cobalt(II) tungstate | 10101-58-3

• 物质功能分类: 无机化工 - 氧化物和过氧化物 - 金属氧化物
• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 过渡金属氧阴离子化合物
• 英文名称: cobalt(II) tungstate
• 英文别名: cobalt tungstate；cobalt(2+);dioxido(dioxo)tungsten
• CAS: 10101-58-3
• 化学式: Co*O₄W
• 分子量: 306.841
• InChiKey: KLNIPFWTZXANST-UHFFFAOYSA-N

物化性质

• 熔点：
  1280 °C
• 密度：
  8,42 g/cm3
• 暴露限值：
  ACGIH: TWA 3 mg/m3; TWA 0.02 mg/m3NIOSH: TWA 5 mg/m3; STEL 10 mg/m3

计算性质

• 辛醇/水分配系数(LogP)：
  -2.62
• 重原子数：
  6
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  80.3
• 氢给体数：
  0
• 氢受体数：
  4

安全信息

• TSCA：
  Yes
• 安全说明：
  S26,S36/37/39
• 危险类别码：
  R20/21/22
• 储存条件：
  室温

SDS

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Section 1: Product Identification
Chemical Name: Cobalt (II) tungstate (99.9%-Co)
CAS Registry Number: 10101-58-3
Formula: CoWO4
EINECS Number: none
Chemical Family: metal tungstate
Synonym: Tungstic acid cobalt salt (1:1)

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Section 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 10101-58-3 100% 0.02mg/m3 (as Co) no data

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Section 3: Hazards Identification
Irritating to skin, eyes and respiratory tract. May be harmful if swallowed. Limited evidence of a carcinogenic
Emergency Overview:
effect.
Primary Routes of Exposure: Inhalation, skin, eyes
Eye Contact: Causes slight to mild irritation of the eyes.
Skin Contact: Causes slight to mild irritation of the skin. May cause dermatitis.
Inhalation: Irritating to the nose mucous membranes and respiratory tract.
Ingestion: No specific information is available on the physiological effects of ingestion. May be harmful if swallowed.
Acute Health Affects: Irritating to skin, eyes and respiratory tract.
Chronic Health Affects: No information available on long-term chronic effects. Limited evidence of a carcinogenic effect.
NTP: No
IARC: Yes
OSHA: No

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SECTION 4: First Aid Measures
Immediately flush the eyes with copious amounts of water for at least 10-15 minutes. A victim may need
Eye Exposure:
assistance in keeping their eye lids open. Get immediate medical attention.
Wash the affected area with water. Remove contaminated clothes if necessary. Seek medical assistance if
Skin Exposure:
irritation persists.
Remove the victim to fresh air. Closely monitor the victim for signs of respiratory problems, such as difficulty
Inhalation:
in breathing, coughing, wheezing, or pain. In such cases seek immediate medical assistance.
Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). Induce
Ingestion:
vomiting only if directed by medical personnel.

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SECTION 5: Fire Fighting Measures
Flash Point: not applicable
Autoignition Temperature: none
Explosion Limits: none
Extinguishing Medium: none required
If involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure self-contained
Special Fire Fighting Procedures:
breathing apparatus and full protective clothing.
Hazardous Combustion and None
Decomposion Products:
Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

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SECTION 6: Accidental Release Measures
Spill and Leak Procedures: Small spills can be mixed with powdered sodium carbonate or ground limestone and swept up.

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SECTION 7: Handling and Storage
Handling and Storage: Store material in a tightly sealed bottle away from moisture.

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SECTION 8: Exposure Controls and Personal Protection
Eye Protection: Always wear approved safety glasses when handling a chemical substance in the laboratory.
Skin Protection: Wear appropriate chemical resistant gloves and protective clothing.
Ventilation: If possible, handle the material in an efficient fume hood.
In the absence of adequate ventilation a respirator should be worn. The use of a respiratory requires a
Respirator:
Respirator Protection Program to be in compliance with 29 CFR 1910.134.
Ventilation: If possible, handle the material in an efficient fume hood.
Additional Protection: No additional protection required.

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SECTION 9: Physical and Chemical Properties
Color and Form: -100 mesh gray pwdr.
Molecular Weight: 306.78
Melting Point: no data
Boiling Point: no data
Vapor Pressure: no data
Specific Gravity: 8.42
Odor: none
Solubility in Water: Insoluble

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SECTION 10: Stability and Reactivity
Stability: air and moisture stable
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: none
Incompatibility: Active metals
Decomposition Products: none

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SECTION 11: Toxicological Information
RTECS Data: No specific information available on this product.
Carcinogenic Effects: Possible carcinogen (as Co)
Mutagenic Effects: no data
Tetratogenic Effects: no data

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SECTION 12: Ecological Information
Avoid release into the environment. Harmful to aquatic organisms. May cause long-tern adverse effects in the
Ecological Information:
aquatic environment.

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SECTION 13: Disposal Considerations
This material and its container must be disposed of as hazardous waste according to local, state and federal
Disposal:
regulations.

