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Physical & Chemical properties

Particle size distribution (Granulometry)

Administrative data

Endpoint:
particle size distribution (granulometry)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2017-07-07
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2017
Report date:
2017

Materials and methods

Test guidelineopen allclose all
Qualifier:
according to guideline
Guideline:
ISO 13320 (Particle size analysis - Laser diffraction methods)
Qualifier:
according to guideline
Guideline:
other: USP <429>
GLP compliance:
no
Type of method:
Laser scattering/diffraction
Type of particle tested:
primary particle
Type of distribution:
volumetric distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
Sodium dicyanoamide
EC Number:
217-703-5
EC Name:
Sodium dicyanoamide
Cas Number:
1934-75-4
Molecular formula:
C2HN3.Na
IUPAC Name:
sodium dicyanamide
Test material form:
solid: particulate/powder
Details on test material:
The physical state of the test item at 20 °C and 101.3 kPa is solid (white powder).

Results and discussion

Particle sizeopen allclose all
Percentile:
D10
Mean:
ca. 8.4 µm
St. dev.:
1.3
Key result
Percentile:
D50
Mean:
ca. 27.1 µm
St. dev.:
4.5
Percentile:
D90
Mean:
ca. 270.2 µm
St. dev.:
140.7

Any other information on results incl. tables

Volume Distribution Q3

d10[µm]

d50[µm]

d90[µm]

 

6.861

22.19 

124.0

 

9.283

31.07

404.7

 

8.910

27.93

282.0

Mean:

8.351

27.06

270.2

Applicant's summary and conclusion

Conclusions:
The average particle size (volume distribution) of the test item is d10: 8 µm, d50: 27 µm and d90: 270 µm.
Executive summary:

The particle size distribution (volume distribution) of sodium dicyanoamide was measured by laser diffraction. The average of three measurements is: d10: 8 µm, d50: 27 µm and d90: 270 µm.

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