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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods with acceptable restrictions
Remarks:
Standard procedure of testing institute, similar to ISO 13320

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2011
Report date:
2011

Materials and methods

Test guideline
Qualifier:
equivalent or similar to guideline
Guideline:
other: ISO 13320
Principles of method if other than guideline:
Laser diffraction particle sizing.
Type of method:
Laser scattering/diffraction
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Barbituric acid
EC Number:
200-658-0
EC Name:
Barbituric acid
Cas Number:
67-52-7
Molecular formula:
C4H4N2O3
IUPAC Name:
pyrimidine-2,4,6(1H,3H,5H)-trione

Results and discussion

Particle size
Percentile:
D50
Mean:
123.15 µm
St. dev.:
16

Any other information on results incl. tables

D50: 123 µm

monomodal particle size distribution

Given standard deviation is estimated and based on the general experience with the method and similar test substances.

D50: 13 % of D50 (minimum value 0.1 µm)

Applicant's summary and conclusion