多选题
下列胶体溶液带负电荷的有（）
发布日期：2020-12-11
淀粉浆
海藻酸钠
明胶溶液
胃蛋白酶合剂
阿拉伯胶溶液
试题解析
胶体溶液
胶体溶液是指一定大小的固体颗粒药物或高分子化合物分散在溶媒中所形成的溶液。其分散体系的质点一般在1～100纳米之间，分散媒大多数为水，少数为非水溶媒。固体颗粒以多分子聚集体（胶体颗粒）分散于溶媒中，构成多相不均匀分散体系（疏液胶）高分子化合物以单分子形式分散于溶媒中，构成单相均匀分散体系引（亲液胶）。这类溶液具有其特有性质，它既不同于低分子分散系－－真溶液（分散相质点小于1纳米），也不同于粗分散系－－混悬液（分散相质点大于100纳米）。胶体溶液在药剂学中应用甚广，尤其动、植物药在制剂过程中更与胶体溶液有密切关系。
- 中文名
- 胶体溶液
- 质点
- 1～100纳米之间
- 应用
- 药剂学
- 状态
- 液体
- 外文名
- colloidal solution
- 体系
- 多相
- 特性
- 易溶于相关溶液中
负电
人们把用毛皮摩擦过的橡胶棒带的电叫负电，用“-”表示。
- 中文名
- 负电
- 读音
- Fùdiàn
- 外文名
- negative electricity
- 释义
- 人们把用毛皮摩擦过的橡胶棒带的电称为负电，用“-”表示。与
荷的
荷的是一个汉语词汇，读音为hé de ，即莲子。出自宋· 欧阳修 《渔家傲》。
- 注音
- ㄏㄜˊ ㄉㄜ
- 读音
- hé de
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