| http://www.w3.org/ns/prov#value | - These colourants are pigments, and may be used in combination, and titanium dioxide and silicon dioxide work particularly well together in this respect.Proportions of the various components in a white luminous material are such that the percentage by weight of the white colourant to the matrix material is between 0.33% and 3%, and that of the luminescent material to the total of the luminescent ma
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