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硝酸コバルト 六水和物
硝酸コバルト(II)六水和物 · 二硝酸コバルト六水和物 · 硝酸コバルト 六水和物 · 硝酸コバルト(Ⅱ)六水和物 · 硝酸コバルト（II）?六水和物 · 硝酸コバルト(II)六水和物,3N5 · 硝酸コバルト(II)六水和物 ACS REAGENT,≥98% · 硝酸コバルト(II)六水和物 PURISS. P.A.,ACS REAGENT,NI 0.001%,≥99.0% (KT)
識別子と物理属性
| CAS No. | 10026-22-9 |
|---|---|
| 分子式 | Co(NO3)2 . 6H2O |
| 平均分子量 | 291.04 g/mol |
| 単同位体質量 | 290.97221882 g/mol |
| SMILES | O.O.O.O.O.O.O=[N+]([O-])[O-].O=[N+]([O-])[O-].[Co+2] |
| InChIKey | QGUAJWGNOXCYJF-UHFFFAOYSA-N |
| PubChem CID | 24821 |
| ChEBI | CHEBI:86214 |
| DTXSID | DTXSID3073135 |
| 現地名 | 硝酸コバルト 六水和物 |
化学・物理的性質
| 極性表面積 | 132 |
|---|---|
| 水素結合供与体数 | 6 |
| 水素結合受容体数 | 12 |
| 回転可能結合数 | 0 |
| 重原子数 | 15 |
| 形式電荷 | 0 |
| 複雑度 | 18.8 |
| 物質分類 | Metals -> Metals, Inorganic Compounds |
| 密度 | 1.88 g/cm³1.88 @25 °C |
| 溶解度 | Solubility in water, g/100ml at 0 °C: 133.82170g/リットル134g/100mL |
| Decomposition | 74 °C |
| 融点 | 55 °C55 °C(lit.) |
| Physical Description | Red deliquescent solid[Merck Index] Red crystalline powderOdorless[Alfa Aesar MSDS]RED CRYSTALS. |
| 屈折率 | 1.52 |
| 貯蔵条件 | Store at +5°C to +30°C. |
| 外観・状態 | ウェット結晶凝集体 |
| 色 | 赤からピンクがかった茶色 |
| 比重 | 1.87 |
| pH | 4.0 (100g/l, H2O, 20℃) |
| Merck | 14,2444 |
| 安定性 | 安定。強力な酸化剤 - 還元剤とは相容れない。 |
| InChI | 1S/Co.2NO3.6H2O/c2*2-1(3)4/h6*1H2/q+22*-1 |
| InChIKey | QGUAJWGNOXCYJF-UHFFFAOYSA-N |
| SMILES | O.O.O.O.O.O.[Co++].[O-][N+]([O-])=O.[O-][N+]([O-])=O |
| CAS データベース | 10026-22-9(CAS DataBase Reference) |
| EPAの化学物質情報 | Cobalt nitrate hexahydrate (10026-22-9) |
化学的特性
Red crystal, deliquescent in most air
安全性と法規制
| GHS 分類 | DangerH350: May cause cancer [Danger Carcinogenicity]P203, P280, P318, P405, and P501 (click each P-code to see the statement)H360: May damage fertility or the unborn child [Danger Reproductive toxicity] |
|---|---|
| 規制情報 | Chemical: Nitric acid, cobalt(2+) salt, hexahydrateCobalt (II) nitrate, hexahydrate: Does not have an individual approval but may be used under an appropriate group standard |
| その他の安全情報 | IMAP assessments - Cobalt nitrate: Human health tier II assessment |
| 火災危険 | Not combustible but enhances combustion of other substances. Gives off irritating or toxic fumes (or gases) in a fire. Risk of fire and explosion on contact with combustible substances. |
| 有害性の概要 | Causes somnolence, diarrhea, and weight loss in oral lethal-dose studies of rats[RTECS] A fire hazard on contact with combustible materialsA skin, eye, and respiratory tract irritantMay cause skin sensitization and asthmaMay have effects on the heart, thyroid, and bone marrow (cardiomyopathy, goiter, and polycythemia)Possibly toxic to reproduction and teratogenic, based on animal studies[ICSC] An oxidizing agent that may intensify fireAn irritantMay cause skin and respiratory sensitization[Alfa Aesar MSDS] See Cobalt. See NITRATES and NITRITES. |
| Chemical Dangers | Decomposes on heating. This produces toxic gases including nitrogen oxides. Reacts with combustible substances. This generates fire hazard. |
| Hazard Classes and Categories | Acute toxicity - category 4Respiratory sensitization - Category 1Reproductive toxicity - Category 1BCarcinogenicity - Category 1B |
| 消火 | In case of fire in the surroundings, use appropriate extinguishing media. |
