12039-83-7

• 常用中文名：硅化钛
• 常用英文名：titanium silicide
• CAS号：12039-83-7
• 分子式：Si₂Ti
• 分子量：104.03800
• 相关类别： 无机化工 无机盐 硅化物及硅酸盐
• 发布时间：2018-04-05 08:00:00
• 更新时间：2025-08-26 12:52:28

• 用作精细陶瓷的原料粉。

名称

• 中文名: 硅化钛
• 英文名: bis(λ2-silanylidene)titanium
• 英文别名: Titanium silicide (TiSi2); Titanium disilicide; MFCD00049564; TITANIUM SILICIDE,TiSi; EINECS 234-902-2; EINECS 234-904-3

物化性质

• 密度: 4,39 g/cm3
• 沸点: 1540ºC
• 熔点: 1540ºC
• 分子式: Si₂Ti
• 分子量: 104.03800
• 精确质量: 103.90200
• 储存条件:

  常温密闭，阴凉通风干燥

• 稳定性:

  常温常压下稳定

  避免的物料 氧化物 酸 碱

• 计算化学:

  1、 拓扑分子极性表面积（TPSA）：0

  2、 重原子数量：3

  3、 表面电荷：0

  4、 复杂度：18.3

  5、 同位素原子数量：0

  6、 确定原子立构中心数量： 0

  7、 不确定原子立构中心数量：0

  8、 确定化学键立构中心数量：0

  9、 不确定化学键立构中心数量：0

  10、 共价键单元数量：1

  11、 氢键供体数量：0

  12、 氢键受体数量：0

  13、 可旋转化学键数量：0

• 更多:

  1. 性状：暗灰色正方形结晶

  2. 密度（g/mL,25℃）：4.0

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：1500

  5. 沸点（ºC,常压）：未确定

  6. 沸点（ºC，1mmHg）：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（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

  20.晶格常数：a=0.8236nm，b=0.4773nm，c=0.8523nm。

  21.莫氏硬度：4～5

  22.电阻率（μΩ·cm）：123

MSDS

Section 1: Product Identification Chemical Name:Titanium silicide (99+%-Ti) CAS Registry Number:12039-83-7 Formula:TiSi2 EINECS Number:234-904-3 Chemical Family:metal silicide Synonym:Titanium disilicide Section 2: Composition and Information on Ingredients IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL) Title Compound12039-83-7100%no datano data Section 3: Hazards Identification Emergency Overview:May be irritating to skin, eyes and mucous membranes. Primary Routes of Exposure:Ingestion Eye Contact:May cause mild to moderate 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 is available on the physiological effects of ingestion. Acute Health Affects:May be 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 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:carbon dioxide or dry powder If this product is involved in a fire, firefighters should be equipped with NIOSH approved positive pressure Special Fire Fighting Procedures: self-contained breathing apparatus. Hazardous Combustion andIf involved in a fire toxic oxidation or decomposition products may form. Decomposion Products: Unusual Fire or Explosion Hazards: May be fire or explosion hazard if in the form of a fine dust mixed with air. SECTION 6: Accidental Release Measures Spill and Leak Procedures:Sweep up the solids and dispose of properly. SECTION 7: Handling and Storage Handling and Storage:Store the material in a sealed container. Keep away from heat. 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. Ventilation:If possible, handle the material in an efficient fume hood. If ventilation is not available a respirator should be worn. The use of respirators requires a Respiratory 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:-325 mesh gray to black powder Molecular Weight:112.03 Melting Point:1540° Boiling Point:no data Vapor Pressure:no data Specific Gravity:4.39 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:strong oxidizing agents 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

毒性和生态

毒理学数据: 主要的刺激性影响： 在皮肤上面：刺激皮肤和粘膜 在眼睛上面：刺激的影响 致敏作用：没有已知的敏化现象 生态学数据: 通常对水是不危害的，若无政府许可，勿将材料排入周围环境

安全

• 危害码 (欧洲): F+
• 危险品运输编码: UN3178
• 包装等级: III
• 危险类别: 4.1

制备

1.将金属钛和金属硅放入电弧炉内，在氩气气氛下于1100℃熔融制得二硅化钛。

2.采用合成法。将金属钛和金属硅放入电弧炉内，在氩气气氛下于1100℃熔融，即制得二硅化钛。