Machlan Lawrence A, Hague John L, Meros Edward J
J Res Natl Bur Stand A Phys Chem. 1960 Mar-Apr;64A(2):181-184. doi: 10.6028/jres.064A.019. Epub 1960 Apr 1.
A procedure is described for the determination of aluminum in high temperature alloys. Aluminum is selectively precipitated with 8-hydroxyquinoline from an ammoniacal solution of the alloy containing citrate and cyanide as complexing agents. The precipitate is ignited under oxalic acid, the oxides fused, and dissolved in acid. A caustic precipitation is made, an aliquot of the filtrate treated with hydrogen peroxide, and the aluminum precipitated with 8-hydroxyquinoline. The aluminum hydroxyquinolate is filtered on a fritted-glass crucible, dried, and weighed.
本文描述了一种测定高温合金中铝含量的方法。在含有柠檬酸盐和氰化物作为络合剂的合金氨溶液中，铝与8-羟基喹啉选择性沉淀。沉淀在草酸存在下灼烧，氧化物熔融后用酸溶解。进行碱沉淀，取滤液的一份用过氧化氢处理，然后用8-羟基喹啉沉淀铝。羟基喹啉铝盐在烧结玻璃坩埚上过滤、干燥并称重。
