CPC C09D 11/03 (2013.01) [C09D 5/00 (2013.01); C09D 5/24 (2013.01); C09D 7/43 (2018.01); C09D 7/45 (2018.01); C09D 7/61 (2018.01); C09D 7/70 (2018.01); C09D 11/033 (2013.01); C09D 11/52 (2013.01); H01B 1/22 (2013.01); H01L 31/022466 (2013.01); H01L 31/1884 (2013.01); C09K 23/00 (2022.01)] | 20 Claims |
1. A purified surfactant formulation comprising:
a fluorosurfactant represented by Formula (I):
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an impurity represented by Formula (II):
![]() wherein:
m is 0, 1, 2, 3, 4, 5, or 6;
n is 1, 2, 3, or 4;
X is —O—, —S—, or a direct bond;
Y is hydrogen, —OH, or fluoro;
Z is —CH3, —CH2F, —CHF2, or —CF3;
M+ is Li+, Na+, K+, H+, or NH4; and
R1, R2, R3, R4, and R5, at each occurrence, are the same or different and independently fluoro or hydrogen.
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