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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
other: expert statement
Adequacy of study:
weight of evidence
Reliability:
1 (reliable without restriction)

Data source

Reference
Reference Type:
other: expert statement
Title:
Unnamed
Year:
2015
Report date:
2015

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
other: Guidance Document on the Determination of Particle Size Distribution, Fibre Length and Diameter Distribution of Chemical Substances, EUR 20268 EN (2002)
Qualifier:
according to guideline
Guideline:
other: Standard ISO 13320: 2009 Particle size analysis – Laser diffraction methods, First edition 2009-10-01
Qualifier:
according to guideline
Guideline:
other: Standard ISO 2591-1 Test sieving - Part 1: Methods using test sieves of woven wire cloth and perforated metal plate
GLP compliance:
no
Type of distribution:
other: observation and measurement

Test material

Constituent 1
Reference substance name:
Acetic acid, 2-nitrophenyl ester
IUPAC Name:
Acetic acid, 2-nitrophenyl ester
Constituent 2
Chemical structure
Reference substance name:
2-nitrophenyl acetate
EC Number:
210-233-1
EC Name:
2-nitrophenyl acetate
Cas Number:
610-69-5
Molecular formula:
C8H7NO4
IUPAC Name:
2-nitrophenyl acetate
Test material form:
solid: crystalline
Details on test material:
Name of test material (as cited in study report): 2-Nitrophenyl Acetate

- Physical state: solid light yellow crystalline, covered with liquid
- Analytical purity: 95 % w/w

- Impurities (identity and concentrations):
Phenol <5.0 % (w/w)
2,4-dinitrophenol <5.0 % (w/w)
2,6-dinitrophenol <5.0 % (w/w)
Acetic acid <1.0 % (w/w)
Water <5.0 % (w/w)
2-nitrophenol <5.0 % (w/w)

- Lot/batch No.: 201408
- Expiration date of the lot/batch: unlisted

- Storage condition of test material: The test substance will be stored in dry room in dark in
closed container at the room temperature

Results and discussion

Particle size
Percentile:
D50
Remarks on result:
other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.

Any other information on results incl. tables

On the bases of this measurement the test substance contains the crystals from 4 cm to 2 mm.

Applicant's summary and conclusion

Conclusions:
On the bases of this information the study was not performed and the Expert Statement is issued instead.
The test substance, 2-Nitrophenyl Acetate, contains particle in the range from 4 cm to 2 mm.