Potassium hexafluorophosphate

Particle size distribution (Granulometry)

Administrative data

Endpoint:

particle size distribution (granulometry)

Type of information:

experimental study

Adequacy of study:

key study

Study period:

2015-10-26 to 2015-10-27

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Data source

Reference

Reference Type:

study report

Title:

Unnamed

Year:

2016

Report date:

2016

Materials and methods

Test guideline

Test guideline 1

Qualifier:

according to guideline

Guideline:

OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions - Method A: Particle Size Distribution (effective hydrodynamic radius)

Version / remarks:

adopted 12 May 1981

Test guideline 2

Qualifier:

according to guideline

Guideline:

ISO 13320 (Particle size analysis - Laser diffraction methods)

Version / remarks:

2009

Test guideline 3

Qualifier:

according to guideline

Guideline:

other: USP 429 Light Diffraction Measurements of Particle Size (2012).

Version / remarks:

USP 429 Light Diffraction Measurements of Particle Size (2012).

GLP compliance:

yes (incl. QA statement)

Type of method:

Laser scattering/diffraction

Type of particle tested:

other: powder is fed into an air stream by a delivery system

Type of distribution:

volumetric distribution

Test material

Test material information

Constituent 1

Reference substance name:

Potassium hexafluorophosphate

EC Number:

241-143-0

EC Name:

Potassium hexafluorophosphate

Cas Number:

17084-13-8

Molecular formula:

F6P.K

IUPAC Name:

potassium hexafluoro-λ⁵-phosphanuide

Test material form:

solid: crystalline

Details on test material:

- State of aggregation: solid
- Other: crystalline powder,
Colour: white
hygroscopic

Specific details on test material used for the study:

Physical state (20 °C)
solid
Appearance
crystalline powder
Odour
product-specific
Colour
white
Special properties
hygroscopic

Results and discussion

Mass median aerodynamic diameter:

269.5 µm

Remarks on result:

other: Although the particle size distribution is determined in an air stream, the measured particle sizes do not represent "aerodynamic" diameters, but rather "geometric" diameters.

Particle size

Particle size 1

Key result

Percentile:

D10

Mean:

123.6 µm

St. dev.:

0.4

Remarks on result:

other: average of three measurements

Particle size 2

Percentile:

D50

Mean:

234.4 µm

St. dev.:

2.1

Remarks on result:

other: average of three measurements

Particle size 3

Percentile:

D90

Mean:

397.2 µm

St. dev.:

3.2

Remarks on result:

other: average of three measurements

Any other information on results incl. tables

Result (diameter)	d10	d50	d90	dmean	Standard deviation
1st Measurement 2nd Measurement 3^rdMeasurement	123.8 pm 123.2 pm 123.9 pm	236.8 pm 233.6 pm 232.8 pm	400.6 pm 394.3 pm 396.6 pm	273.2 pm 268.2 pm 267.0 pm	195.8 pm 180.7 pm 179.0 pm
Average	123.6 pm	234.4 pm	397.2 pm	269.5 pm	185.2 pm
Standard deviation	0.4 pm	2.1 pm	3.2 pm

1st measurement:

