13568-45-1

• 常用中文名：钨酸锂
• 常用英文名：lithium tungstate
• CAS号：13568-45-1
• 分子式：Li₂O₄W
• 分子量：261.72000
• 发布时间：2018-05-07 08:00:00
• 更新时间：2024-01-05 09:34:14
• 下载msds

名称

• 中文名: 钨酸锂
• 英文名: dilithium,dioxido(dioxo)tungsten
• 中文别名: 氧化钨锂
• 英文别名: AC1NN4QG; dilithium dioxido(dioxo)tungsten; MFCD00016185; AC1O1FVC; diLithoTab tungstate; EINECS 236-978-2; Dilithium tetraoxotungstate Lithium tungsten oxide

物化性质

• 密度: 3.71 g/mL at 25 °C(lit.)
• 熔点: 742°C
• 分子式: Li₂O₄W
• 分子量: 261.72000
• 精确质量: 261.96300
• PSA: 80.26000
• 储存条件:

  常温密闭，阴凉通风干燥

• 稳定性:

  常温常压下稳定

  避免光，明火，高温。易溶于水，在酸中分解，不溶于乙醇。在500～800℃温度下加热用H2还原成钨青铜，在加热到600℃后生成WO2，最终产物是W（β型）。

• 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：261.962566 Da

  8、标称质量：262 Da

  9、平均质量：261.7196 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:4

  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80.3

  7.重原子数量:7

  8.表面电荷:0

  9.复杂度:62.2

  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：具有BeSiO3石晶格。无色三角晶。

  2. 密度（g/mL,25/4℃）：3.71

  3. 相对蒸汽密度（g/mL,空气=1）：未确定

  4. 熔点（ºC）：742

  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：可溶解的

MSDS

Section 1: Product Identification Chemical Name:Lithium tungstate, 98% CAS Registry Number:13568-45-1 Formula:Li2WO4 EINECS Number:236-978-2 Chemical Family:metal tungstate Synonym:Tungstic acid dilithium salt Section 2: Composition and Information on Ingredients IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL) Title Compound13568-45-1100%1mg/m3 (as W)no data Section 3: Hazards Identification Lithium in soluble form is toxic to the central nervous system and on repeated ingestion may damage kidneys Emergency Overview: and act as a teratogen Primary Routes of Exposure:Ingestion Eye Contact:May cause slight to mild irritation of the eyes. Skin Contact:May cause slight to mild irritation of the skin. Inhalation:Do not breath dust. May be irritating to the nose, mucous membranes and respiratory tract. Ingestion:Ingestion may lead to dizziness, abdominal cramps, vomiting, bloody diarrhea, weakness, and convulsions. Soluble lithium is toxic to the central nervous system. May be irritating to skin, eyes and respiratory tract. It is Acute Health Affects: unknown if lithium tungstate will form soluble lithium in the gastrointestinal system. Chronic Health Affects:May cause kidney damage. May be 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 protective clothes and gloves. Consult glove manufacturer to determine the proper type of glove. 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 to off-white powder Molecular Weight:261.73 Melting Point:742° Boiling Point:no data Vapor Pressure:no data Specific Gravity:3.71 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

毒理学数据: 1、急性毒性： 主要的刺激性影响： 在皮肤上面：可能引起发炎； 在眼睛上面：可能引起发炎；没有已知的敏化影响。 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

• 个人防护装备: Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
• 危害码 (欧洲): Xi
• 安全声明 (欧洲): S22-S24/25
• 危险品运输编码: NONH for all modes of transport
• WGK德国: 3

制备

在Li(OH)或Li2CO3溶液中溶解WO3而制得Li2WO4。