... 2009,by ethanol oxidization reaction, we got natural ethyl aldehyde.Usage used for the manufacture of poly_acetaldehyde, ... , acetic anhydride, butyraldehyde, octanol,pentaerythritol, paraldehyde and other important chemical raw material.GB 2760_2007 provides ... citrus, apples, butter and other type flavor.Specifications ethyl aldehydeItemStandardColor(APHA)10maxAcetaldehyde,%99.0minAcidity(by CH3COOH),%0 ...