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Particle size distribution (Granulometry)

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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:
other: Acceptable, well documented study report which meets basic scientific principles

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Principles of method if other than guideline:
sieving (880µm)
image analysis of coarse fraction and fine fraction (light microscopy)
GLP compliance:
no
Type of distribution:
counted distribution

Test material

Constituent 1
Chemical structure
Reference substance name:
p-toluidine
EC Number:
203-403-1
EC Name:
p-toluidine
Cas Number:
106-49-0
Molecular formula:
C7H9N
IUPAC Name:
p-toluidine
Details on test material:
- Name of test material (as cited in study report): p-Toluidin
- Physical state: solid, pastilles
- Analytical purity: 99.7 % (GC)

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.
Particle size distribution at different passagesopen allclose all
No.:
#1
Size:
>= 1.4 - <= 775.6 µm
Distribution:
0.39 %
No.:
#2
Size:
>= 845 - <= 16 082.8 µm
Distribution:
99.61 %

Any other information on results incl. tables

The coarse fraction of the sample ( 845 µm - 16083 µm) with a arithmetic mean diameter of 4228.6 µm was 99.61 %(w/w) .

The fine fraction of the sample(1.4 µm to 776 µm) with a arithmetic mean diameter of 113.5 µm was 0.39%(w/w).

Table 1. Result particle size distribution

Fraction

wt%

Dmin [µm]

Dmax [µm]

Dmean [µm]

<880 µm

0.39

1.4

775.6

113.5

> 880 µm

99.61

845.2

16082.8

4228.6

I. Coarse fraction (>880 µm):

 

Statistical Data:

 

Weight:                     6.87908 g

Counts:                      425

Minimum:                   845.2 µm

Maximum:                  16082.8 µm

Arithmetic mean:       4228.6 µm

Median:                     4040.4 µm

Standard deviation:   2489.8 µm

 

D10: 1275.9µm

D25: 2165.3µm

D50: 4040.4µm

D75: 5800.0µm

D90: 7444.8µm

Table I.1. Fraction > 880 µm, particle size distribution

Min [µm] Max [µm]

