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钨合金中锰的测定方法,在国内尚未见报导。因大量钨(90%以上)的存在,若在溶样时加入掩蔽剂,如酒石酸、柠檬酸掩蔽钨,则锰也同时被掩蔽;若分离大量钨基体,则试验周期长,方法复杂。本方法成功地用过量的磷酸掩蔽大量钨使不至生成钨酸沉淀,可直接测定钨合金中大于0.02%的锰。在高酸度下,硫-磷混合酸介质中采用高碘
Determination of manganese in tungsten alloy, has not been reported in China. Due to the presence of a large amount of tungsten (over 90%), if masking agents such as tartaric acid and citric acid are used to mask the tungsten when the samples are dissolved, the manganese is masked at the same time; if a large amount of tungsten matrix is separated, the test period is long and the method is complex. The method succeeded in using an excessive amount of phosphoric acid to mask a large amount of tungsten so as not to generate tungstic acid precipitates and directly measure more than 0.02% of manganese in the tungsten alloy. High acidity, sulfur-phosphorus mixed acid medium with high iodine