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Chloride of Platinum
The commercial chloride of platinum is the bichloride, formed by dissolving platinum in nitro-muriatic acid (aqua-regia), and evaporating the solution to dryness at a gentle heat. It is reddish-brown, deliquescent, and very soluble in water and in alcohol, yielding 4094. Suboxide of Copper. This is orange-colored solutions. (Cooley.) (See No. 3220.) the red oxide of copper, obtained by heating together in a covered crucible 4 parts copper filings, and 5 parts black oxide of copper. (See No. 4092.) Or: Mix 100 parts sulphate of copper with 57 parts carbonate of soda, (both in crystals), and fuse them at a gentle filings, ram the mixture into a crucible, cover