Artificial dye-stuffs; their nature, manufacture, and uses (1917)
Ramsey, Albert R. J, Weston, H. Claude (Hubert Claude) · London, Routledge; New York, Dutton · leaf 132
chloride precipitated withthe concentrated acid. The dye is a nearly blacksubstance insoluble in water, but freely soluble inalcohol to a dark blue solution, which dyes wool andsilk a pure blue. Another group of triphenylmethane dye-stuffs isproduced by substituting hydroxyl-groups for… … OH Owing to the fact that the substituted radicals arein ortho-position, the dye-stuff is capable of enteringinto combination with metallic mordants of the irongroup, and especially \vith a chrome mordant, ii8 THE ARYLMETHANE DYES producing a fast violet on cotton. It is chiefly usedin printing…
Dyes and dyeing
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