13454-74-5

• 常用中文名：钨酸铈(III)
• 常用英文名：Cerium tungsten oxide
• CAS号：13454-74-5
• 分子式：Ce₂O₁₂W₃
• 分子量：1023.74000
• 相关类别： 无机化工 氧化物和过氧化物 金属氧化物
• 发布时间：2018-03-26 08:00:00
• 更新时间：2024-01-02 15:38:00

名称

• 中文名: 氧化钨铈
• 英文名: cerium tungstate
• 中文别名: 钨酸铈(III)
• 英文别名: Cerium (III) tungstate,( Ce) (REO); Cerium tungsten oxide (REO); Cerium tungsten oxide; CERIUM (III) TUNGSTATE; EINECS 236-639-9; Ceriumtungstateoffwhitepowder; ceriumtungstenoxide(ce2w3o12); dicerium tritungsten dodecaoxide; CEROUS TUNGSTATE; MFCD00049725

物化性质

• 密度: 6.770
• 熔点: 350ºC
• 分子式: Ce₂O₁₂W₃
• 分子量: 1023.74000
• 精确质量: 1023.60000
• PSA: 240.78000
• 外观性状: Powder | off-white
• 储存条件:

  常温密闭，阴凉通风干燥

• 稳定性:

  常温常压下稳定

  避免的物料 酸 碱。黄色四方晶系，相对密度6.77，熔点1089℃，在30K以下具有铁磁性。

• 分子结构:

  1、摩尔折射率：无可用的

  2、摩尔体积（cm³/mol）：无可用的

  3、等张比容（90.2K）：无可用的

  4、表面张力（dyne/cm）：无可用的

  5、介电常数：无可用的

  6、极化率（10^-24cm³）：无可用的

  7、单一同位素质量：1023.602545 Da

  8、标称质量：1024 Da

  9、平均质量：1023.7448 Da

• 计算化学:

  1、 氢键供体数量：0

  2、 氢键受体数量：9

  3、 可旋转化学键数量：0

  4、 拓扑分子极性表面积（TPSA）：9

  5、 重原子数量：13

  6、 表面电荷：-12

  7、 复杂度：0

  8、 同位素原子数量：0

  9、 确定原子立构中心数量：0

  10、 不确定原子立构中心数量：0

  11、 确定化学键立构中心数量：0

  12、 不确定化学键立构中心数量：0

  13、 共价键单元数量：13

• 更多:

  1. 性状：黄色四方晶系。

  2. 密度（g/mL,25/4℃）：6.77

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：1089

  5. 沸点（ºC,常压）：未确定

  6. 沸点（ºC,5.2kPa）：未确定

  7. 折射率：未确定

  8. 闪点（ºC）：未确定

  9. 比旋光度（º）：未确定

  10. 自燃点或引燃温度（ºC）：不适用的

  11. 蒸气压（kPa,25ºC）：未确定

  12. 饱和蒸气压（kPa,60ºC）：未确定

  13. 燃烧热（KJ/mol）：未确定

  14. 临界温度（ºC）：未确定

  15. 临界压力（KPa）：未确定

  16. 油水（辛醇/水）分配系数的对数值：未确定

  17. 爆炸上限（%,V/V）：未确定

  18. 爆炸下限（%,V/V）：未确定

  19. 溶解性：不能溶解的

MSDS

Section 1: Product Identification Chemical Name:Cerium (III) tungstate (99.9%-Ce) (REO) CAS Registry Number:13454-74-5 Formula:Ce2(WO4)3 EINECS Number:236-639-9 Chemical Family:metal tungstate Synonym:Tungstic acid cerium salt (3:2) Section 2: Composition and Information on Ingredients IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL) Title Compound13454-74-5100%5mg/m3 (as W -insoluble)no data Section 3: Hazards Identification Emergency Overview:Irritating to skin, eyes and respiratory tract. May be harmful if swallowed. Primary Routes of Exposure:Ingestion Eye Contact:Causes slight to mild irritation of the eyes. Skin Contact:Causes slight to mild irritation of the skin. Inhalation:Irritating to the nose, mucous membranes and respiratory tract. Ingestion:No information on the physiological effects of ingestion. Acute Health Affects:Irritating to skin, eyes and respiratory tract. Chronic Health Affects:No information available on long-term chronic effects. NTP:No IARC:No OSHA:No 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. 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 andNone Decomposion Products: Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards. SECTION 6: Accidental Release Measures Spill and Leak Procedures:Small spills can be mixed with powdered sodium carbonate or ground limestone and swept up. SECTION 7: Handling and Storage Handling and Storage:Store material in a tightly sealed bottle away from moisture. 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. SECTION 9: Physical and Chemical Properties Color and Form:off-white pwdr. Molecular Weight:1023.79 Melting Point:no data Boiling Point:no data Vapor Pressure:not applicable Specific Gravity:no data Odor:none Solubility in Water: SECTION 10: Stability and Reactivity Stability:air and moisture stable Hazardous Polymerization:no hazardous polymerization Conditions to Avoid:none Incompatibility:none Decomposition Products:none SECTION 11: Toxicological Information RTECS Data:No specific information available on this product. Carcinogenic Effects:no data Mutagenic Effects:no data Tetratogenic Effects:no data SECTION 12: Ecological Information Ecological Information:No information available SECTION 13: Disposal Considerations Disposal:Dispose of according to local, state and federal regulations. 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 SECTION 15: Regulatory Information TSCA:Listed in the TSCA inventory. SARA (Title 313):Title compound not listed Second Ingredient:none SECTION 16 - ADDITIONAL INFORMATION N/A

毒性和生态

毒理学数据: 1、急性毒性：主要的刺激性影响： 在皮肤上面：刺激皮肤和粘膜； 在眼睛上面：刺激的影响；没有已知的敏化影响。 2、致敏作用：通过吸入可能造成敏化作用，通过皮肤接触可能造成敏化作用。 生态学数据: 通常对水是不危害的，若无政府许可，勿将材料排入周围环境

安全

• 危害码 (欧洲): Xi: Irritant;
• 风险声明 (欧洲): R43
• 安全声明 (欧洲): 36
• WGK德国: 3

制备

将Ce2O3、CeO2与WO3混合加热制取钨酸亚铈。