Counts

Counts/g

750 899,99 4 1% 0,6
900 1049,99 13 3% 1,9
1050 1199,99 21 5% 3,1
1200 1349,99 10 2% 1,5
1350 1499,99 9 2% 1,3
1500 1649,99 12 3% 1,7
1650 1799,99 9 2% 1,3
1800 1949,99 13 3% 1,9
1950 2099,99 13 3% 1,9
2100 2249,99 8 2% 1,2
2250 2399,99 13 3% 1,9
2400 2549,99 10 2% 1,5
2550 2699,99 12 3% 1,7
2700 2849,99 7 2% 1,0
2850 2999,99 13 3% 1,9
3000 3149,99 8 2% 1,2
3150 3299,99 2 0% 0,3
3300 3449,99 3 1% 0,4
3450 3599,99 11 3% 1,6
3600 3749,99 6 1% 0,9
3750 3899,99 4 1% 0,6
3900 4049,99 13 3% 1,9
4050 4199,99 14 3% 2,0
4200 4349,99 10 2% 1,5
4350 4499,99 6 1% 0,9
4500 4649,99 6 1% 0,9
4650 4799,99 10 2% 1,5
4800 4949,99 7 2% 1,0
4950 5099,99 13 3% 1,9
5100 5249,99 6 1% 0,9
5250 5399,99 7 2% 1,0
5400 5549,99 8 2% 1,2
5550 5699,99 7 2% 1,0
5700 5849,99 14 3% 2,0
5850 5999,99 9 2% 1,3
6000 6149,99 6 1% 0,9
6150 6299,99 9 2% 1,3
6300 6449,99 7 2% 1,0
6450 6599,99 5 1% 0,7
6600 6749,99 5 1% 0,7
6750 6899,99 4 1% 0,6
6900 7049,99 6 1% 0,9
7050 7199,99 2 0% 0,3
7200 7349,99 6 1% 0,9
7350 7499,99 2 0% 0,3
7500 7649,99 4 1% 0,6
7650 7799,99 5 1% 0,7
7800 7949,99 4 1% 0,6
7950 8099,99 3 1% 0,4
8100 8249,99 2 0% 0,3
8250 8399,99 1 0% 0,1
8400 8549,99 4 1% 0,6
8550 8699,99 1 0% 0,1
8700 8849,99 0 0% 0,0
8850 8999,99 2 0% 0,3
9000 9149,99 1 0% 0,1
9150 9299,99 1 0% 0,1
9300 9449,99 0 0% 0,0
9450 9599,99 3 1% 0,4
9600 9749,99 0 0% 0,0
9750 9899,99 0 0% 0,0
9900 10049,99 1 0% 0,1
10050 10199,99 2 0% 0,3
10200 10349,99 0 0% 0,0
10350 10499,99 0 0% 0,0
10500 10649,99 0 0% 0,0
10650 10799,99 0 0% 0,0
10800 10949,99 1 0% 0,1
10950 11099,99 2 0% 0,3
11100 11249,99 0 0% 0,0
11250 11399,99 0 0% 0,0
11400 11549,99 0 0% 0,0
11550 11699,99 1 0% 0,1
11700 11849,99 0 0% 0,0
11850 11999,99 0 0% 0,0
12000 12149,99 1 0% 0,1
12150 12299,99 0 0% 0,0
12300 12449,99 0 0% 0,0
12450 12599,99 0 0% 0,0
12600 12749,99 0 0% 0,0
12750 12899,99 0 0% 0,0
12900 13049,99 1 0% 0,1
13050 13199,99 0 0% 0,0
13200 13349,99 0 0% 0,0
13350 13499,99 0 0% 0,0
13500 13649,99 0 0% 0,0
13650 13799,99 0 0% 0,0
13800 13949,99 1 0% 0,1
13950 14099,99 0 0% 0,0
14100 14249,99 0 0% 0,0
14250 14399,99 0 0% 0,0
14400 14549,99 0 0% 0,0
14550 14699,99 0 0% 0,0
14700 14849,99 0 0% 0,0
14850 14999,99 0 0% 0,0
15000 15149,99 0 0% 0,0
15150 15299,99 0 0% 0,0
15300 15449,99 0 0% 0,0
15450 15599,99 0 0% 0,0
15600 15749,99 0 0% 0,0
15750 15899,99 0 0% 0,0
15900 16049,99 0 0% 0,0
16050 16199,99 1 0% 0,1

II. Fine fraction:

 

Statistical Data summarised from particle size distribution 0-100µm and 100-880µm:

 

Weight:              0.02673g

Counts:                      300

Minimum:                   1.4 µm

Maximum:                  775.6 µm

Arithmetic mean:       113.5 µm

Median:                     34.8 µm

Standard deviation:   167.2 µm

 

D10: 2.4µm

D25: 5.1µm

D50: 34.8µm

D75: 149.5µm

D90: 330.8µm

Table II.1. Fraction < 880 µm (band up to 100 µm), particle size distribution

Min [µm] Max [µm]

Counts

Counts/g

1 1,99 10 3,3% 374,1
2 2,99 35 11,7% 1309,4
3 3,99 11 3,7% 411,5
4 4,99 17 5,7% 636,0
5 5,99 14 4,7% 523,8
6 6,99 9 3,0% 336,7
7 7,99 5 1,7% 187,1
8 8,99 9 3,0% 336,7
9 9,99 5 1,7% 187,1
10 10,99 3 1,0% 112,2
11 11,99 3 1,0% 112,2
12 12,99 0 0,0% 0,0
13 13,99 3 1,0% 112,2
14 14,99 1 0,3% 37,4
15 15,99 3 1,0% 112,2
16 16,99 1 0,3% 37,4
17 17,99 2 0,7% 74,8
18 18,99 2 0,7% 74,8
19 19,99 1 0,3% 37,4
20 20,99 0 0,0% 0,0
21 21,99 2 0,7% 74,8
22 22,99 1 0,3% 37,4
23 23,99 1 0,3% 37,4
24 24,99 0 0,0% 0,0
25 25,99 1 0,3% 37,4
26 26,99 1 0,3% 37,4
27 27,99 3 1,0% 112,2
28 28,99 1 0,3% 37,4
29 29,99 2 0,7% 74,8
30 30,99 0 0,0% 0,0
31 31,99 1 0,3% 37,4
32 32,99 1 0,3% 37,4
33 33,99 0 0,0% 0,0
34 34,99 2 0,7% 74,8

