This standard specifies a method for the determination of chlorine content in lithium carbonic acid and lithium hydroxide monohydrate. The applicable range is 0.0010%~ 0.10% of the amount of chlorine. The method of determination is to form a suspension by reacting chloride ions with silver ions in a nitric acid medium to form insoluble silver chloride. Absorbance measurement of silver chloride at a wavelength of 420 nm is used with a spectrophotometer to determine the chlorine content. Reagents include nitric acid, silver nitrate (AgNO3) solution, sodiumhydrate solution, p-nitrophenol indicator, etc. All reagents should be of superior purity, and the water used for testing should be secondary deionized water.
| Status | Active |
|---|---|
| CCS | H64 | ICS | 77.120.99 |
| Release Date | 2013-09-27 00:00:00 | Implementation Date | 2014-08-01 00:00:00 |