Note 525 — Chapter XX · ARTIFICIAL SILK—ITS PRODUCTION AND USE IN THE MANTLE INDUSTRY

The cellulose esters are usually named as if they were derived from a compound C₁₂H₂₀O₁₀, the formula for cellulose being (C₆H₁₀O₅)n. Thus the formation of the ‘hexa-nitrate’ would be represented—

C₁₂H₂₀O₁₀ + 6HNO₃ = C₁₂H₁₄O₄(NO₃)₆ + 6H₂O.

[526] In the Lehner process, in which collodion is also used, larger quantities of solvent are employed, so that much more dilute solutions are obtained; these require low pressures to form the thread, which is then hardened chemically.