Overview
Triethylborane (TEB) is an organoboron compound widely used in industrial chemistry due to its strong reducing properties and reactivity. It serves as a catalyst in polymerization reactions and is employed in rocket propellants as an ignition enhancer. TEB is highly pyrophoric, igniting spontaneously upon exposure to air, requiring strict handling protocols. Developed in the mid-20th century, TEB gained prominence in aerospace and chemical manufacturing. Its ability to initiate radical reactions makes it valuable in producing polyethylene and other polymers. Despite its hazards, controlled use in specialized applications ensures its continued relevance in B2B sectors.
Physical and Chemical Properties
TEB is a colorless to pale yellow liquid with a density of 0.696 g/cm³. It has a low melting point (-92°C) and boils at 95°C. The compound is insoluble in water but dissolves readily in hydrocarbons like hexane or toluene. Its pyrophoric nature necessitates storage under inert gases to prevent accidental ignition. Chemically, TEB acts as a potent reducing agent, reacting violently with oxidizers and water. It forms stable complexes with Lewis bases, enabling its use in catalysis. The boron center’s electrophilic character facilitates its role in organic synthesis, particularly in hydroboration reactions.
Main Applications
TEB’s primary use is as a catalyst in Ziegler-Natta polymerization, where it accelerates the production of polyolefins like polyethylene. In aerospace, it serves as a hypergolic igniter for rocket fuels, ensuring immediate combustion upon contact with oxidizers. It also finds niche roles in semiconductor manufacturing and pharmaceutical synthesis. Additionally, TEB is employed in laboratory settings for boron incorporation into organic molecules. Its reactivity with oxygen scavengers makes it useful in creating oxygen-free environments for sensitive processes. Industrial users prioritize high-purity grades to minimize side reactions.
Safety and Storage
Due to its pyrophoricity, TEB must be handled under inert atmospheres (e.g., nitrogen or argon) using flame-resistant equipment. Storage containers should be sealed and labeled clearly, with secondary containment to mitigate leaks. Facilities must have fire suppression systems and trained personnel. Exposure risks include severe burns and respiratory irritation. PPE such as flame-retardant suits, gloves, and face shields is mandatory. Spills require immediate inert gas blanketing and specialized absorbents. Always consult the Safety Data Sheet (SDS) for emergency procedures.
B2B Procurement Guide
When sourcing TEB, prioritize suppliers with ISO certifications and proven track records in hazardous chemical distribution. Request batch-specific certificates of analysis (CoA) to verify purity (typically 95–99%). Packaging options include stainless-steel cylinders or ampoules under nitrogen. Bulk purchases may qualify for discounts, but ensure transport complies with DOT/IATA regulations for flammable liquids. Negotiate incoterms (e.g., DDP) to clarify liability. For startups, consider smaller quantities from local distributors to reduce storage risks. Always audit supplier safety protocols.
Related Manufacturers
- 主营：单片机、RENESAS瑞萨、TI德州仪器、ADI亚德诺、国产芯片替代、XILINX/赛灵思、可编程逻辑器件、电源芯片、接口芯片、DSP数字信号处理器、时钟芯片、中科芯、阿尔特拉、存储芯片、以太网控制芯片、射频芯片、恩智浦、ST意法、中微爱芯、转换芯片、芯科、三星存储
- 主营：ne3503m04、ne3512s02、lt8410edc、sp0503bah、iso1044bd、b02p-vl-r、sy8032abc、hip2100ib、tps22914b、保险丝、比较器、ase5s4010、触发器、解码器、thvd1500d、thvd1451d、opa4172id、连接器、mx1a-11nw、lshd-7501、ths4531id、二极管、hsmm-c170、lf353dre4、装原封
- 主营：费斯托电磁阀、FESTO气缸、ASCO电磁阀、喜开理气缸、CAMOZZI电磁阀、派克软管、THK、诺冠电磁阀、意大利SIRAI电磁阀、贺德克蓄能器、易福门传感器、罗克韦尔、宝德电磁阀、Atos溢流阀、Aventics气缸、danfoss压力开关
- 主营：FESTO过滤减压阀、喜开理电磁阀、宝硕电磁阀、P+F传感器、PARKER电磁阀、百弗不锈钢电磁阀、BIFOLD电磁阀、MTL、ASCO防爆电磁阀、BAUMER编码器、科隆电磁流量计
- 主营：比例溢流阀
- 主营：液压阀、液压泵、液压马达、液压油缸、油泵电机组、液压系统、电磁阀、电动泵、阀门定位器
- 主营：齿轮泵、叶片泵、柱塞泵、变量泵、马达、换向阀、比例阀、液压阀、防爆电磁阀、软管、过滤器
- 主营：摆线齿轮泵、NOP油泵、双向摆线泵、进口冷却泵、柱塞泵、变量柱塞泵、电磁阀、电磁换向阀、哈伯叶片泵、哈伯双联叶片泵
- 主营：称重传感器、测力传感器、称重模块、张力传感器、称重显示器、称重控制器、多维力传感器、车载称重系统、叉车称重系统
- 主营：PARKER、柱塞泵、放大器、传感器、ATOS阿托斯、派克柱塞泵、派克比例阀
- 主营：发电机、发动机、净水泵、高压泵、全铜电机、汽油水泵、永磁电机、无刷电机、汽油发电焊机、应急发电电焊机
- 主营：控制器、照度计、大学生、eflat-hg-ii、商用飞机、气动阀门、真空成型机、手持验光计、转速传感器、压力测试仪、高压发生器、方程式电机、汽车控制开发、6dr5020-0ng03-0aa0、标准光源灯管
- 主营：比例阀、单向阀、二位二通气控阀、两位三通气控阀、接头、管件
- 主营：测试仪、压油缸、电磁阀、控制阀、弯管机、仪表阀、活塞阀、快插接头、气动滑台、闭锁接头、直角接头、阀组备件、螺纹接头、柴油过滤、穿板接头、深度滤芯、阀组附件、连接底板、焊接接头、排放阀组、密封套件、辅助插头、接头套筒、中高压接头、管对管接头
- 主营：黑体辐射源、高温黑体炉、超低温面源、热像仪、低温黑体炉、热电偶自动检定系统、温湿度检定箱、高精度恒温水槽、零点恒温器、表面温度计校验装置、传感探测器