10102-24-6

• 常用中文名：硅酸锂
• 常用英文名：lithium silicate
• CAS号：10102-24-6
• 分子式：Li₂O₃Si
• 分子量：89.966
• 相关类别： 无机化工 无机盐 硅化物及硅酸盐
• 发布时间：2018-02-09 08:00:00
• 更新时间：2024-01-02 03:00:31
• 【用途一】
  用于玻璃体系、熔融盐体系及高温陶瓷釉料中，也用作钢铁等表面防锈涂料
  【用途二】
  用作黏合剂，主要用于无机富锌涂料和高级焊条。

名称

• 中文名: 硅酸锂
• 英文名: Lithium Metasilicate (Metals Basis)
• 英文别名: Silanediolate, 1-oxo-, lithium salt (1:2); EINECS 233-270-5; lithium silicate; lithium metasilicate; MFCD00016179; Dilithium oxosilanediolate

物化性质

• 密度: 2,52 g/cm3
• 熔点: 1204°C
• 分子式: Li₂O₃Si
• 分子量: 89.966
• 精确质量: 89.993675
• PSA: 63.19000
• 外观性状: 固体;White to Almost white powder to crystal
• 储存条件:

  应贮存在通风阴凉的库房内。

• 稳定性:

  溶于水及碱性溶液，不溶于醇及有机溶剂。与酸作用游离出凝胶。有自干性，溶液水分蒸发后，能生成一种不溶于水的干膜，具有水不可逆性。不溶于冷水，在沸水中分解。

• 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：89.993678 Da

  8、标称质量：90 Da

  9、平均质量：89.9657 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:3

  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63.2

  7.重原子数量:6

  8.表面电荷:0

  9.复杂度:18.8

  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:3

• 更多:

  1. 性状：无臭、无味透明液体。

  2. 密度（g/mL,25℃）：2.52

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：1201

  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：溶于水及碱性溶液，不溶地醇及有机溶剂。

MSDS

Section 1: Product Identification Chemical Name:Lithium metasilicate, 99% CAS Registry Number:10102-24-6 Formula:Li2SiO3 EINECS Number:233-270-5 Chemical Family:metal silicate Synonym:Silicic acid dilithium salt, Lithium silicate Section 2: Composition and Information on Ingredients IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL) Title Compound10102-24-6100%no datano data Section 3: Hazards Identification Causes severe irritation to eyes and skin. Lithium salts are toxic to the central nervous system and on Emergency Overview: repeated ingestion may damage kidneys and act as a teratogen Primary Routes of Exposure:Ingestion, inhalation, skin and eyes Eye Contact:Causes severe irritation of the eyes resulting in redness and watering. Skin Contact:Prolonged contact with moist skin causes irritation. Inhalation:May cause difficulty in breathing and irritate the mucous membranes and respiratory tract. Ingestion:May cause ulceration of esophagus and stomach. May be harmful if swallowed. Lithium salts are toxic to the central nervous system. Irritation will occur at all Acute Health Affects: points of bodily contact. Prolonged inhalation of silica dust can produce silicosis with impairment of the cardiopulmonary system. Chronic Health Affects: Lithium may cause kidney damage and act as a teratogen. 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 andNone 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 pwdr. Molecular Weight:89.94 Melting Point:1201° Boiling Point:no data Vapor Pressure:no data Specific Gravity:2.52 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: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: 通常对水体是稍微有害的，不要将未稀释或大量产品接触地下水，水道或污水系统，未经政府许可勿将材料排入周围环境。

安全

• 危害码 (欧洲): Xi
• 风险声明 (欧洲): R36/37/38
• 安全声明 (欧洲): S26-S36/37/39
• 海关编码: 2839900090

制备

1.氢氧化锂法将硅酸钠与硫酸反应，生成水合硅酸与硫酸钠，取其水合硅酸与氢氧化锂反应，生成硅酸锂和水，制得硅酸锂产品。

2.将Li2CO3和SiO2在Pt坩埚中混合熔合(1215℃)，再急剧冷却，在1180℃得到偏硅酸锂晶体。该反应进行很充分。

3.将浓的Na2SiO3溶液与化学计量的适当浓度的LiCl、LiOH溶液混合，再在80～90℃下加热一段时间，即得到颗粒状白色沉淀。将其在100℃以下加热即制得Li2SiO3固体。

海关

海关编码	2839900090