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SECTION 14: Transportation
Shipping Name (CFR): Non-hazardous
Hazard Class (CFR): NA
Additional Hazard Class (CFR): NA
Packaging Group (CFR): NA
UN ID Number (CFR): NA
Shipping Name (IATA): Non-hazardous
Hazard Class (IATA): NA
Additional Hazard Class (IATA): NA
Packaging Group (IATA): NA
UN ID Number (IATA): NA

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SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory.
SARA (Title 313): Title compound: see category code N096 for reporting
Second Ingredient: none

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SECTION 16 - ADDITIONAL INFORMATION
N/A

反应信息

• 作为反应物：
  描述：

  cobalt(II) tungstate 在 carbon black 作用下， 以 neat (no solvent) 为溶剂， 生成 cobalt tungsten carbide
  参考文献：
  名称：

  Carbothermic reduction of cobalt and nickel tungstates

  摘要：

  Data are presented on the formation sequence of metallic, carbide, and intermediate oxide phases in the carbon reduction Of CoWO4 and NiWO4. The surface reaction between CoWO4 particles and solid carbon yields the mixed carbide Co6W6C, while the reaction with the CO originating from carbon vaporization yields the intermetallic phase Co7W6. The initial stage of the solid-state and gas-phase reduction of NiWO4 yields a solid solution of tungsten in nickel (similar to 10 at % W), Ni4W, and, presumably, the NiWO4-WO3 eutectic. The solid solution reacts with carbon to form Ni2W4C and with CO to form filamentary tungsten crystals.

  DOI：

  10.1134/s0020168506030174
• 作为产物：
  描述：

  cobalt(II) tungstate * 2H2O 以 neat (no solvent) 为溶剂， 生成 cobalt(II) tungstate
  参考文献：
  名称：

  Anthon, E. F., Journal fur praktische Chemie (Leipzig 1954), 1836, vol. 9, p. 344

  摘要：

  DOI：
• 作为试剂：
  描述：

  葡萄糖 在 cobalt(II) tungstate 、 水 、 potassium hydroxide 作用下， 生成 葡糖酸 、 meso-galactaric acid
  参考文献：
  名称：

  通过 CoWO4 电化学二氮还原葡萄糖氧化辅助氨生产

  摘要：

  环境温度和压力下的电化学N 2还原反应(NRR)是将N 2转化为NH 3的环境友好方法。然而，通过用对电极上更有利的葡萄糖氧化反应（GOR）代替缓慢的析氧反应（OER），可以减少总能量输入。为 NRR 和 GOR 设计一种高效、双功能且具有成本效益的催化剂，并表现出令人印象深刻的性能至关重要，但也具有挑战性。在这里，我们报告了一种用于合成钨酸钴（CoWO 4）通过简单改变反应时间即可获得类似海胆的形态，用于葡萄糖辅助 NRR 中的应用。CoWO 4 (12 h)揭示了形态依赖性活性，与可逆氢电极 (RHE )相比，在 -0.35 V 时具有 667.86 μg h -1 mg cat -1的高 NH 3产率和 22.34% 的法拉第效率 (FE) ），在碱性条件下TOF（翻转频率）为0.67 h -1 。值得注意的是，在全细胞条件下，在存在葡萄糖的情况下，在电势降低 0.27 V 时，氨产量得到增强。

  DOI：

  10.1039/d3ta03302c

文献信息

• Cobalt tungsten oxide hydroxide hydrate (CTOHH) on DNA scaffold: an excellent bi-functional catalyst for oxygen evolution reaction (OER) and aromatic alcohol oxidation
  作者：Sangeetha Kumaravel、Prabaharan Thiruvengetam、Sivasankara Rao Ede、K. Karthick、S. Anantharaj、Selvasundarasekar Sam Sankar、Subrata Kundu

  DOI：10.1039/c9dt03941d

  日期：——

  CTOHH-DNA, a newly developed catalyst utilized for both electrocatalytic OER and aromatic alcohol oxidation reaction with excellent activities.

  CTOHH-DNA是一种新开发的催化剂，可用于电催化OER和芳香醇氧化反应，具有出色的活性。
• Synthesis and photocatalytic properties of sunlight‐responsive BiOBr–CoWO ₄ heterostructured nanocomposites
  作者：Arpita Paul Chowdhury、Baban H. Shambharkar

  DOI：10.1002/aoc.5436

  日期：2020.4

  Efficient sunlight‐responsive BiOBr–CoWO4 heterostructured nanocomposite photocatalysts were prepared via a chemical precipitation route at 100°C in 4 hours. The prepared BiOBr–CoWO4 heterostructures were characterized for phase identification, chemical composition, surface morphology, optical properties and surface area using various techniques. The X‐ray diffraction pattern of the BiOBr–CoWO4 nanocomposite

