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

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.