### 铅与硝酸反应及影响因素

• 发布日期:2017-10-27
• 通讯作者: 李健生,张澜萃 E-mail:l_js212@163.com;zhanglancui@lnnu.edu.cn
• 基金资助:
辽宁师范大学本科教学改革研究项目(LS201571);辽宁师范大学教师指导本科生科研训练项目(cx20160203)

### The Reaction of Lead with Nitric Acid and Its Influencing Factors

Mei-Da CAO,Jian-Sheng LI*(),Jing DU,Lan-Cui ZHANG*()

• Published:2017-10-27
• Contact: Jian-Sheng LI,Lan-Cui ZHANG E-mail:l_js212@163.com;zhanglancui@lnnu.edu.cn
• Supported by:
辽宁师范大学本科教学改革研究项目(LS201571);辽宁师范大学教师指导本科生科研训练项目(cx20160203)

Abstract:

The reaction of lead with nitric acid is very complicated. In inorganic chemistry textbooks and the related materials, the descriptions of the reaction between lead and nitric acid are not entirely identical, which will not be beneficial for students to master basic properties of lead in the study of inorganic chemistry. Aiming at this problem in inorganic chemistry teaching materials, through a lot of experiments, we studied the conditions of the reaction between lead and nitric acid, including the effects of nitric acid concentration, reaction temperature and reaction time, and investigated the solubility changes of lead nitrate in different concentrations of nitric acid. The reaction products of lead with concentrated nitric acid were characterized by infrared spectroscopy (IR) and X-ray powder diffraction (XRD). The essence that lead is easily soluble in dilute nitric acid and slightly soluble in concentrated nitric acid is clarified.

MSC2000:

• G64