  通过化学沉淀途径在100°C下4小时内制备了高效的阳光响应性BiOBr-CoWO 4异质结构纳米复合光催化剂。使用各种技术对制备的BiOBr–CoWO 4异质结构进行了相鉴定，化学成分，表面形态，光学性质和表面积的表征。BiOBr-CoWO 4纳米复合材料的X射线衍射图谱由与BiOBr的四方相和CoWO 4纳米颗粒的单斜相相等的衍射峰组成。BiOBr–CoWO 4纳米复合材料的X射线光电子能谱研究揭示了BiOBr和CoWO 4的轨道化合物。透射电子显微镜图像显示，CoWO 4（20–25 nm）的球形颗粒分散在BiOBr的表面上。BiOBr-CoWO 4纳米复合材料的紫外-可见-近红外光谱研究显示出良好的可见光吸收。在制造的材料中，BiOBr–CoWO 4 ‐2纳米复合材料表现出更好的电荷载流子分离效率，如光致发光和时间分辨荧光所证明。为了研究所制备材料的实用性，研究了它们在日光照射下对若
• Tuning the electronic and structural properties of WO₃ nanocrystals by varying transition metal tungstate precursors
  作者：Sara Rahimnejad、Jing Hui He、Wei Chen、Kai Wu、Guo Qin Xu

  DOI：10.1039/c4ra10650d

  日期：——

  WO₃ nanoplates derived from NiWO₄ were found to have the highest concentration of oxygen vacancy, narrowest band gap, longest electron–hole recombination time, and in turn the highest rate of photodegradation of azo dye methylene blue.

  从NiWO₄衍生出的WO₃纳米片被发现具有最高浓度的氧空位、最窄的带隙、最长的电子-空穴复合时间，从而具有最高的光降解偶氮染料亚甲基蓝的速率。
• Composition and temperature dependent phase transitions in Co–W double perovskites, a synchrotron X-ray and neutron powder diffraction study
  作者：Qingdi Zhou、Brendan J. Kennedy、Margaret M. Elcombe

  DOI：10.1016/j.jssc.2006.10.038

  日期：2007.2

  High-resolution synchrotron and neutron powder diffraction techniques were used to determine precise structures for the series of perovskite oxides A2−xSrxCoWO6 (ACa, or Ba, 0⩽x⩽2). The studies demonstrated that the symmetry decreases as the average size of the A-site cation decreases with a sequential introduction of in-phase and out-of-phase tilting of the BO6 octahedra. A cubic structure in Fm3¯m

  高分辨率同步加速器和中子衍射技术被用来确定用于一系列精确结构钙钛矿氧化物甲2- X锶X CoWO 6（甲的Ca，或Ba，0⩽ X ⩽2）。研究表明，随着BO 6八面体的同相和异相倾斜的相继引入，对称性随着A位阳离子平均尺寸的减小而降低。所述的立方结构的FM 3米与岩盐等联合和W阳离子的排序形成Ba的2- X锶X CoWO 6与x〜＜1.4。随着Sr含量的增加，材料在I 4 / m中变为四方晶，最终在P 2 1 / n中变为单斜晶。在室温下，Sr 2 CoWO 6中存在单斜晶相和四方晶相的混合物，但在20 K时纯单斜晶相。
• Cd_0.5Zn_0.5S/CoWO₄ Nanohybrids with a Twinning Homojunction and an Interfacial S-Scheme Heterojunction for Efficient Visible-Light-Induced Photocatalytic CO₂ Reduction
  作者：Ping Mu、Man Zhou、Kai Yang、Xin Chen、Zhenzhen Yu、Kangqiang Lu、Weiya Huang、Changlin Yu、Wenxin Dai

  DOI：10.1021/acs.inorgchem.1c02146

  日期：2021.10.4

  The construction of a phase junction photocatalyst can significantly enhance the photocatalytic performance with high selectivity for CO2 reduction. In this study, an S-scheme junction Cd0.5Zn0.5S/CoWO4 semiconductor with the coupling of a twin crystal Cd0.5Zn0.5S homojunction and CoWO4 was designed through a hydrothermal method, which could convert CO2 to CO with high efficiency under visible-light

  相结光催化剂的构建可以显着提高光催化性能，并且对CO 2还原具有高选择性。在这项研究中，通过水热法设计了一种 S 型结 Cd 0.5 Zn 0.5 S/CoWO 4半导体与双晶 Cd 0.5 Zn 0.5 S 同质结和 CoWO 4的耦合，该半导体可以将 CO 2转化为高可见光照明下的效率。Cd 0.5 Zn 0.5 S–10%CoWO 4表现出最佳性能，CO产率和选择性高达318.68 μmol·g –1和 95.90%，分别是双晶 Cd 0.5 Zn 0.5 S 的4.54 和 1.62 倍。此外，具有闪锌矿和纤锌矿相的 Cd 0.5 Zn 0.5 S 同质结以及 Cd 的 S 型相结0.5 Zn 0.5 S/CoWO 4增强了CO 2吸附性能，加速了光生载流子的脱离。Cd 0.5 Zn 0.5 S中光生空穴与CoWO 4电子的结合可以保留还原位点以提高光催化性能。本研究为S-sche