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| Extraction of metals from PFA pellet |
| |
Ultra
Pure Fluon®PFA |
Conventional Fluon®PFA |
Conpetitor
New PFA-1 |
Conpetitor
New PFA-2 |
Lowest limit of measurement |
| Representative |
Guaranteed |
| Na |
1.6 |
2.0 |
2.6 |
3.0 |
13.6 |
0.05 |
| Mg |
0.24 |
0.5 |
0.17 |
0.08 |
0.26 |
0.03 |
| Ni |
0.17 |
0.5 |
0.21 |
5.68 |
4.03 |
0.03 |
| Cr |
0.12 |
0.5 |
0.13 |
2.93 |
2.02 |
0.03 |
| Cu |
0.12 |
0.5 |
0.39 |
0.73 |
0.38 |
0.03 |
| Al |
0.5 |
1.0 |
0.63 |
0.35 |
1.58 |
0.03 |
| Co |
<0.03 |
0.1 |
<0.03 |
0.85 |
0.03 |
0.03 |
| Mn |
<0.03 |
0.1 |
0.04 |
0.27 |
0.17 |
0.03 |
| Zn |
0.5 |
1.0 |
0.6 |
1.2 |
2.69 |
0.05 |
| Pb |
0.18 |
0.5 |
0.54 |
0.26 |
16.81 |
0.03 |
| K |
0.47 |
1.0 |
1.4 |
0.93 |
5.4 |
0.03 |
| Ca |
1.7 |
2.0 |
6.6 |
11.4 |
5.1 |
0.05 |
| Fe |
1.51 |
2.0 |
2.0 |
17.3 |
10.7 |
0.05 |
| Ba |
1.0 |
2.0 |
2.0 |
3.3 |
2.9 |
0.1 |
| Sr |
<0.03 |
0.1 |
<0.03 |
0.03 |
<0.03 |
0.03 |
| Li |
<0.03 |
0.1 |
<0.03 |
<0.03 |
<0.03 |
0.03 |
| TOTAL |
8.2 |
13.9 |
17.4 |
48.3 |
65.7 |
|
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*These figures are measured by AGC except guaranteed ones.
Method of measurement
(1) To boil 50grams of PFA pellet in nitric acid (13.6%) for 2hours at 80°C.
(2) take 30ml of (1) and make it evapolated.
(3) analyze the remaining solid by ICP-MS. |
| Extracted metallic impurities from molded products of PFA |
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