can i make hydrogen sulfide by reacting a sulfide with oxalic acid?
however, since my parent think that concentrated hydrochloric acid is too dangerous to work with, especially since i can only get huge 20L bottles of it, i have decided to quest for a new acid to react with calcium polysulfide, to get hydrogen sulfide, thats when i came across solid oxalic acid.
at first glimps, i saw that it said, hazardous, extremely corrosive acid, i thought "yes", this would work, i could react this with the lime sulfur , but then after some research i discoverd that no-one in the history of the world has ever documented the practical reaction of oxalic acid with a sulfide, in order to make hydrogen sulfide.
so i want to ask , will oxalic acid, when mixed with calcium polysulfide, generate hydrogen sulfide?
another reason though i might point out why i dont think oxalic acid will react with calcium polysulfide, is because it is a solid crystal acid, one that does not evapourate into gas like sulfuric or hydrochloric acid, and i cannot find anywhere documented either of non gaseous acids being able to react with calcium sulfide to make hydrogen sulfide, according to what i have found out, only nitric, sulfuric and hydrochloric acids will work. but this is also the reason i want to use oxalic acid over hydrochloric because i want to boil off the hydrogen sulfide through a tube and into concentrated ammonium hydroxide, but if there is hydrochloric acid in the solution, it would very likely boil off as well, which would be something of a hassle.