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HCID 271作成日：2026年10月25日
Calcium Cation
カルシウムイオン · CALCIUM ION · Calcium ions · Calcium cation · Calcium(2+)ions · Unii-2m83C4R6zb · Calcium, ion (ca2+) · CALCIUM ION STANDARD
https://huagongshe.com/ja/chemical/271
識別子と物理属性
| CAS No. | 14127-61-8 |
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| 分子式 | Ca+2 |
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| 平均分子量 | 40.08 g/mol |
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| 単同位体質量 | 39.96149382 g/mol |
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| SMILES | [Ca+2] |
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| InChIKey | BHPQYMZQTOCNFJ-UHFFFAOYSA-N |
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| PubChem CID | 271 |
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| ChEBI | CHEBI:29108 |
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| DTXSID | DTXSID7037638 |
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化学・物理的性質
| 極性表面積 | 0 |
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| 水素結合供与体数 | 0 |
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| 水素結合受容体数 | 0 |
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| 回転可能結合数 | 0 |
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| 重原子数 | 1 |
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| 形式電荷 | 2 |
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| 複雑度 | 0 |
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| 融点 | 850 °C |
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| Physical Description | Solid |
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| 密度 | 1.04 g/mL at 20 °C |
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| 外観・状態 | 液体 |
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| Merck | 13,1687 |
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| 主な用途 | 環境食品および飲料 |
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安全性と法規制
| 毒性の概要 | Calcium plays a vital role in the anatomy, physiology and biochemistry of organisms and of the cell, particularly in signal transduction pathways. More than 500 human proteins are known to bind or transport calcium. The skeleton acts as a major mineral storage site for the element and releases Ca2+ ions into the bloodstream under controlled conditions. Circulating calcium is either in the free, ionized form or bound to blood proteins such as serum albumin. Parathyroid hormone (secreted from the parathyroid gland) regulates the resorption of Ca2+ from bone. Calcitonin stimulates incorporation of calcium in bone, although this process is largely independent of calcitonin. Although calcium flow to and from the bone is neutral, about 5 mmol is turned over a day. Bone serves as an important storage point for calcium, as it contains 99% of the total body calcium. Low calcium intake may also be a risk factor in the development of osteoporosis. The best-absorbed form of calcium from a pill is a calcium salt like carbonate or phosphate. Calcium gluconate and calcium lactate are absorbed well by pregnant women. Seniors absorb calcium lactate, gluconate and citrate better unless they take their calcium supplement with a full breakfast. The currently recommended calcium intake is 1,500 milligrams per day for women not taking estrogen and 800 milligrams per day for women on estrogen. There is close to 300 milligrams of calcium in one cup of fluid milk. Calcium carbonate is currently the best and least expensive form of calcium supplement available. |
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| Carcinogen Classification | No indication of carcinogenicity to humans (not listed by IARC). |
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| 水環境危害等級（WGK） | 1 |
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| 輸送番号（UN） | UN 3264 8/PG 3 |
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| 危険文句（R） | 36/38-36/37/38-34 |
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| 危険表示 | Xi,C |
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| 安全措置（S） | 26-36-24/25-36/37-45-36/37/39 |
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| 危険等級 | 8 |
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| 包装等級 | III |
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| 貯蔵分類 | 12 - Non Combustible Liquids |
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