Some Basic Experiments of Acetylene Purifier (3)

Abstract

In our former reports, we chose an equal volume of ferric chloride and cupric chloride accordingly to patent as the liquid purifier. But the effective proportion has not been discussed in our experiments. In this point, the following results are obtained. By changing the proportion of ferric chloride and cupric chloride, its purifying power can not be varied. However, the precipitate (Hg₃P₂⋅3HgCl₂⋅3H₂O) is easily decomposed by addition of cupric chloride.
The relationship between the time required for regeneration and cupric chloride content in mother liquour is linear. A slightly excessive concentration of hydrogen chloride containing ferric chloride only can decompose the precipitate.
Therefore, in this connection it could be noted that presence of cupric chloride in liquid purifier is not necessary. Hydrogen sulphide presence in acetylene is not purified in exactly by water washing when its content is considerable amounts. With respect to the removal of hydrogen sulphide, stannic chloride is a versatile chemical agent, more than other known inorganic chlorides.