Napier, James, 1810-1884, Fesquet, A. A · Philadelphia : H. Carey Baird · leaf 103
SULPHURIC ACID. 97 Fig. 9. … its being manufactured there. When this acid is poured into cold water, it produces a hissing noise, like that produced by putting a redhot iron into water. This acid is excellently adapted for making sulphate of indigo. Sulphuric acid may be mixed with water in any proportion, but there seem to be…
Dyes and dyeing · Coal-tar colors
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.
