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| 中文名 | 铌酸锂 |
|---|---|
| 英文名 | lithium niobate |
| 英文别名 |
Niobium, olatodioxo-, lithium salt (1:1)
MFCD00011080 Lithium metaniobatem Lithium niobium oxide Lithium niobium trioxide Lithium niobate LITHIUM METANIOBATE Rubidium columbate niobiumlithiumoxide EINECS 234-755-4 Lithium niobate wafer Lithium niobium oxide niobate,lithium Lithium oxido(dioxo)niobium lithiummethaniobate |
| 密度 | 4,659 g/cm3 |
|---|---|
| 熔点 | 1275°C |
| 分子式 | LiNbO3 |
| 分子量 | 147.846 |
| 精确质量 | 147.907150 |
| PSA | 57.20000 |
| 外观性状 | 白色粉末 |
| 折射率 | 2.3055 (457 nm 160℃) |
| 储存条件 | 常温密闭，阴凉通风干燥处 |
| 稳定性 | 常温常压下稳定 避免光，明火，高温。铌酸锂是一种铁电晶体，居里点1210℃，自发极化强度50×10－6C/cm2。经过畸化处理的铌酸锂晶体具有压电、铁电、光电、非线性光学、热电等多性能的材料，同时具有光折变效应。 莫氏硬度5；折射率n0=2.297；ne=2.208（λ=600nm）；介电常数ε11s=44，ε33s=29.5，ε11T=84，ε33T=30；居里点1210℃；自发极化强度50×10-6C/cm2。为铁电晶体，经畸化处理的铌酸锂晶体是具有压电、铁电、光电、热电、非线性光学以及光折变效应的多功能材料。 这种盐以及Na和K盐在光电设备、音响设备和激光设备中有很广泛的应用。 |
| 计算化学 | 1、 氢键供体数量：0 2、 氢键受体数量：3 3、 可旋转化学键数量：0 4、 拓扑分子极性表面积（TPSA）：57.2 5、 重原子数量：5 6、 表面电荷：0 7、 复杂度：49.8 8、 同位素原子数量：0 9、 确定原子立构中心数量： 0 10、 不确定原子立构中心数量：0 11、 确定化学键立构中心数量：0 12、 不确定化学键立构中心数量：0 13、 共价键单元数量：2 |
| 更多 | 1. 性状：铌酸锂晶体简称LN，属三方晶系，钛铁矿型(畸变钙钛矿型)结构。无色固体，具有钙钛矿型结构。 2. 密度（g/mL,25℃）：4.3 3. 相对蒸汽密度（g/mL,空气=1）：未确定 4. 熔点（ºC）：1240 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 |
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Section 1: Product Identification Chemical Name:Lithium niobate (99.998%-Nb)PURATREM CAS Registry Number:12031-63-9 Formula:LiNbO3 EINECS Number:234-755-4 Chemical Family:inorganic compound Synonym:Lithium niobium oxide, Niobium lithium oxide.
Section 2: Composition and Information on Ingredients IngredientCAS NumberPercentACGIH (TWA)OSHA (PEL) Title Compound12031-63-9100%no datano data Section 3: Hazards Identification Lithium is toxic to the central nervous system and on repeated ingestion may damage kidneys and act as a Emergency Overview: teratogen Primary Routes of Exposure:Contact with skin and eyes. Dust inhalation. Eye Contact:May cause slight to mild irritation of the eyes. Skin Contact:May cause slight to mild irritation of the skin. Inhalation: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. Acute Health Affects:Lithium is toxic to the central nervous system. May be irritating to skin, eyes and respiratory tract. 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 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:147.85 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:Oral (rat); LD: >8 gm/kg. Carcinogenic Effects:none Mutagenic Effects:none Tetratogenic Effects:none 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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毒理学数据: 急性毒性：小鼠口服LD：>8gm/kg； 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 致敏作用：没有已知的敏化现象 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。
CHEMICAL IDENTIFICATION
HEALTH HAZARD DATAACUTE TOXICITY DATA
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| 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 |
| RTECS号 | QT9800000 |
1.提拉法以碳酸锂、五氧化二铌为原料制备铌酸锂：将碳酸锂和五氧化二铌放入铂金坩埚中，沿(001)方向生长晶体。为得到优质无色透明圆柱体，
2.通过加热Li2CO3和Nb2O5或熔融Li2O和Nb2O5均可制得偏铌(Ⅴ)酸锂。
3.采用提拉法。将碳酸锂和五氧化二铌放入铂金坩埚中，沿（001）方向生长结晶，当晶体生长的两个方向的两个端面的温度略高于居里温度时，再加一个适当大小的电场，形成晶体后将晶体冷却结晶，即得到铌酸锂晶体。反应式如下。
