| 不同形态SiO_2的性质研究 |
| |
| 引用本文： | 温和瑞.不同形态SiO_2的性质研究[J].赣南师范学院学报,1994(5). |
| |
| 作者姓名： | 温和瑞 |
| |
| 作者单位： | 赣南师院化学系 |
| |
| 摘 要： | 本文比较了晶态ＳｉＯ＿２和无定形ＳｉＯ＿２的性质。结果表明，无定形ＳｉＯ＿２的溶解度大于α－石英。在ｐＨ＞３的范围内，ＳｉＯ＿２粒子表面带负电荷，α－石英粒子表面ξ电位高于无定形ＳｉＯ＿２粒子，ＥＳＲ谱表明，α－石英晶体被研磨后，粉尘粒子表面产生了自由基，而研磨无定形ＳｉＯ＿２则无自由基产生。α－石英粉尘粒子表面ξ电位大，粒子表面存在自由基与它的细胞毒性大是相一致的。
|
| 关 键 词： | 硅肺，二氧化硅，细胞毒性 |
STUDY OF PROPERTY OF SILICA IN DIFFERENT FORMS |
| |
| Wen Herui.STUDY OF PROPERTY OF SILICA IN DIFFERENT FORMS[J].Journal of Gannan Teachers' College(Social Science(2)),1994(5). |
| |
| Authors: | Wen Herui |
| |
| Institution: | Department of Chemistry |
| |
| Abstract: | The property of c ystalline SiO_2 and amorpbous SiO_2 is studied by detecting the surface property of SiO_2 partical and the action of SiO_2 dust to the alveolar macrophage.The results are mainlyas follows.The solubility of amorphous SiO_2 is higher than that of α quartz,In the ranger of PH>3.surface of SiO_2 practicle changes negative change,The electric potentials of α quaroz is higher than that of amorphous SiO_2 ESR spectrum shows that grinding α quartz in air products free radical.but grinding amorphous SiO_2 don't product free radical.High electric potentials and free radical of α quartz particles surface accord with its great cytotoxicity. |
| |
| Keywords: | silicosis silica cytotoxicity |
| 本文献已被 CNKI 等数据库收录！ |
