I’m nasty, but useful in the lab. What molecule am I? In German Patent 182,287 (1905), inventor Max le Blanc of Leipzig described an electrolytic method for the continuous production for chromic acid ...

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MEASUREMENT of losses in weight due to corrosion of magnesium in 0.1 N sulphuric and chromic acids of pH. 1.4 over a 4-week period showed a loss of 3,800 mg/dm 2 in sulphate and no loss in chromate.