| 応急処置措置 | Fresh air, rest. Refer for medical attention.First rinse with plenty of water for at least 15 minutes, then remove contaminated clothes and rinse again.First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then refer for medical attention.Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention . |
| 安全保管 | Separated from combustible substances and reducing agents. Well closed. |
| 暴露管理・個人防護 | Biological Exposure Indices (BEI) [ACGIH] - Cobalt in urine = 15 ug/Lsample at end of shift at end of workweek |
| 漏出処分 | Personal protection: particulate filter respirator adapted to the airborne concentration of the substance. Do NOT let this chemical enter the environment. Sweep spilled substance into covered containers. If appropriate, moisten first to prevent dusting. Carefully collect remainder. Then store and dispose of according to local regulations. Do NOT absorb in saw-dust or other combustible absorbents. |
| Eye Prevention | Wear safety goggles or eye protection in combination with breathing protection if powder. |
| Fire Prevention | NO contact with combustible substances or reducing agents. |
| Inhalation Risk | A harmful concentration of airborne particles can be reached quickly when dispersed, especially if powdered. |
| Skin Prevention | Protective gloves. Protective clothing. |
| Exposure Prevention | AVOID ALL CONTACT! IN ALL CASES CONSULT A DOCTOR! |
| Ingestion Prevention | Do not eat, drink, or smoke during work. Wash hands before eating. |
| Inhalation Prevention | Use local exhaust or breathing protection. |
| 有害作用 | Skin Sensitizer - An agent that can induce an allergic reaction in the skin. |
| 暴露経路 | The substance can be absorbed into the body by inhalation of its aerosol and by ingestion. |
| Signs and Symptoms | Sore throat. Cough. Shortness of breath.Redness.Redness. Pain.Abdominal pain. Nausea. Vomiting. |
| 水環境危害等級（WGK） | 2 |
| TSCA 収載状態 | Yes |
| RTECS 番号 | QU7355500 |
| 輸送番号（UN） | UN 1477 5.1/PG 2 |
| 毒性 | LD50 orally in rats: 691 mg/kg (Speijers) |
| PRTR法 | 1-132 |
| 税関コード | 28342920 |
| 危険文句（R） | 8-22-40-43-50/53-42/43-36/37/38-68-20-60-49 |
| 安衛法 | 特定化学物質障害予防規則:第2類物質,57,57-2 |
| 危険表示 | O,Xn,N,T |
| 安全措置（S） | 17-36/37-60-61-45-36/37/39-26-22-53 |
| 危険等級 | 5.1Acute Tox. 4 OralAquatic Acute 1Aquatic Chronic 1Carc. 1B InhalationEye Dam. 1Muta. 2Ox. Sol. 2Repr. 1BResp. Sens. 1Skin Sens. 1STOT RE 2 Inhalation |
| 包装等級 | III |
| 貯蔵分類 | 5.1B - Oxidizing hazardous materials |
| 危険度評価（NFPA 704基準/消防庁データ） | 人的[青]=1 |
用途
用途
触媒、顔料
用途
コバルト系触媒の原料
使用
Preparation of cobalt standard solutions.
一般的な説明
Cobalt(II) nitrate hexahydrate (Co(NO3)2·6H2O) is the hydrated cobalt salt. Its step-wise thermal degradation has been investigated. It affords anhydrous cobalt(II)nitrate as decomposition product.
製法・合成法
製造方法
The red hygroscopic hexahydrate Cu(NO3)2.6H2O crystallizes from aqueous solutions of cobalt bases in dilute nitric acid at room temperature. It becomes the trihydrate when heated at 56° ; at higher temperatures decomposition occurs.
純化方法
Crystallise the nitrate from water (1mL/g), or ethanol (1mL/g), by partial evaporation. After 3 crystallisations from H2O it contains: metal (ppm) As (8), Fe (1.2), K (1), Mg (4), Mn (4), Mo (4), Na (0.6), Ni (18), Zn (1.6). The hexahydrate gives the pink anhydrous salt by the action of HNO3 and N2O5. The hexahydrate melts at ~55o to give a red liquid which decomposes on further heating at 100-105o to form Co3O4.