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| 中文名 | 四氯化钨 |
|---|---|
| 英文名 | tetrachlorotungsten |
| 英文别名 |
Tungsten tetrachloride
WCl4 MFCD00012027 |
| 密度 | 4.624 g/cm3 |
|---|---|
| 分子式 | Cl4W |
| 分子量 | 325.65200 |
| 精确质量 | 323.82600 |
| LogP | 2.75800 |
| 外观性状 | 黑色 |
| 储存条件 | 室温 |
| 稳定性 | 其吸湿性不如五氯化钨强，但遇水则水解。即使加热也不熔融和升华，但若在真空下强烈，熔点温度时分解，水中分解。 |
| 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：323.826311 Da 8、标称质量：324 Da 9、平均质量：325.652 Da |
| 计算化学 | 1.疏水参数计算参考值（XlogP）:无 2.氢键供体数量:0 3.氢键受体数量:0 4.可旋转化学键数量:0 5.互变异构体数量:无 6.拓扑分子极性表面积0 7.重原子数量:5 8.表面电荷:0 9.复杂度:19.1 10.同位素原子数量:0 11.确定原子立构中心数量:0 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：暗褐色的固体。 2. 密度（g/mL,25/4℃）：4.62 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）：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：未确定 |
|
Section 1: Product Identification Chemical Name:Tungsten (IV) chloride, 97% CAS Registry Number:13470-13-8 Formula:WCl4 EINECS Number:none Chemical Family:metal halide Synonym:Tungsten tetrachloride
Section 2: Composition and Information on Ingredients IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL) Title Compound13470-13-8100%1mg/m3 (as W - soluble)no data Section 3: Hazards Identification Corrosive to skin and eyes. Material hydrolyzes in contact with moisture releasing toxic and corrosive fumes Emergency Overview: of hydrogen chloride and aqueous hydrochloric acid. Primary Routes of Exposure:Contact with skin and eyes. Inhalation of dust. Eye Contact:Corrosive irritant to the eyes. Skin Contact:Corrosive to skin. Inhalation:Forms hydrogen chloride in the presence of moisture. Inhalation can lead to burning of the respiratory tract. Ingestion:No information is available on the acute physiological effects of ingestion. Corrosive to skin, eyes and respiratory tract. Causes eye and skin burns, dyspnea (difficulty breathing) and Acute Health Affects: pulmonary edema. 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. Material is non-flammable. If this product is involved in a fire, fire fighters should be equipped with a NIOSH approved positive pressure Special Fire Fighting Procedures: self-contained breathing apparatus and full protective clothing. Hazardous Combustion andIf involved in a fire this material may emit toxic fumes of hydrogen chloride. Decomposion Products: Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards. SECTION 6: Accidental Release Measures Small spills can be mixed with powdered sodium bicarbonate, lime, or calcium carbonate and swept up. Avoid Spill and Leak Procedures: raising dust. SECTION 7: Handling and Storage Store solid in a tightly sealed bottle away from moisture. If possible, handle solid in an efficient fume hood. Handling and Storage: Prolonged exposure to the atmosphere will lead to degradation of the product. 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 protective clothing and gloves. Consult with glove manufacturer to determine the proper type of glove. Ventilation:The solid may form corrosive vapors. It should be handled 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:The solid may form corrosive vapors. It should be handled in an efficient fume hood. Additional Protection:No additional protection required. SECTION 9: Physical and Chemical Properties Color and Form:gray pwdr. Molecular Weight:325.66 Melting Point:no data Boiling Point:no data Vapor Pressure:no data Specific Gravity:4.624 Odor:pungent odor Solubility in Water:reacts with water SECTION 10: Stability and Reactivity Stability:moisture sensitive Hazardous Polymerization:no hazardous polymerization Conditions to Avoid:contact with moisture Incompatibility:active metals Decomposition Products:Tungsten oxychloride, hydrogen chloride 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):Corrosive Solids, N.O.S. Hazard Class (CFR):8 Additional Hazard Class (CFR):NA Packaging Group (CFR):II UN ID Number (CFR):UN# 1759 Shipping Name (IATA):Corrosive Solid, N.O.S. Hazard Class (IATA):8 Additional Hazard Class (IATA):NA Packaging Group (IATA):II UN ID Number (IATA):UN# 1759 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 |
| 符号 |
GHS05 |
|---|---|
| 信号词 | Danger |
| 危害声明 | H314 |
| 警示性声明 | P280-P305 + P351 + P338-P310 |
| 个人防护装备 | Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges |
| 危害码 (欧洲) | C: Corrosive; |
| 风险声明 (欧洲) | R34 |
| 安全声明 (欧洲) | S26 |
| 危险品运输编码 | UN 3260 8 |
| 包装等级 | III |
| 上游产品 0 | |
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| 下游产品 2 | |
1.在充入惰性气体的干燥箱中，将5g六氯化钨和聚四氟乙烯制的搅拌棒一起，从图Ⅵ9所示的装置4处放入6中，随后，熔封支管4。用干冰冷却6处，同时打开聚四氟乙烯制的旋塞从2抽气。用减压蒸馏的方图四氯化钨的合成装置法，将精制脱水的四氯乙烯从外面引入6处达30mL。恢复常温后，抽真空并将6处浸入透明的油浴中，用500W的灯泡照射，在150℃下反应3天。此时，为安全起见，反应装置可围以防护屏。反应结束后冷却，然后将装置倒立，通过玻璃过滤器3滤出产生的沉淀。若再次加热1处，由于有机溶剂进行回流，使沉淀上附着的未反应的六氯化钨被萃取下来，萃取液成无色后，停止加热。接着从2处抽气，并打开聚四氟乙烯制的旋塞，通过减压蒸馏，将有机溶剂完全逐出。在充入惰性气体的干燥箱中，将6处切断，取出玻璃过滤器上的生成物。在该生成物中，含有由于副反应生成的五氯化钨等杂质，故将其置于硬质玻璃管中，若在二氧化碳气流中加热，则氯化钨中最易挥发的五氯化钨将首先升华，再升高温度时，六氯化钨和二氯化钨也挥发出来，仅目的产物四氯化钨不升华而最终存留下来。收率为95%。
图VI-9 四氯化钨的合成装置
2.在直径30mm的硼硅酸玻璃管中，加入20～25g六氯化钨和计算量的铝箔(使六氯化钨过量1～2g)。然后，将反应管抽真空，并将其封闭，反应管在475℃下保温，装有六氯化钨的一端则保持在225℃。约48小时后反应结束。反应期间，生成物四氯化钨可扩散至管的低温端，并凝结出粗糙的结晶状沉积物。为了除去过量的六氯化钨和生成的氯化铝，将含有结晶粉末的管端在225℃下加热，另一端保持室温。然后，在干燥箱中打开反应管，取出四氯化钨。
