| http://www.w3.org/ns/prov#value | - inders, gum arabic, lecithin, and the like); pH adjusters or buffering agents (e.g., metal hydroxides, preferably alkali metal hydroxides such as sodium hydroxide and potassium hydroxide, and other alkali metal buffers such as metal carbonates, preferably potassium carbonate or sodium carbonate, or metal bicarbonates such as sodium bicarbonate, and the like); colorants (e.g., dyes and pigments, in
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