What is a white, amorphous, deliquescent powder, (CO.H)2, obtained by the partial oxidation of glycol. It is a double aldehyde, between glycol and oxalic acid called?

glyoxal — A white, amorphous, deliquescent powder, (CO.H)2, obtained by the partial oxidation of glycol. It is a double aldehyde, between glycol and oxalic acid. (Webster's 1913.)

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