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Oxalic acid industrial preparation
The document describes three methods for manufacturing oxalic acid: 1) From sodium formate by reacting sodium hydroxide and carbon monoxide to form sodium formate, then converting it to calcium oxalate and precipitating oxalic acid. Yield is 80%. 2) From propylene by oxidizing it with nitric acid in two steps to form alpha-nitratolactic acid then oxalic acid. 3) From dimethyl oxalate by producing it from methyl nitrite, then hydrolyzing it to oxalic acid. The document also discusses some applications of oxalic acid such as in dyeing, rust removal, and cleaning, and provides details on
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