2-Methylbutane

Description :

Isopentane, also known as 2-methylbutane, is simply CH3-CH(CH3)-CH2-CH3. Molecular weight 72.15. Colorless flammable liquid. It's scented. Melting point -159.9ºC, boiling point 27.8ºC, relative density 0.6201, refractive index 1.3537. Insoluble in water, slightly soluble in ethanol, soluble in hydrocarbon and ether.Isopentane is a colorless flammable liquid. Extremely flammable, its vapor and air can form explosive mixtures. In case of open fire and high heat, it is easy to burn and explode. It can react strongly with oxidants and even cause combustion. Its vapor is heavier than air, can spread to a considerable distance at a low point, and will lead to a return fire in case of open fire. In case of high heat, the pressure inside the container increases, and there is a risk of cracking and explosion.

Uses:

Its volatility and low surface tension are widely used in chemical laboratories and industrial production.

Preparation:

There are two main ways to prepare isopentane

Separation from natural gas: isopentane is separated from natural gas by distillation and fractionation using natural gas.

By alkylation reaction: ethylene is reacted with methylating agent to produce isopentane.

Safety information:

As a flammable liquid, isopentane has a low combustion limit and will burn violently when encountering fire sources such as open flame, high temperature and open flame.

When using isopentane, care should be taken to avoid contact with the skin, eyes and respiratory tract to avoid irritation and damage. Use appropriate personal protection, such as goggles, gloves, and respiratory protection.

Isopentane should be stored in a dry, well-ventilated place, away from open flames and heat sources.

The use and storage of isopentane should be in strict compliance with safe operating procedures for combustible substances.

Leakage emergency treatment

Quickly evacuate the personnel from the contaminated area to the safety zone, isolate them, and strictly restrict access. Cut off the fire. Emergency personnel are advised to wear self-contained positive pressure breathing apparatus and fire protective clothing. Cut off the source of leakage as much as possible. Prevent access to restricted Spaces such as sewers and flood drains.

Small amount of leakage: absorption with activated carbon or other inert materials. It is also possible to scrub with an emulsion made of a non-combustible dispersant, which is diluted and placed in the wastewater system.A large number of leaks: build a embankment or dig a pit to contain; Cover with foam to reduce steam hazards. Transfer to a tank truck or special collector with an explosion-proof pump for recycling or transport to a waste disposal site.

 Protective measure

Respiratory system protection: Generally no special protection is required, but it is recommended to wear a self-priming filter gas mask (half mask) under special circumstances.

Eye protection: Wear chemical safety glasses if necessary.

Body protection: Wear ESD clothes.

Hand protection: Wear anti-benzene and oil-resistant gloves.

Others: Smoking is strictly prohibited at the work site and long-term repeated contact is avoided.

First aid measure

Skin contact: Remove contaminated clothing and rinse skin thoroughly with soapy water and clean water.

Eye contact: Lift eyelids and rinse with running water or saline. Seek medical attention.

Inhalation: Quickly remove from the scene to fresh air. Keep your airway clear. Administer oxygen if breathing is difficult. If breathing stops, give artificial respiration immediately. Seek medical attention.Ingestion: Drink enough warm water to induce vomiting and seek medical attention.