MAGNESIUM OXIDE POWDER, AND METHOD FOR PRODUCING THE SAME
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May 1, 2017
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May 13, 2016
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The present invention provides a magnesium oxide powder capable of restraining the deformation of the internal circumferential shape of an annealed coil, and further giving a sufficiently uniform coat external appearance after the annealing; and a method for producing the powder. The magnesium oxide powder of the invention is a magnesium oxide powder including an Fe element, wherein a content of the Fe element is from 0.03 to 0.20% by weight, and at least a part of the Fe element has a cluster structure.
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