Hummel, J. J. (John James), d. 1902 · London : Cassell · leaf 200
f the liquid, the silk-gum itself causesdecomposition and precipitation of an insoluble basicsalt throughout its mass during the steeping operation.The washing in water, and rinsing in sodium carbonate,complete the decomposition, and remove the necessarilyliberated acid salt. In the case of… … w Chap. XI.] IRON MORDANTS. 187 M hicli, of course, also removes the acid salt formed. Theemployment of water containing bicarbonate of hme isexceedingly advantageous for the washing, since itgreatly facilitates the decomposition of the absorbed mordant. The boiling in soap solution is necessary to…
Dyes and dyeing
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