用于耐磨件的耐磨涂层及半导体薄膜
| 中文名 | 硼化钨 |
|---|---|
| 英文名 | tungstenio(tungstenylidene)borane |
| 中文别名 | 硼化二钨 |
| 英文别名 |
tungstenio(tungstenylidene)borane
DITUNGSTEN MONOBORIDE,W |
| 密度 | 16.000 |
|---|---|
| 熔点 | 2670°C |
| 分子式 | BW2 |
| 分子量 | 378.491 |
| 精确质量 | 378.911102 |
| 外观性状 | -325 Mesh Powder |
| 储存条件 | 密闭于阴凉干燥环境中 |
| 稳定性 | 遵照规定使用和储存则不会分解。具有金属导电性，溶于王水。 |
| 分子结构 | 1、摩尔折射率：无可用 2、 摩尔体积（cm3/mol）：无可用 3、 等张比容（90.2K）：无可用 4、 表面张力（dyne/cm）：无可用 5、 极化率：无可用 |
| 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:3 8.表面电荷:0 9.复杂度:2.8 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:2 |
| 更多 | 1. 性状：黑色粉末 2. 密度（g/mL,25/4℃）：1.6 3. 相对蒸汽密度（g/mL,空气=1）：无可用 4. 熔点（ºC）：2670 5. 沸点（ºC,常压）：无可用 6. 沸点（ºC,5.2kPa）：无可用 7. 折射率：无可用 8. 闪点（ºC）：无可用 9. 比旋光度（º）：无可用 10. 自燃点或引燃温度（ºC）：无可用 11. 蒸气压（kPa,25ºC）：无可用 12. 饱和蒸气压（kPa,60ºC）：无可用 13. 燃烧热（KJ/mol）：无可用 14. 临界温度（ºC）：无可用 15. 临界压力（KPa）：无可用 16. 油水（辛醇/水）分配系数的对数值：无可用 17. 爆炸上限（%,V/V）：无可用 18. 爆炸下限（%,V/V）：无可用 19. 溶解性：无可用 |
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Section 1: Product Identification Chemical Name:Tungsten boride (99.5%-W) (W2B) CAS Registry Number:12007-10-2 Formula:W2B EINECS Number:none Chemical Family:metal borides and carbides Synonym:Ditungsten boride
Section 2: Composition and Information on Ingredients IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL) Title compound12007-10-2100%5mg/m3 (as W - insoluble)no data Section 3: Hazards Identification Emergency Overview:Inhalation hazard as a fine dust or fume. Primary Routes of Exposure:Ingestion, inhalation. Eye Contact:May cause slight to mild irritation of the eyes. Skin Contact:May cause slight to mild irritation of the skin. Inhalation:Dust may be irritating to the nose, mucous membranes and respiratory tract. Ingestion:No information on the physiological effects of ingestion. Acute Health Affects:Dust may be irritating to the nose, mucous membranes and respiratory tract. Chronic Health Affects:No information available on the effects of long-term exposure. 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 in Inhalation: 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:no data Autoignition Temperature:no data Explosion Limits:no data Extinguishing Medium:dry chemical, carbon dioxide, or foam. 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 irritating dusts. Decomposion Products: Unusual Fire or Explosion Hazards: No unusual fire or explosion hazard. SECTION 6: Accidental Release Measures Spill and Leak Procedures:Sweep up the material and dispose of properly. SECTION 7: Handling and Storage Handling and Storage:Store the material in a sealed container. 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 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:-325 mesh blk pwdr (10 micron or less avg. particle size) Molecular Weight:194.66 Melting Point:no data Boiling Point:no data Vapor Pressure:no data Specific Gravity:no data Odor:none Solubility in Water:insoluble 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:Listed in the TSCA inventory. SARA (Title 313):Title compound not listed. Second Ingredient:none SECTION 16 - ADDITIONAL INFORMATION N/A |
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生态学数据: 该物质对环境可能有危害，对水体应给予特别注意。
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| 安全声明 (欧洲) | 22-24/25 |
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1.以金属钨和硼为原料，将两者充分混合、研磨，在1400℃以上加热反应得WB。继续反应生成W2B，经冷却、粉碎得产品。
2.钨与化学计量的硼粉按W∶B=2∶1的摩尔比混合，在真空或氩气氛中于1200～1300℃烧结，可制得一硼化二钨。
3.采用固相法。以金属钨和硼为原料制备硼化钨，反应式如下。
将化学计量的金属钨粉和元素硼充分混合、研磨、成型，在1400℃以上加热反应得ＷＢ。继续反应生成Ｗ２Ｂ，经冷却、粉碎得产品。