1,8-Naphthalenediol, 1,8-dibenzoate

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:

other: GLP 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:

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

Principles of method if other than guideline:

Laser diffraction method according to ISO 13320

GLP compliance:

yes (incl. QA statement)

Type of distribution:

volumetric distribution

Test material

Test material information

Constituent 1

Reference substance name:

8-(benzoyloxy)naphthalen-1-yl benzoate

EC Number:

810-797-4

Cas Number:

331711-99-0

Molecular formula:

C24 H16 O4

IUPAC Name:

8-(benzoyloxy)naphthalen-1-yl benzoate

Constituent 2

Reference substance name:

Thane 003-6

IUPAC Name:

Thane 003-6

Test material form:

solid: particulate/powder

Remarks:

migrated information: powder

Details on test material:

Name of test material (as cited in study report): 1,8-Naphthalenediol , 1,8-dibenzoate
Physical state: solid
Analytical purity: 99.0 g / 100 g via 1H-NMR spectroscopy
Lot/batch No.: CHPC021814NDB
Expiration date of the lot/batch: Jul29, 2014
Storage condition of test material: Room temperature, protected from moisture

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:

31 µm

Particle size 3

Percentile:

D50

Mean:

167 µm

Particle size 4

Percentile:

D90

Mean:

521 µm

Particle size 5

Percentile:

other: D[3,2]

Mean:

70 µm

Particle size 6

Percentile:

other: D[4,3]

Mean:

229 µm

Particle size distribution at different passages

Particle size distribution at different passages 1

No.:

#1

Size:

< 4 µm

Distribution:

0.14 other: vol%

Particle size distribution at different passages 2

No.:

#2

Size:

< 10 µm

Distribution:

1.78 other: vol%

Particle size distribution at different passages 3

No.:

#3

Size:

< 100 µm

Distribution:

33.86 other: vol%

Any other information on results incl. tables

Results in detail

measurement	d(0.1) [μm]	d(0.5) [μm]	d(0.9) [μm]	D[3,2] [μm]	D[4,3] [μm]
1	32	164	502	72	222
2	30	169	542	68	237
mean*	31	167	521	70	229

 

measurement	<4 μm [vol%]	<10 μm [vol%]	<100 μm [vol%]
1	0.10	1.59	33.98
2	0.18	1.98	33.73
mean*	0.14	1.78	33.86

 

*) Using all single measuring points from the measurements 1 and 2, a new distribution was calculated, giving the mean values for each parameter.

0[3,2): mean by surface (Sauter)

0[4,3): mean by volume (De Brouker)