磷石膏中附着水、结晶水快速测定方法  

Rapid determination method for attached and crystalline water in phosphogypsum

作　　者：陈鑫 CHEN Xin(Yunnan Three Circles-Sinochem Fertilizers Co.,Ltd.,Kunming 650000,China)

机构地区：[1]云南三环中化化肥有限公司,云南昆明650000

出　　处：《磷肥与复肥》2024年第5期38-40,共3页Phosphate & Compound Fertilizer

摘　　要：研究水分仪测定磷石膏中附着水、结晶水含量的方法,优化测定条件,测定结果与GB/T 5484—2012中干燥差减法相吻合,相对标准偏差0.32%~0.62%,准确度高,精密性好。该方法自动化程度高,在优化的条件下,单个样品测定耗时仅15~45 min,解决了传统标准测定方法耗时长、分析误差大的问题,满足磷石膏堆存、处理、利用中质量控制要求。The determination method for attached water and crystalline water in phosphogypsum by a moisture meter is researched,the measurement conditions are optimized,and the measurement results are consistent with the drying difference method in GB/T 5484—2012,with a relative standard deviation of 0.32%-0.62%,it has high accuracy and good precision.This method has a high degree of automation,under optimized conditions,the determination time for a single sample is only 15-45 minutes,solving the problems of long time consumption and large analysis errors in traditional standard determination methods.It meets the quality control requirements for the storage,treatment and utilization of phosphogypsum.

关 键 词：磷石膏 附着水 结晶水 快速测定 

分 类 号：O6527[理学—分析化学] Q177.3[理学—化学]