Table II.2. Fraction < 880 µm (in the range of 100 µm up to 880 µm), particle size distribution

Min [µm] Max [µm]

Counts

Counts/g

35 44,99 7 2% 261,9
45 54,99 3 1% 112,2
55 64,99 4 1% 149,6
65 74,99 13 4% 486,3
75 84,99 7 2% 261,9
85 94,99 12 4% 448,9
95 104,99 6 2% 224,5
105 114,99 7 2% 261,9
115 124,99 5 2% 187,1
125 134,99 7 2% 261,9
135 144,99 2 1% 74,8
145 154,99 4 1% 149,6
155 164,99 4 1% 149,6
165 174,99 6 2% 224,5
175 184,99 4 1% 149,6
185 194,99 2 1% 74,8
195 204,99 2 1% 74,8
205 214,99 2 1% 74,8
215 224,99 4 1% 149,6
225 234,99 0 0% 0,0
235 244,99 1 0% 37,4
245 254,99 2 1% 74,8
255 264,99 5 2% 187,1
265 274,99 2 1% 74,8
275 284,99 1 0% 37,4
285 294,99 2 1% 74,8
295 304,99 1 0% 37,4
305 314,99 2 1% 74,8
315 324,99 2 1% 74,8
325 334,99 2 1% 74,8
335 344,99 2 1% 74,8
345 354,99 0 0% 0,0
355 364,99 1 0% 37,4
365 374,99 1 0% 37,4
375 384,99 0 0% 0,0
385 394,99 0 0% 0,0
395 404,99 2 1% 74,8
405 414,99 1 0% 37,4
415 424,99 1 0% 37,4
425 434,99 2 1% 74,8
435 444,99 1 0% 37,4
445 454,99 0 0% 0,0
455 464,99 0 0% 0,0
465 474,99 0 0% 0,0
475 484,99 1 0% 37,4
485 494,99 0 0% 0,0
495 504,99 1 0% 37,4
505 514,99 0 0% 0,0
515 524,99 0 0% 0,0
525 534,99 0 0% 0,0
535 544,99 0 0% 0,0
545 554,99 0 0% 0,0
555 564,99 0 0% 0,0
565 574,99 1 0% 37,4
575 584,99 1 0% 37,4
585 594,99 1 0% 37,4
595 604,99 1 0% 37,4
605 614,99 0 0% 0,0
615 624,99 3 1% 112,2
625 634,99 2 1% 74,8
635 644,99 0 0% 0,0
645 654,99 0 0% 0,0
655 664,99 0 0% 0,0
665 674,99 2 1% 74,8
675 684,99 1 0% 37,4
685 694,99 1 0% 37,4
695 704,99 0 0% 0,0
705 714,99 1 0% 37,4
715 724,99 0 0% 0,0
725 734,99 0 0% 0,0
735 744,99 0 0% 0,0
745 754,99 0 0% 0,0
755 764,99 1 0% 37,4
765 774,99 0 0% 0,0
775 784,99 1 0% 37,4

Applicant's summary and conclusion

Executive summary:

Karbach A, 2009

Particle size distribution was analysed by image analysis after sieving (880µm).

The coarse fraction of the sample (845 µm - 16100 µm) with a mean diameter of 4228.6 µm was 99.61 %(w/w) .

The fine fraction (1.4 µm to 780 µm) was 0.39%(w/w) of the sample. It was analysed by light microscopy. The mean diameter of this fraction was 113.5 µm.