铌酸锂 | 12031-63-9

• 物质功能分类: 无机化工 - 无机盐 - 金属氧化物酸盐、金属过氧化物酸盐
• 分子结构分类: 无机化合物 - 混合金属/非金属化合物 - 各种混合金属/非金属
• 中文名称: 铌酸锂
• 中文别名: 铌酸锂晶体；铌酸锂LN
• 英文名称: lithium;niobium(5+);oxygen(2-)
• CAS: 12031-63-9
• 化学式: LiNbO3
• 分子量: 147.9
• InChiKey: PSVBHJWAIYBPRO-UHFFFAOYSA-N

物化性质

• 熔点：
  1275°C
• 密度：
  4,659 g/cm3
• 稳定性/保质期：

  铌酸锂是一种铁电晶体，在常温常压下稳定，需避免光、明火及高温。其居里点为1210℃，自发极化强度为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，同时还具备光折变效应。

  该晶体莫氏硬度为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。居里点为1210℃，自发极化强度为50×10-6C/cm2。铌酸锂及其钠盐、钾盐在光电设备、音响设备和激光设备中有广泛的应用。

计算性质

• 辛醇/水分配系数(LogP)：
  -3.35
• 重原子数：
  5
• 可旋转键数：
  0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  3
• 氢给体数：
  0
• 氢受体数：
  3

安全信息

• TSCA：
  Yes
• 安全说明：
  S22,S24/25
• WGK Germany：
  3
• RTECS号：
  QT9800000

SDS

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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.

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Section 2: Composition and Information on Ingredients
Ingredient CAS Number Percent ACGIH (TWA) OSHA (PEL)
Title Compound 12031-63-9 100% no data no data

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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

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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.

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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 and None
Decomposion Products:
Unusual Fire or Explosion Hazards: No unusual fire or explosion hazards.

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SECTION 6: Accidental Release Measures
Spill and Leak Procedures: Small spills can be mixed with powdered sodium carbonate or ground limestone and swept up.

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SECTION 7: Handling and Storage
Handling and Storage: Store material in a tightly sealed bottle away from moisture.

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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.

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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

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SECTION 10: Stability and Reactivity
Stability: air and moisture stable
Hazardous Polymerization: no hazardous polymerization
Conditions to Avoid: none
Incompatibility: none
Decomposition Products: none

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SECTION 11: Toxicological Information
RTECS Data: Oral (rat); LD: >8 gm/kg.
Carcinogenic Effects: none
Mutagenic Effects: none
Tetratogenic Effects: none

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SECTION 12: Ecological Information
Ecological Information: No information available

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SECTION 13: Disposal Considerations
Disposal: Dispose of according to local, state and federal regulations.

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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

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SECTION 15: Regulatory Information
TSCA: Listed in the TSCA inventory.
SARA (Title 313): Title compound not listed
Second Ingredient: none

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SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

铌酸锂的基本信息

• 化学式：LiNbO3
• 结构类型：三方晶系（畸变钙钛矿型）
• 密度：4.30 g/cm³
• 熔点：1240℃
• 硬度：5摩氏硬度
• 折射率：
  • n0 = 2.797
  • ne = 2.208（λ=600 nm）

主要性质

• 电光系数：γ13 = γ23 = 10×10⁻¹² m/V，γ33 = 32×10⁻¹² m/V
• 非线性系数：
  • d31 = -6.3×10⁻¹² m/V
  • d22 = +3.6×10⁻¹² m/V
  • d33 = -47×10⁻¹² m/V
• 介电常数：εs11 = 44，εs33 = 29.5，εT11 = 84，εT33 = 30

铌酸锂的用途

1. 光学调制器：

   • 将电子信号转换为光信号。
   • 应用于通信技术中的数据传输。

2. 调Q开关：

   • 在激光系统中调节脉冲宽度和能量分布。

3. 倍频和非线性光学应用：

   • 用于产生更高频率的光波。

4. 全息记录介质材料：

   • 添加特定金属杂质后的铌酸锂晶体可以作为高效全息记录材料。

5. 相位调节器与大规模集成光学系统：

   • 实现精确的相位调制和多通道处理。

6. 红外探测器：

   • 用于检测近红外光谱范围内的辐射。

7. 高频宽带滤波器：

   • 提供优异的频率选择性能，适用于高端通信设备中。

制备方法

• 提拉法：采用碳酸锂和五氧化二铌为原料，在铂金坩埚内沿(001)方向生长晶体。在接近居里温度时施加适当大小的电场，并将最终形成的晶体冷却至室温，以获得高质量无色透明圆柱体。

研究与应用

• 量子光子学：开发高性能光学微结构。
• 超高效集成光子电路：实现更复杂的光电子设备。
• 微波—光转换技术：将传统通信技术推向新的高度。
• 全固态激光器、光学频率梳等领域的应用前景：通过准相位匹配技术（QPM）来优化激光参数，提高输出效率。

铌酸锂以其卓越的电光性能被广泛应用于现代通信领域，尽管制造过程具有一定的挑战性，但其在科学研究和技术发展方面展现出了巨大潜力。