25519-09-9

• 常用中文名：一水合乙酸钬
• 常用英文名：Holmium(III) acetate monohydrate
• CAS号：25519-09-9
• 分子式：C₆H₁₁HoO₇
• 分子量：360.07800
• 相关类别： 有机原料 羧酸类化合物及衍生物 羧酸酯及其衍生物的盐
• 发布时间：2018-08-16 18:00:47
• 更新时间：2024-01-30 09:16:18

名称

• 中文名: 醋酸钬四水
• 英文名: holmium acetate
• 中文别名: 醋酸钬
• 英文别名: Essigsaeure,Holmiumacetat; holmium(3+) acetate; Triacetic acid holmium salt; HOLMIUM (III) ACETATE; holmium(3+) triethanoate; Holmium triacetate; MFCD00150648; holmium(3+) triacetate; acetic acid,holmium acetate; EINECS 247-066-9

物化性质

• 沸点: 117.1ºC
• 熔点: 85-87 °C(lit.)
• 分子式: C₆H₁₁HoO₇
• 分子量: 360.07800
• 闪点: 40ºC
• 精确质量: 359.98100
• PSA: 88.13000
• 外观性状: 白色晶体无气味的
• 储存条件: 室温， 密封， 干燥
• 稳定性:

  与1，10菲咯啉作用［157］，得到络合物，加热至261～263℃分解。

• 计算化学:

  1.疏水参数计算参考值（XlogP）:1.6

  2.氢键供体数量:2

  3.氢键受体数量:5

  4.可旋转化学键数量:1

  5.互变异构体数量:8

  6.拓扑分子极性表面积74.6

  7.重原子数量:27

  8.表面电荷:0

  9.复杂度:841

  10.同位素原子数量:0

  11.确定原子立构中心数量:7

  12.不确定原子立构中心数量:0

  13.确定化学键立构中心数量:0

  14.不确定化学键立构中心数量:0

  15.共价键单元数量:1

• 更多:

  1. 性状：黄色固体，溶于水。

  2. 密度（g/mL,25/4℃）：未确定

  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,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）：未确定

  11. 蒸气压（kpa,20ºC）：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：未确定

MSDS

Section 1: Product Identification Chemical Name:Holmium (III) acetate monohydrate (99.9%-Ho) (REO) CAS Registry Number:25519-09-9 Formula:Ho(OOCCH3)3.H2O EINECS Number:none Chemical Family:metal acetate salt Synonym:Acetic acid, holmium(+3) salt, hydrate Section 2: Composition and Information on Ingredients IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL) Title Compound25519-09-9100%no datano data Section 3: Hazards Identification Emergency Overview:Irritating to skin, eyes and respiratory tract. Primary Routes of Exposure:Ingestion, Inhalation of dust. 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. Ingestion:Seek medical attention immediately. Keep the victim calm. Give the victim water (only if conscious). SECTION 5: Fire Fighting Measures Flash Point:not applicable Autoignition Temperature:none Explosion Limits:none Extinguishing Medium:carbon dioxide, dry powder or foam 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 organic fumes. 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 vermiculite or sodium carbonate and swept up. SECTION 7: Handling and Storage Handling and Storage:Store in a sealed container. Keep away from heat and 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:Material may form a fine dust. If possible, handle the material in an efficient fume hood. If in form of fine dust and ventilation is not available a respirator should be worn. The use of respirators Respirator: requires a Respirator Protection Program to be in compliance with 29 CFR 1910.134. Ventilation:Material may form a fine dust. 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:peach pwdr. Molecular Weight:342.07 (360.09) Melting Point:no data Boiling Point:no data Vapor Pressure:not applicable Specific Gravity:no data Odor:none Solubility in Water:soluble SECTION 10: Stability and Reactivity Stability:air and moisture stable solid Hazardous Polymerization:no hazardous polymerization Conditions to Avoid:none Incompatibility:oxidizing agents Decomposition Products:Carbon dioxide, carbon monoxide, organic vapors, and metal oxides and carbonates. SECTION 11: Toxicological Information RTECS Data:No information available in the RTECS files. Carcinogenic Effects:No data available Mutagenic Effects:No data available Tetratogenic Effects:No data available 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

安全

• 危害码 (欧洲): Xn
• 风险声明 (欧洲): R36/37/38
• 安全声明 (欧洲): S26-S37/39

上下游产品

上游产品  0
下游产品  1
18779-07-2

制备

取氧化钬（Ⅲ）10g加至500mL 50%醋酸溶液中，用砂浴加热，通常氧化物可完全溶解。若瓶底仍有少量未溶的氧化物，需过滤成清液。将滤液置于75℃水浴上加热，以蒸去大部分溶剂，冷却，滤集晶体。将晶体放入玻璃皿中，置于装有固体氢氧化钠和高氯酸镁的真空保干器中，抽真空进行干燥，得到水合醋酸钬（Ⅲ）。将水合物在真空中于150℃加热约24h或加热至恒重，得到无水醋酸钬（Ⅲ）。