摘 要：浅析KMnO4含量测定原理及测定方法，以及实际操作中酸度、温度、滴定速度对测定结果的影响。　　关键词：草酸钠；酸度；温度；滴定速度......

Microarc oxidation (MAO) coatings were prepared on 2024 aluminum alloy in a Na_2SiO_3-KOH electrolyte with KMnO_4 additi......