57804-25-8

• 常用中文名：硫酸镧(III)水合物
• 常用英文名：lanthanum sulfate
• CAS号：57804-25-8
• 分子式：La₂O₁₂S₃
• 分子量：565.999
• 相关类别： 无机化工 无机盐 金属硫化物及硫酸盐
• 发布时间：2018-08-16 21:39:44
• 更新时间：2024-01-22 08:14:32

名称

• 中文名: 水合硫酸镧
• 英文名: Lanthanum(III) Sulfate Hydrate
• 中文别名: 硫酸镧(III) 合物; 硫酸镧(III)水合物
• 英文别名: MFCD00011070; Lanthanum sulfate (2:3); EINECS 233-239-6; lanthanum sulfate; lanthanum(3+),trisulfate,octahydrate

物化性质

• 密度: 2.821
• 沸点: 330ºC at 760mmHg
• 熔点: white heat
• 分子式: La₂O₁₂S₃
• 分子量: 565.999
• 精确质量: 565.667908
• PSA: 265.92000
• 外观性状: Powder | White
• 储存条件:

  储藏在密封的储藏器内，并放置阴凉，干爽的地方保存

• 稳定性:

  避免接触氧化物，水分

• 水溶解性: Slightly soluble in water.
• 更多:

  1. 性状：无气味的白色粉末

  2. 密度（g/mL）： 2.821

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：未确定

  5. 沸点（ºC, 10mmHg）：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）：不可燃

  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：微溶于水

MSDS

Section 1: Product Identification Chemical Name:Lanthanum (III) sulfate hydrate (99.9%-La) (REO) CAS Registry Number:57804-25-8 Formula:La2(SO4)3.XH2O EINECS Number:233-239-6 Chemical Family:metal sulfate Synonym:none Section 2: Composition and Information on Ingredients IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL) Title Compound57804-25-8100%no datano data Section 3: Hazards Identification Emergency Overview:Irritating to eyes, skin 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 andIf involved in a fire this material may emit toxic fumes of sulfur oxides. 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:white xtl. Molecular Weight:566 Melting Point:dec. Boiling Point:no data Vapor Pressure:no data Specific Gravity:2.821 Odor:none Solubility in Water:soluble 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 information available in the RTECS files. 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:Not 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

生态学数据: 对水是稍微危害的

安全

• 危害码 (欧洲): Xi
• 风险声明 (欧洲): 36/37/38
• 安全声明 (欧洲): 26-36
• WGK德国: 3

制备

将高纯La2O溶于稀盐酸中，向该溶液中加入比反应计量稍多的稀硫酸，然后向此溶液中加入大量的95%的乙醇，即可沉淀出八水硫酸钇的结晶，滤出沉淀并用95%的乙醇洗涤至无氯离子和游离酸，在空气中凉干。