Parry, Ernest J. (Ernest John), Coste, J. H. (John Henry), b. 1871 · London : Scott, Greenwood ; New York : D. Van Nostrand · leaf 29
of a typical extract, which is shown below, is the almost complete extinction of the red-yellow rays and the extreme violet (Fig. 3, 7). Methyl Violet. — The last spectrum we shall here consider is that of methyl violet, one of the coal-tar violets, whose chemical relationships are expressed by the… … Fig. 3. 3. a Alcoholic solution. Alcoholic ammoniacal solution. y Aqueous ammoniacal solution. 5. a Tartrazine. jQ Picric acid. 2
Pigments · Paint
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