x (Unten) pm	q3 %	Q3 %	x (Unten) pm	q3 %	Q3 %
0.375	0	0	176.9	6.72	25.7
0.412	0	0	194.2	7.83	32.4
0.452	0	0	213.2	8.69	40.2
0.496	0	0	234.1	9.09	48.9
0.545	0	0	256.9	8.92	58.0
0.598	0	0	282.1	8.14	66.9
0.657	0	0	309.6	6.87	75.1
0.721	0.00046	0	339.9	5.30	81.9
0.791	0.0061	0.00046	373.1	3.68	87.2
0.869	0.018	0.0065	409.6	2.25	90.9
0.954	0.029	0.025	449.7	1.15	93.2
1.047	0.037	0.054	493.6	0.48	94.3
1.149	0.042	0.091	541.9	0.22	94.8
1.261	0.045	0.13	594.9	0.24	95.0
1.385	0.044	0.18	653.0	0.43	95.3
1.520	0.042	0.22	716.9	0.66	95.7
1.669	0.038	0.26	787.0	0.78	96.3
1.832	0.033	0.30	863.9	0.76	97.1
2.011	0.028	0.33	948.3	0.65	97.9
2.208	0.022	0.36	1041	0.47	98.5
2.423	0.018	0.38	1143	0.30	99.0
2.660	0.014	0.40	1255	0.19	99.3
2.920	0.011	0.42	1377	0.14	99.5
3.206	0.010	0.43	1512	0.14	99.6
3.519	0.010	0.44	1660	0.13	99.8
3.863	0.011	0.45	1822	0.081	99.9
4.241	0.013	0.46	2000		100
4.656	0.015	0.47
5.111	0.017	0.49
5.610	0.020	0.50
6.159	0.023	0.52
6.761	0.026	0.55
7.422	0.028	0.57
8.148	0.030	0.60
8.944	0.031	0.63
9.819	0.033	0.66
10.78	0.033	0.70
11.83	0.033	0.73
12.99	0.034	0.76
14.26	0.035	0.80
15.65	0.036	0.83
17.18	0.039	0.87
18.86	0.043	0.91
20.71	0.049	0.95
22.73	0.055	1.00
24.95	0.064	1.05
27.39	0.074	1.12
30.07	0.088	1.19
33.01	0.11	1.28
36.24	0.13	1.38
39.78	0.16	1.52
43.67	0.20	1.68
47.94	0.24	1.88
52.63	0.28	2.12
57.77	0.32	2.40
63.42	0.37	2.72
69.62	0.44	3.09
76.43	0.56	3.53
83.90	0.78	4.09
92.10	1.10	4.87
101.1	1.53	5.97
111.0	2.06	7.50
121.8	2.70	9.56
133.8	3.48	12.3
146.8	4.42	15.7
161.2	5.53	20.2

2nd measurement

x (Unten) pm	q3 %	Q3 %	X(Unten) pm	q3 %	Q3 %
0.375	0	0	176.9	6.93	26.3
0.412	0	0	194.2	8.06	33.3
0.452	0	0	213.2	8.89	41.3
0.496	0.00034	0	234.1	9.23	50.2
0.545	0.0046	0.00034	256.9	8.95	59.4
0.598	0.014	0.0050	282.1	8.05	68.4
0.657	0.023	0.019	309.6	6.65	76.4
0.721	0.030	0.042	339.9	4.99	83.1
0.791	0.036	0.072	373.1	3.32	88.1
0.869	0.040	0.11	409.6	1.89	91.4
0.954	0.042	0.15	449.7	0.86	93.3
1.047	0.042	0.19	493.6	0.30	94.1
1.149	0.040	0.23	541.9	0.15	94.4
1.261	0.037	0.27	594.9	0.26	94.6
1.385	0.033	0.31	653.0	0.55	94.9
1.520	0.028	0.34	716.9	0.82	95.4
1.669	0.024	0.37	787.0	0.94	96.2
1.832	0.019	0.40	863.9	0.90	97.2
2.011	0.015	0.41	948.3	0.77	98.1
2.208	0.012	0.43	1041	0.57	98.8
2.423	0.010	0.44	1143	0.37	99.4
2.660	0.0091	0.45	1255	0.18	99.8
2.920	0.0091	0.46	1377	0.046	99.95
3.206	0.010	0.47	1512	0.0028	99.997
3.519	0.012	0.48	1660	0	100
3.863	0.014	0.49	1822	0	100
4.241	0.016	0.51	2000		100
4.656	0.018	0.52
5.111	0.020	0.54
5.610	0.022	0.56
6.159	0.024	0.58
6.761	0.026	0.61
7.422	0.027	0.63
8.148	0.028	0.66
8.944	0.029	0.69
9.819	0.030	0.72
10.78	0.030	0.75
11.83	0.031	0.78
12.99	0.032	0.81
14.26	0.034	0.84
15.65	0.036	0.87
17.18	0.039	0.91
18.86	0.043	0.95
20.71	0.048	0.99
22.73	0.055	1.04
24.95	0.063	1.09
27.39	0.075	1.16
30.07	0.089	1.23
33.01	0.11	1.32
36.24	0.13	1.43
39.78	0.16	1.56
43.67	0.19	1.71
47.94	0.23	1.90
52.63	0.27	2.13
57.77	0.32	2.41
63.42	0.38	2.73
69.62	0.46	3.11
76.43	0.59	3.57
83.90	0.79	4.16
92.10	1.10	4.95
101.1	1.54	6.06
111.0	2.09	7.59
121.8	2.77	9.69
133.8	3.59	12.5
146.8	4.58	16.0
161.2	5.72	20.6

