| 雄黄与光反应的研究进展 |
| |
| 关键词:realgar light reaction products reaction process |
| 基金项目:财政部“地质遗迹标本采集、购置与综合研究”项目(编号: 121113000000160034-5) |
|
| 摘要点击次数: 2205 |
| 全文下载次数: 3504 |
| 摘要: |
| Progress in the Study of Light Induced Alteration of Realgar |
| In recent years mineral crystals have been collected by more and more people in China. Because of its vibrant color, brilliant natural luster and incredible sculptural qualities, realgar crystal is popular for geological museums and private mineral collectors. However, when exposed to sunlight, unprotected realgar develops a surface coating of friable yellow material. Due to their photochemical sensitivity, arsenic chalcogenides are important materials for use in optics. A lot of research work on light induced alteration of realgar was carried out in foreign countries. Reaction products of realgar and light are pararealgar, arsenolite and χ-phase. Realgar is indirectly transformed into pararealgar via the As4S5 molecule. Realgar is a kind of Chinese traditional medicine, but the As2O3 in realgar is toxic. The content of As2O3 in realgar is related to such factors as high temperature and light. A lot of research work on composition of realgar as Chinese traditional medicine has been carried out, but the study of light induced alteration of realgar should be strengthened in China. |
| ZHANG Xi-huan.2017.Progress in the Study of Light Induced Alteration of Realgar[J].Acta Geoscientica Sinica,38(2):223-228. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
|
|
|
|
|