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銀容量法可以應用於鎢酸的测定。鎢酸銀可以在鎢酸鈉舆銀氨複離子的混合溶液中。藉加入稀硝酸使pH值到達7.0—7.5時而沉澱完全。分析誤差在±0.2%以內。本文也討論了pH值對鎢酸測定的影響。硫酸鈉的存在,如不超過鎢酸鈉量的100倍時,並不影響鎢酸的测定。氧化鈉与鎢酸鈉的混合液,祇可應用本方法求得氯離子与鎢酸根的總量。
Silver volume method can be applied to the determination of tungstic acid. The silver tungstate can be mixed in a solution of sodium tungstate in silver ammonia complex ion. By adding dilute nitric acid pH value reached 7.0-7.5 and precipitation completely. Analysis error is within ± 0.2%. This article also discusses the effect of pH on the determination of tungstic acid. The presence of sodium sulfate, if not more than 100 times the amount of sodium tungstate, does not affect the determination of tungstic acid. The mixed solution of sodium oxide and sodium tungstate can only be obtained by the method of obtaining the total amount of chloride ions and tungstate.