氧化钨铈 | 13454-74-5

• 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 - 各种混合金属/非金属
• 中文名称: 氧化钨铈
• 英文名称: Cerium tungsten oxide (Ce2W3O12)
• 英文别名: cerium(3+);oxygen(2-);tungsten
• CAS: 13454-74-5
• 化学式: Ce2O9W2-12
• 分子量: 791.9
• InChiKey: PMMOMAJHUNGVIB-UHFFFAOYSA-N

物化性质

• 熔点：
  >350 °C(lit.)
• 密度：
  6.770
• 溶解度：
  不溶于水
• 暴露限值：
  ACGIH: TWA 3 mg/m3NIOSH: TWA 5 mg/m3; STEL 10 mg/m3
• 稳定性/保质期：

  在常温常压下稳定，应避免接触酸碱物质。其晶体结构为黄色四方晶系，相对密度为6.77，熔点达到1089℃，并在30K以下具有铁磁性。

计算性质

• 辛醇/水分配系数(LogP)：
  -1.07
• 重原子数：
  13
• 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：
  9
• 氢给体数：
  0
• 氢受体数：
  9

安全信息

• TSCA：
  Yes
• 危险品标志：
  Xi
• 安全说明：
  S36
• 危险类别码：
  R43
• WGK Germany：
  3

SDS

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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)

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Section 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 13454-74-5 100% 5mg/m3 (as W -insoluble) no data

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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

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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: 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:

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

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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

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SECTION 12: Ecological Information
Ecological Information: No information available

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SECTION 13: Disposal Considerations
Disposal: Dispose of according to local, state and federal 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 not listed
Second Ingredient: none

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SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

生产方法： 将 Ce2O3、CeO2 与 WO3 混合后加热，制备钨酸亚铈。