碘化钙配方 - 结构、性质、用途、示例问题
钙 (Ca) 是一种对包括人在内的生物很重要的物质。它是身体中最丰富的矿物质,也是健康的基础。我们想要消耗特定量的钙来组装和保持坚固的骨骼以及大脑和身体不同部位之间的声音对应。
碘化物粒子是粒子 I – 。具有适当氧化态-1的碘的化合物称为碘化物。在日常生活中,碘化物通常作为碘盐的一部分出现,许多州都有订购。它可能是一种化合物、药物和饮食增强剂。此外,在辐射危机中,它很可能是一种药物。当使用特定种类的放射性药物时,它还熟悉保护甲状腺。碘化物可能是卤化物阴离子和单原子碘。
碘化钙
碘化钙是一种无机化合物,由钙和碘元素组成。碘化钙可以通过使用氧化钙、碳酸钙或氢氧化钙中的任何一种与盐酸来形成。碘化钙是用于药物和摄影的化合物。钙 (Ca) 是一种碱土金属中的成分。它是人体中的金属成分,也是地球覆盖物中第五丰富的成分。在任何情况下,钙通常不会在自由状态下发生,尽管它的混合物通常是循环的。一种这样的钙化合物是石灰,例如氧化钙,CaO。
人体含有 2% 的钙,其主要来源是牛奶、奶制品、鱼和青翠的蔬菜。碘化钙是一种无机化合物。它在水中具有极强的易潮解性和极强的溶解性。它的性质类似于氯化钙等同类盐的性质。广泛地对摄影有用。作为碘的源泉,它在猫科动物食物中也很有价值。
碘化钙配方
钙与碘气反应生成碘化钙化合物。该反应在 200-400°C 的温度下进行。其化学方程式为:
Ca + I2 → CaI2
碘化钙的结构
碘化钙的化学式是CaI 2 。 CaI 2的分子量为 293.89 克/摩尔。
碘化钙的物理性质
- 它的颜色是白色的。
- 它的熔点是779°C。
- 易溶于丙酮和酒精。
- 它的沸点是1100°C。
- 其酸反应会释放碘化氢。它的脱水化合物是CaI 2 。 2H 2 O,分子量为330.02。
- 多用于试剂、摄影、制药等行业的分析。
碘化钙的化学性质
- 用纯金属钠还原碘化钙,
CaI2 + 2 Na → 2NaI + Ca
- 碘化钙可以通过将碳酸钙、氧化钙或氢氧化钙与氢碘酸结合形成,
CaCO3 + 2 HI → CaI2 + H2O + CO2
CaO + 2HCl → CaCl2 + H2O
Ca(OH)2 + 2 HI → CaI2 + 2H2O
- 碘化钙与空气中的氧气和二氧化碳缓慢反应,生成碘。
2CaI2 + 2CO2 + O2 → 2CaCO3 + 2I2
碘化钙的用途
- 碘化钙用于药物合成等药物,以白色粉末的形式提供。
- 它用于摄影。
- 碘化钙被用作富含碘的猫的食物。
示例问题
问题1:碘化钙的分子量是多少?
回答:
Molecular weight of CaI2 is:
= 40.078 + 2 × 126.90447
= 293.88694 gram per mole.
Thus, the molecular weight of Calcium Iodide 293.88694 gram per mole.
问题二:碘化钙有哪些健康危害?
回答:
It might make eye disturbance and harm a few people. It might cause aggravation of the skin on contact in certain people. In the event that unreasonable centralisation s of it are breathed in, harm to the circulatory or sensory systems or kidney harm is conceivable.
Its drawn out openness might cause changes in lung work for example pneumoconiosis. Its great side effects are shortness of breath and lung shadows show on X-beam. Iodides might lead to nearby unfavourably susceptible responses, for example, hives, crack of skin veins, and agony in joints. Expanding and aggravation of the throat, bothered and enlarged eyes and lung enlarging may likewise happen. Expanding of the glottis, requiring a tracheotomy has been accounted for.
问题3:碘化钙溶于水吗?
回答:
Calcium Iodide is highly soluble in water, the colourless deliquescent is also soluble in acetones nd alcohols alongwith being soluble in water. When calcium iodide is dissolved in water, it dissociates, which means, that the ions dissolve.
问题4:碘化钙中有多少电子转移?
回答:
Calcium iodide (CaI2) is an ionic bond, which means that electrons are transferred. In order for Ca to become the ion Ca2+, the calcium atom must lose 2 electrons. (Electrons have a negative charge, so when an atom loses 2 electrons, its ion becomes more positive.)
问题5:碘化钙有什么键?
回答:
Calcium Iodide is Ionic bond, where electrons are transferred. For
Ca to turn into the ion Ca2+, the calcium molecule should lose 2 electrons. (Electrons have a negative charge, so when a particle loses 2 electrons, its particle turns out to be more certain.) For I to turn into the particle I–, the iodine molecule should acquire 1 electron. (At the point when a particle acquires an electron, its particle will be more negative.)
Now for calcium iodide is CaI2, there are 2 iodine particles present. This appears to be legit in light of the fact that the iodine particle has a charge of – 1, so two iodine particles must be available to counteract the +2 charge of the calcium particle.
Thus, the calcium particle moves 2 valence electrons, one to every iodine molecule, to shape the ionic bond.