Deprecated: Function split() is deprecated in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/goods.php on line 366 Strict Standards: Non-static method cls_image::gd_version() should not be called statically in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/lib_base.php on line 346
- 介绍: HNB是钙的金属指示剂,碱土金属离子、稀土金属离子、铀离子的比色试剂。HNB易溶于水和乙醇,HNB的水溶液在pH 7-12时呈蓝色,pH >13时呈红色,在pH 10且有钙离子存在时呈粉红色。碱土金属离子和稀土金属离子的检测范围分别为1-600 ppm和1-300 ppm。复合物的最大波长是650 nm。HNB也被用于UO2(II)的检测。据报道,HNB的质子解离常数为pKa4=6·44, pKa5=12·91 (?=0·1,24℃)。
- 储存条件: RT
- 用途: 金属滴定指示剂,用于碱土金属离子, 稀土金属离子的检测
Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422 Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422 Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422 Strict Standards: Only variables should be passed by reference in /home/hualanchemlhfu9a8l2a2n4cshvetm/wwwroot/includes/cls_template.php on line 422