2,2'-[[3-chloro-4-[[4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]phenyl]imino]bisethyl bis(hydrogen sulphate), potassium sodium salt

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2017-02-14 to 2017-06-06

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2018

Report date:

2018

Materials and methods

Test guideline

Qualifier:

according to guideline

Guideline:

other: CIPAC Handbook Volume K: Analysis of Technical and Formulated Pesticides, CIPAC MT 187

Version / remarks:

2003

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

Laser scattering/diffraction

Type of particle tested:

primary particle

Type of distribution:

other: particle volume or particle mass

Test material

Test material information

Constituent 1

Reference substance name:

2,2'-[[3-chloro-4-[[4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]phenyl]imino]bisethyl bis(hydrogen sulphate), potassium sodium salt

EC Number:

287-719-5

EC Name:

2,2'-[[3-chloro-4-[[4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]phenyl]imino]bisethyl bis(hydrogen sulphate), potassium sodium salt

Cas Number:

85567-07-3

Molecular formula:

C36H42Cl2KN6NaO28S8

IUPAC Name:

2,2'-[[3-chloro-4-[[4-[[2-(sulphooxy)ethyl]sulphonyl]phenyl]azo]phenyl]imino]bisethyl bis(hydrogen sulphate), potassium sodium salt

Test material form:

solid

Details on test material:

Batch: 1283067001

Results and discussion

Particle size

Particle size 1

Key result

Percentile:

D50

Mean:

35.39 µm

St. dev.:

1.43

Remarks on result:

other:

Remarks:

Mean of two measurements

Particle size 2

Percentile:

D10

Mean:

9.49 µm

St. dev.:

0.73

Remarks on result:

other:

Remarks:

Mean of two measurements

Particle size 3

Percentile:

D90

Mean:

105.44 µm

St. dev.:

3.05

Remarks on result:

other:

Remarks:

Mean of two measurements

Any other information on results incl. tables

Particle Size Distribution:

	Measurement 1 [µm]	Measurement 2 [µm]	Average [µm]
L10D(v, 0.1)	8.969	10.008	9.49
L50D(v, 0.5)	34.379	36.402	35.39
L90D(v, 0.9)	103.284	107.600	105.44

Applicant's summary and conclusion

Conclusions:

The L10 D (v, 0.1) was determined to be 9.49 µm, the L50 D (v, 0.5) was determined to be 35.39 µm and the L90 D (v, 0.9) was determined to be 105.44 µm.

Executive summary:

The particle size distribution was determined using the laser diffraction method with dry dispersion. The particle size distribution of test item was determined following CIPAC MT 187. The dispersing energy was adjusted to 3.0 bar.

Two measurements have been performed. The following results were obtained. The L₁₀D (v, 0.1) was determined to be 9.49 µm, the L₅₀D (v, 0.5) was determined to be 35.39 µm and the L₉₀D (v, 0.9) was determined to be 105.44 µm.