n-butyllithium

English Name: n-Butyllithium

CAS No.: 109-72-8

Packaging/Storage: 1. Packaged in 500ml bottles, 30L steel cylinders, or 300/500L storage tanks. 2. During use, this product should be isolated from air and moisture to the greatest extent possible, stored below 2°C~8°C, and used under the protection of nitrogen or argon. 3. Avoid high temperatures and impacts, do not touch open flames, and prohibit contact with air and water; store at low temperatures.

Molecular Formula: C4H9Li

Molecular Weight: 64.09

Basic Information

Appearance: Colorless or slightly yellow transparent liquid

Density: 0.68g/ml (20°C)

Boiling Point: 68~70°C (refers to the solvent, not the solute)

Flash Point: -12°C

Concentration: 1.0M~2.5M (n-hexane solution)

Properties

Reacts violently with water and air: It reacts instantly with water to generate butane and lithium hydroxide, releasing a large amount of heat. Meanwhile, it is extremely sensitive to air.

Flammable: In humid air, due to the violent exothermic reaction, flammable butane is released.

Stability: It needs to be stored and used at low temperatures.

Applications

1. Strong base/lithiation reagent: Used for the synthesis of pharmaceutical intermediates, agrochemicals, and liquid crystal materials.

2. Lithium-halogen exchange reaction: Used to prepare organolithium compounds such as aryllithium and vinyllithium.

3. Anionic polymerization initiator: Used to produce synthetic rubbers, such as low-cis polybutadiene rubber, isoprene rubber, and SBS thermoplastic elastomer.

Packaging/Storage

1. Packaged in 500ml bottles, 30L steel cylinders, or 300/500L storage tanks.

2. During use, this product should be isolated from air and moisture to the greatest extent possible, stored below 2°C~8°C, and used under the protection of nitrogen or argon.

3. Avoid high temperatures and impacts, do not touch open flames, and prohibit contact with air and water; store at low temperatures.