判断题
凡是以碳酸钙为主要成分的原料叫石灰质原料。
发布日期：2021-05-02
对
错
试题解析
主要成分
主要成分，由Hush！演唱歌曲。
- 歌曲
- 主要成分
- 发行日期
- 2013年12月06日
- 所属专辑
- 异常现象
- 语种
- 普通话
- 歌手
- Hush！
碳酸钙
碳酸钙是一种无机化合物，化学式为CaCO₃，是石灰石、大理石等的主要成分。碳酸钙基本上不溶于水，溶于盐酸（与盐酸反应）。它是地球上常见物质之一，存在于霰石、方解石、白垩、石灰岩、大理石、石灰华等岩石内，亦为某些动物骨骼或外壳的主要成分。碳酸钙也是重要的建筑材料，工业上用途甚广。
- 中文名
- 碳酸钙
- 化学式
- CaCO
- CAS登录号
- 471-34-1
- 熔点
- 1339 ℃
- 密度
- 2.93 g/cm
- 应用
- 用于造纸、冶金、玻璃、制碱、橡胶、医药、颜料、有机化工等部门
- 危险性符号
- R36/37/38；R41
- 吸潮能力
- 有轻微的吸潮能力
- 折射率
- 1.49
- 线性热膨胀系数
- 11.7×10
- 外文名
- Calcium carbonate
- 分子量
- 100.0869
- EINECS登录号
- 207-439-9
- 水溶性
- 不溶于水
- 外观
- 白色固体
- 安全性描述
- S26；S36/37/39；S37/39
- 危险性描述
- Xi
- 遮盖力
- 有较好的
- 比热容
- 0.836～0.8951 J/（g·℃）（0～100℃）
- 电解质类型
- 强电解质
原料
原料是指没有经过加工制造的材料，如矿产品和农产品，其价格往往是标准价格或按质论价。
- 中文名
- 原料
- 拼音
- yuán liào
- 外文名
- Raw material
- 意义
- 原料指没有经过加工制造的
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