Lectures on coal tar colours, and on recent improvements and progress in dyeing and calico printing, embodying copious notes taken at the last London International Exhibition.. (1860)
reaware, either by mixing together at an ordinary temperature equalweights of madder and sulphuric acid, then adding water, when thegarancine was produced, requiring only to be thoroughly washed so asto remove the acid;—or by mixing the roots with one-third theirweight of sulphuric acid previously… … * Dr. Schunck also obtained as products of decomposition of rubian, rubi-anine and sugar. Those who are interested in these chemical researches willfind them fully detailed in the Transactions of the Royal Society. f We are indebted to Messrs. Wood and Wright for the above specimens. Although…
Coal-tar colors · Calico-printing · Dyes and dyeing
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