Sulfonic acids, C16-alkane hydroxy and C16-alkene, sodium salts

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

supporting study

Study period:

Experimental Starting Date: 21 November 2014 Experimental Completion Date: 15 April 2015

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2015

Report date:

2015

Materials and methods

Test guideline

Qualifier:

equivalent or similar to guideline

Guideline:

other: Determination using a procedure designed to be compatible with that given in European Commission Guidance Document EUR 20268 ‘Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances’, 2002.

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Type of method:

sieving

Type of distribution:

mass based distribution

Test material

Test material information

Constituent 1

Reference substance name:

Sulfonic acids, C16-18-alkane hydroxy and C16-18-alkene, sodium salts

EC Number:

294-430-8

EC Name:

Sulfonic acids, C16-18-alkane hydroxy and C16-18-alkene, sodium salts

Cas Number:

91722-28-0

IUPAC Name:

Sulfonic acids, C16-18-alkane hydroxy and C16-18-alkene, sodium salts

Test material form:

other: pale yellow solid

Remarks:

This solid sample was obtained from the original liquid form by removing water.

Details on test material:

Identification: Internal Olefin Sulfonate (IOS)
Appearance/physical state: pale yellow solid
Expiry date: 01 December 2016
Storage conditions: approximately 4 °C, in the dark

Results and discussion

Particle size

Key result

Percentile:

other: The percentage of test item having an inhalable particle size of less than 100 μm was determined to be 2.1%. The test item has been considered to be essentially non-inhalable.

Particle size distribution at different passages

No.:

#1

Size:

< 100 µm

Distribution:

2.1 other: %

Any other information on results incl. tables

Results

Sieve Screening Test

The results of the sieving procedure are shown in the following table:

 

Table 3.38

 

Measurement	Result
Mass of test item transferred to sieve	17.60 g
Mass of test item passed through sieve	0.37 g
Percentage of test item less than 100 µm	2.1 %

 

Applicant's summary and conclusion

Conclusions:

The percentage of test item having an inhalable particle size of less than 100 µm was determined to be 2.1%. The test item has been considered to be essentially non-inhalable.

Executive summary:

The determination was carried out using a procedure designed to be compatible with that given in European Commission Guidance Document EUR 20268 ‘Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances’, 2002.

Conclusion

The percentage of test item having an inhalable particle size of less than 100 µm was determined to be 2.1%. The test item has been considered to be essentially non-inhalable.