3rd measurement

x (Unten) pm	q3 %	Q3 %	X(Unten) pm	q3 %	Q3 %
0.375	0	0	176.9	7.08	26.4
0.412	0	0	194.2	8.17	33.5
0.452	0	0	213.2	8.92	41.6
0.496	0	0	234.1	9.16	50.5
0.545	0	0	256.9	8.80	59.7
0.598	0	0	282.1	7.87	68.5
0.657	0	0	309.6	6.51	76.4
0.721	0.00038	0	339.9	4.93	82.9
0.791	0.0050	0.00038	373.1	3.39	87.8
0.869	0.015	0.0054	409.6	2.08	91.2
0.954	0.024	0.021	449.7	1.13	93.3
1.047	0.031	0.045	493.6	0.56	94.4
1.149	0.036	0.076	541.9	0.32	95.0
1.261	0.039	0.11	594.9	0.31	95.3
1.385	0.039	0.15	653.0	0.43	95.6
1.520	0.038	0.19	716.9	0.60	96.0
1.669	0.035	0.23	787.0	0.71	96.6
1.832	0.032	0.26	863.9	0.73	97.3
2.011	0.027	0.30	948.3	0.67	98.1
2.208	0.023	0.32	1041	0.53	98.7
2.423	0.019	0.35	1143	0.37	99.3
2.660	0.015	0.36	1255	0.22	99.6
2.920	0.013	0.38	1377	0.10	99.9
3.206	0.011	0.39	1512	0.031	99.97
3.519	0.0098	0.40	1660	0.0024	99.998
3.863	0.0098	0.41	1822	0	100
4.241	0.011	0.42	2000		100
4.656	0.012	0.43
5.111	0.014	0.45
5.610	0.016	0.46
6.159	0.019	0.48
6.761	0.021	0.49
7.422	0.023	0.51
8.148	0.025	0.54
8.944	0.027	0.56
9.819	0.028	0.59
10.78	0.029	0.62
11.83	0.029	0.65
12.99	0.029	0.68
14.26	0.030	0.71
15.65	0.031	0.74
17.18	0.033	0.77
18.86	0.036	0.80
20.71	0.040	0.83
22.73	0.045	0.87
24.95	0.053	0.92
27.39	0.064	0.97
30.07	0.078	1.04
33.01	0.097	1.12
36.24	0.12	1.21
39.78	0.14	1.33
43.67	0.17	1.48
47.94	0.21	1.65
52.63	0.25	1.86
57.77	0.30	2.10
63.42	0.37	2.40
69.62	0.48	2.77
76.43	0.64	3.24
83.90	0.86	3.88
92.10	1.16	4.74
101.1	1.56	5.90
111.0	2.07	7.45
121.8	2.74	9.52
133.8	3.61	12.3
146.8	4.66	15.9
161.2	5.85	20.5

Applicant's summary and conclusion

Conclusions:

The particle size distribution (volume distribution) measured by laser diffraction in an air stream is:
d10: 123.6 µm
d50: 234.4 µm
d100: 397.2 µm
dmean: 269.5 µm

Executive summary:

For Potassium hexafluorophosphate the particle size distribution (volume distribution) was measured by laser diffraction (OECD 110) in an air stream.

The average of three measurements is:

d10:       123.6 µm

d50:       234.4 µm

d00:       397.2 µm

dmean:   269.5 µm