硫化银比浊法测定液氨中微量硫  

Determination of Trace Sulfur in Liquid Ammonia by Silver Sulfide Turbidimetry

作　　者：郭改花[1] 王培红[1] 李敏[1] 

机构地区：[1]河南中原大化集团有限责任公司,濮阳457004

出　　处：《化肥工业》2005年第1期61-62,共2页Chemical Fertilizer Industry

摘　　要：液氨样品经自然蒸发后,加甲醇蒸馏除去残液中溶解的氨,用硫化银比浊法测定微量硫。该方法准 确度较高,取得了满意的效果。The liquid ammonia sample, after natural evaporation, is distilled with the addition of methanol to remove the dissolved ammonia in the residual liquid. The trace sulfur is determined by silver sulfide turbidimetry. This method is high in accuracy and gives satisfactory results.

关 键 词：液氨 微量 蒸馏 甲醇 硫化银 比浊法 自然蒸发 银比 溶解 准确度 

分 类 号：TQ113[化学工程—无机化工] O122.7[理学—数学]