乙醛标准物质的制备白桂苓，杨春盛，张玉祥（西安近代化学所７１００６１）引言制备火药使用的硝化棉，需经醇醚溶剂溶解后胶化，对所使用的乙醇规定了质量标准。醇中的酸含量不能超过某一定值。要测醛含量需要乙醇的标准物质作参比。以往所使用的乙醛标准物质都是由前苏... Preparation of acetaldehyde standard material Bai Guiling, Yang Chunsheng, Zhang Yuxiang (Xi’an Institute of Modern Chemistry, 710061) Introduction Preparation of gunpowder used nitrocellulose, to be dissolved in alcohol ether solvent after the gel, the quality of ethanol used to provide the standard. The acid content of the alcohol can not exceed a certain value. To test the aldehyde content of ethanol reference material for reference. Acetaldehyde standard substances used in the past are from the former Su ...