 2

Qualifier:

according to guideline

Guideline:

other: CIPAC, Physico-chemical Methods for Technical nd Formulated Pesticides, MT 187 Particle size analysis by laser diffraction

GLP compliance:

yes (incl. QA statement)

Remarks:

Ministry of Health, D.G. for health prevention office VI, Firmato digitalmente da Franesco De Biasio.

Type of distribution:

volumetric distribution

Test material

Reference

Name:

Unnamed

Type:

Constituent

Test material form:

solid: particulate/powder

Remarks:

migrated information: powder

Details on test material:

- Name of test material (as cited in study report): Sulfonium, tris(4-chlorophenyl)-, salt with 5-benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid (1:1)
- Lot/batch No.:14-121
- Expiration date of the batch:01.06.2016
- Storage condition of test material: at room temperature protected from light

Results and discussion

Particle size

Particle size 1

Percentile:

D50

Remarks on result:

other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.

Particle size 2

Percentile:

D10

Mean:

117 µm

Particle size 3

Percentile:

D50

Mean:

241 µm

Particle size 4

Percentile:

D90

Mean:

400 µm

Any other information on results incl. tables

Results

The interpolated results are expressed as percent of the total results under that size; this value is known as percentile.

The results in Table 1 show the maximum size (in µm) for 10% (Dv 10), 50% (Dv 50), 90% (Dv 90) of the particles, the percentage with a volume under 50 µm and a volume above 75 µm.

The 50% volume percentile is also known as the media of the volume distribution (in bold).

 

Sulfonium, tris(4-chlorophenyl)-, salt with 5-benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid (1:1): particle size distribution by laser diffraction

Test no.	Dv 10 (µm)	Dv 50 (µm)	Dv 90 (µm)	% volume under 50 µm	% volume under 75 µm
1	117	241	400	2.12	95.57
2	118	240	398	2.03	95.67
3	117	240	401	2.03	95.63
Average	117	241	400	2.06	95.6

 

Conclusions

From the experimental obtained data according to CIPAC method MT 187 and OECD guideline No. 110, it can be concluded that the particle size distribution of the test item Sulfonium, tris(4-chlorophenyl)-, salt with 5-benzoyl-4-hydroxy-2-methoxybenzenesulfonic acid (1:1) is as follows: 2.06% of the test item presents a particle size lower than 50 µm, 95.6 % of the test item presents a particle size above 75 µm and the media of the volume distribution is 241 µm.