巧用烟卷做硫与铁反应的实验

• 作 者: 尤红翠
• 机 构: 武城县第二中学,
• 出 处: 中学化学教学参考
• 发表日期: 2013年06期
• 关键词: 实验药品 石棉网 托盘天平 硫粉 药匙 铁粉 颜色对比 火焰加热 药品使用 加边

一、实验药品和仪器托盘天平、卷烟1支、研钵、酒精灯、火柴、石棉网、药匙2个、普通漏斗、铁粉、硫粉。二、实验步骤1.用托盘天平称取硫粉和铁粉,并控制硫粉和铁粉的质量比为1:2～1:2.5。将两者在研钵中混合均匀备用。2.将卷烟中的烟丝抽出,保留过滤嘴。3.将混合好的粉末通过普通漏斗装入已掏空的烟

First, the experimental drugs and equipment tray balance, a cigarette, mortar, alcohol lamp, matches, asbestos net, medicine spoon 2, ordinary funnel, iron powder, sulfur powder. Second, the experimental steps 1. Weigh the pallet balance sulfur powder and iron powder, and control the sulfur powder and iron mass ratio of 1: 2 ~ 1: 2.5. The two in the mortar mixing evenly spare. 2. The tobacco in the cigarette out, keep the filter. 3. The mixed powder through a normal funnel into the hollowed-out smoke