摘要
介绍了蒸馏法和甲醛法测定高氯酸铵的实验。实验结果表明,采用蒸馏法的测定结果高于甲醛法的测定结果。通过实验数据对比,发现蒸馏法和甲醛法测定的差值在0.35%-0.22%,说明这两种方法确实存在一定差异。提出了影响测定结果准确性的因素,指出产品中的微量游离酸可能是造成测定结果偏低的原因,并指出测定过程中应注意的问题。
Experiment on determining content of ammonium perchlorate by distillation method and formaldehyde me-thod was made.Results showed the determination result made by distillation method was higher than that of by distillation method.Through comparison of experiment data,it was found that the determining difference between distillation method and formaldehyde method was at 0.35%~0.22%.It was proved that the two methods had a certain difference indeed.Factors influencing determination accuracy were put forward.It was pointed out that the trace free acids may be the cause that led to determination result at a low side.Problems should be paid attention in determination were also proposed.
出处
《无机盐工业》
CAS
北大核心
2010年第8期60-62,共3页
Inorganic Chemicals Industry
关键词
高氯酸铵
蒸馏法
甲醛法
ammonium perchlorate
distillation method
formaldehyde method
