Copper(II) chlorate heated, giving off a yellow gas, which contains chlorine, oxygen and chlorine dioxide. A green solid is left that is a basic copper salt. Sulfur is highly reactive with copper chlorate, and it is important not to cross contaminate these chemicals, for example in pyrotechnic making. François-Marie Chertier used tetrammine copper chlorate to colour flames blue in 1843. This material was abbreviated TACC with formula Cu(NH)(ClO). TACC explodes on impact. The substance became known as Chertier'c copper for use in blue coloured pyrotechnics. However its deliquescence causes a problem. Mixtures with other metal salts can yield violet or lilac colours
Barium acetate the words "barium acetate" in hopes of preventing future "copycat" crimes. The print media, and a 2014 episode of the crime documentary series "Redrum", have not been so circumspect. Also named as the choice poison of a teen's murder of her father in Deadly Women "Parents Peril", S6 E2. Barium acetate Barium acetate (Ba(CHO)) is the salt of barium(II) and acetic acid. Barium acetate is generally produced by the reaction of acetic acid with barium carbonate: The reaction is performed in solution and the barium acetate crystallizes out. Alternatively, barium sulfide can be used: Again, the solvent is evaporated off