Have you ever wondered where the term „vinyl” came from? Turns out it has its source in the Latin vinum, meaning wine. In 1809 von Vogel discovered a compound which could decompose producing either diethyl ether or ethene (and another product, identical in both cases). As synthesis started with one of the wine components, Gmelin suggested to name the gaseous product of the decomposition Vine or Vinegas, and later – in 1854 – Kolbe proposed the name „vinyl” for the monovalent radical C2H3– of this gas, thus we have vinyl alcohol, vinyl chloride, polivinyl chloride (PVC), and so on.
Suggest the identity of von Vogel's compound knowing that it contains 25.42% of sulfur and its solutions have low pH.