Blues and Carmines of Indigo; A Practical Treatise on the Fabrication of Every Commercial Product Derived from Indigo

Blues and Carmines of Indigo; A Practical Treatise on the Fabrication of Every Commercial Product Derived from Indigo

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1863 edition. Excerpt: ..."" "Cochineal, "" "Wood. Treated by hydrochloric acid the red formed by madder turns yellow or yellow orange; thus modified, if they are dipped in a milk lime bath, all places touched by acids take a fine violet shade, which becomes rose in passing them in soap water. The reds by cochineal and wood, by acid take a current shade, passed in lime water they form a violet which disappears in soap. Concentrated sulphuric acid turns the cochineal into a bright cherry red, and the wood into yellow orange. Assay of Yellows. They are distinguished into wood, quercitron, fustic, turmeric, astringent substances, annotto, chrome', orpiment, nankin, and rust. Yellows with quercitron are destroyed by chlorine, but do not turn sensibly orange by alkalies; chloride of tin, nitric acid give them a reddish color. Fustic Yellows are destroyed by chlorine. Potash turns them Turkish yellow; treated by chloride of tin they pass orange. Treated by nitric acid they take a dust color. Orange or Nankin by fustic turn red by sulphuric acid, and catechu shade by potash; they are destroyed by nitric acid. Turmeric yellows are decolorized by chlorine, and turn red orange by alkalies. Sumach yellows take a lighter shade by chloride of tin; redden by nitric acid. The orange yellow by annotto are attacked with difficulty by chlorine; they pass greenish blue by sulphuric acid; they take a dark shade, and disappear by nitric acid. Chrome yellows are not destroyed by heat; they are not attacked by weak hydrochloric acid, but destroyed by concentratedO hydrochloric acid; they are dissolved and decolorized by caustic potash; they are transformed in orange when dipped in boiling lime water. Orpiment yellows are not attacked by hydrochloric acid, soluble...
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Product details

  • Paperback | 32 pages
  • 189 x 246 x 2mm | 77g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 1236534948
  • 9781236534941