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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
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report Date:
2019

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: CIPAC MT 59 Sieve Analysis CIPAC MT 170 Dry Sieve Analysis of Water Dispersible Granules CIPAC MT 169 Tap Density of Water Dispersible Granules
GLP compliance:
yes (incl. certificate)
Type of method:
sieving

Test material

Reference
Name:
Unnamed
Test material form:
solid: crystalline

Results and discussion

Particle size
Key result
Percentile:
D99
Mean:
>= 250 - < 1 000 µm
St. dev.:
0.99
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
ca. 250 µm
Distribution:
ca. 34.7 %
No.:
#2
Size:
ca. 500 µm
Distribution:
ca. 48.93 %
No.:
#3
Size:
ca. 1 000 µm
Distribution:
ca. 9.59 %
No.:
#4
Size:
ca. 100 µm
Distribution:
ca. 6.18 %

Applicant's summary and conclusion

Conclusions:
Machine sieving test was carried out using the following test sieves 4, 2, 1 mm, 500, 250,
100, 63 and 45 µm.
The particle size distribution of Ammonium Adipate was found to be: between 250 µm and
1000 µm.
Executive summary:

Machine sieving test was carried out using the following test sieves 4, 2, 1 mm, 500, 250, 100, 63 and 45 µm.
The particle size distribution of Ammonium Adipate was found to be: between 250 µm and 1000 µm.

The tap density of Ammonium Adipate was found to be 0.72 g/mL.
Details are summarized in Table 1.
Table 1. Tap density determination

Sample mass (W): 79.40 g
Sample volume after dropping (V): 110 mL
Tap density (D): 0.72 g/mL

The particle size distribution of Ammonium Adipate was found to be in the range of 250 to
1000 µm. Details are summarized in Table 2.
Table 2. Sieve test

Number of sieves (n): 8
Sample mass (m calculated): 115.5 g
Samples mass (weighed): 114.54 g
Sieve Residue mass gx
(g)
Residue rx
(m/m) %
Sum of residues Rx
(m/m) %
Size (µm) Serial No.
< 45 receiver pan 0.00 0.00 99.80
45 20111588 0.00 0.00 99.80
63 20111627 0.15 0.13 99.80
100 31121141 7.08 6.18 99.67
250 20111667 39.75 34.70 93.49
500 16111554 56.05 48.93 58.78
1000 20111725 10.98 9.59 9.85
2000 24111027 0.29 0.25 0.26
4000 14111099 0.01 0.01 0.01