| 摘要 |
Thermally/chemically stable and nontoxic inorganic pigments/colorants, characteristically green and well suited for the coloration of a wide variety of materials and substrates, for example, plastics, ceramics, etc., comprise at least one mixed oxide of the formula:in which R is at least one element selected from among yttrium and a rare earth having an atomic number ranging from 62 to 71, inclusive, M and M', which may be identical or different, are each at least one metallic element exhibiting at least one valence state of +2, and x and y are numbers, the sum x+y of which is equal to 2.
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