Superparamagnetic fine particles of iron oxide and magnetic reco

Details Superparamagnetic fine particles of iron oxide and magnetic reco Superparamagnetic fine particles of iron oxide and magnetic reco

1993-04-19

1994-11-29

Nakarani, D. S.

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Including a second component containing structurally defined...

252 6256, 252 6258, 252 6259, 423633, 423634, 428323, 428328, 428331, 428403, 428404, 428694BN, B32B 516, G11B 570

Patent

active

053689330

ABSTRACT:
Disclosed herein is superparamagnetic fine particles of iron oxide having an unsaturated fatty acid adsorbed on the surface of superparamagnetic fine particles and having a magnetization of not less than 50 emu/g, the rate of change of the magnetization of not more than 10%, and an Fe.sup.2+ content (calculated as Fe.sup.2+ /Fe.sup.3+ molar ratio) of 0.16-0.5.

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