銀(II)オキシド
酸化銀(II) · 銀(II)オキシド · 酸化銀(Ⅱ) · 酸化銀 · 酸化銀 (II) · 酸化銀(II) (99.9%-Ag) · 酸化銀(II), 98% · 酸化銀(II), 99.9% (metals basis), Ag 86.6% min
識別子と物理属性
| CAS No. | 1301-96-8 |
|---|---|
| 分子式 | AgO |
| 平均分子量 | 123.868 g/mol |
| SMILES | [O]=[Ag] |
| InChIKey | OTCVAHKKMMUFAY-UHFFFAOYSA-N |
| PubChem CID | 92152 |
| EC No. | 215-098-2 |
| 現地名 | 銀(II)オキシド |
化学・物理的性質
| 極性表面積 | 17.1 |
|---|---|
| 水素結合供与体数 | 0 |
| 水素結合受容体数 | 1 |
| 回転可能結合数 | 0 |
| 重原子数 | 2 |
| 形式電荷 | 0 |
| 複雑度 | 2 |
| 物質分類 | Metals -> Metals, Inorganic Compounds |
| Physical Description | Charcoal-grey solidPractically insoluble in water[Merck Index] Dark grey odorless powderReacts with water[Alfa Aesar MSDS] |
| 融点 | 100 °C |
| 密度 | 7.483 g/mL at 25 °C |
| 貯蔵条件 | 2-8°C, protect from light, stored under nitrogen |
| 溶解度 | soluble in alkaline solutionsreacts with acid solutions不溶性 |
| 外観・状態 | 粉 |
| 比重 | 7.483 |
| 色 | グレーからブラック |
| 比熱容量 | Cp(crystal): 0.71 J/(g·K), at 25℃ |
| Merck | 14,8522 |
| 晶系 | 単斜 |
| 空间群 | P21/c |
| 晶格常数 | a/nmb/nmc/nmα/oβ/oγ/oV/nm30.5850.3480.5590107.5900.1068 |
| CAS データベース | 1301-96-8(CAS DataBase Reference) |
| EPAの化学物質情報 | Silver(II) oxide (1301-96-8) |
化学的特性
grey to black powder
安全性と法規制
| GHS 分類 | This chemical does not meet GHS hazard criteria for 2.2% (1 of 46) of reports.DangerH272 (97.8%): May intensify fireoxidizer [Danger Oxidizing liquidsOxidizing solids]P210, P220, P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 46 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies. |
|---|---|
| 有害性の概要 | A silver(I)-silver(III) oxideA strong oxidizing agentA severe skin, eye, respiratory tract, and mucous membrane irritant[Merck Index] An oxidizing agent that may cause fire on contact with combustible materialsCauses burnsInhalation may cause corrosive injuries to upper respiratory tract and lungs[Alfa Aesar MSDS] See Silver. |
| Hazard Classes and Categories | Ox. Sol. 2 (97.8%) |
| 暴露管理・個人防護 | 0.01 [mg/m3], inhalable fraction, as Ag (salts)[German Research Foundation (DFG)] |
| Treatment | EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration. |
| 健康影響 | Silver itself is not toxic to humans, but most silver salts are. In large doses, silver and compounds containing it can be absorbed into the circulatory system and become deposited in various body tissues, leading to argyria, which results in a blue-grayish pigmentation of the skin, eyes, and mucous membranes. Argyria is rare, and although, so far as known, this condition does not otherwise harm a person's health, it is disfiguring and usually permanent. Mild forms of argyria are sometimes mistaken for cyanosis. (L809) |
用途
解説
それに対して一酸化銀は、灰黒色の粉末です。銀と (O3) との反応のほか、硝酸銀水溶液とペルオキソ二硫酸塩である(NH4)2S2O8との反応によって生成されます。
用途
分析用試薬 : 酸化剤としてマンガン(II)、クロム(III)、セリウム(III)をそれぞれマンガン(VII)、クロム(IV)、セリウム(IV)にまで酸化するとき用いる。分析で用いられる酸化剤の中では最も強い酸化剤である。
使用
In the manufacture of silver oxide-zinc alkali batteries.
使用用途
一酸化銀は、酸化剤や分析試薬等の用途に用いられます。さらに、負極に、正極に酸化銀、にアルカリ水溶液を使用した小型一次電池である酸化銀－亜鉛アルカリ電池にも利用されています。
製法・合成法
純化方法
Silver (II) oxide [1301-96-8] M 123.9, m > 1 0 0o(dec), 7.22. It is soluble in 40,000 parts of H2O, and should be protected from light. Stir it with an alkaline solution of potassium peroxysulfate (K2S2O8) at 85-90o. The black AgO is collected, washed free from sulfate with H2O made slightly alkaline and dried in air in the dark. [Hammer & Kleinberg Inorg Synth IV 12 1953.]