Specifications

Chinese name: Methyl ethyl ketone
Name: 2-Butanone
Alias: 2-butanone, 2-oxobutane, methyl ethyl ketone, butanone
Chemical formula: C4H8O
Molecular weight: 72.11
CAS login number: 78-93-3
EINECS accession number: 201-159-0
Appearance and properties: colorless liquid, like acetone smell.

Melting point (℃):-85.9

Relative density (water = 1):0.81

Boiling point (℃):79.6

Relative vapor density (air = 1):2.42

Solubility: Soluble in water, ethanol, ether, miscible in oil.

Basic information

Methyl ethyl ketone is an organic compound with a chemical formula of CH3COCH2CH3 and a molecular weight of 72.11. Colorless transparent liquid, similar to acetone odor. Volatile. With ethanol, ether, benzene, chloroform, oil miscible. Soluble in 4 parts of water, but the solubility decreases when the temperature increases, and can form an azeotropic mixture with water. Low toxicity, median lethal dose (rat, oral) 3300 mg/kg. Flammable, vapors can form explosive mixtures with air. High concentrations of steam are narcotic.

Application areas

1. Used as a solvent for cellulose acetate, acrylic resin, alkyd resin, paint, ink, etc., as a binder for dyes, lubricating oil dewaxing agent, vulcanization accelerator, etc.

2. Used as a reagent for the determination of cadmium, copper and mercury, a standard substance for chromatographic analysis and a solvent for semiconductor lithography

3.GB 2760-96 stipulates as edible spices allowed to be used. Mainly used for the preparation of cheese, coffee and banana flavor. It can also be used as an extraction solvent.

4, methyl ethyl ketone is mainly used as a solvent, such as for lubricating oil dewaxing, coating industry and a variety of resin solvents, vegetable oil extraction process and refining process of azeotropic distillation, its advantage is strong solubility, low volatility than acetone, is a medium boiling point ketone solvent. Butanone is also an intermediate in the preparation of medicines, dyes, detergents, fragrances, antioxidants and certain catalysts. It is used as a developer after integrated circuit lithography in the electronics industry for the synthesis of anti-peeling agent methyl ethyl ketone oxime, polymerization catalyst methyl ethyl ketone peroxide, corrosion inhibitor methyl pentynol, etc.

5. Butanone is the raw material for the preparation of acaricide pyrazine.

6. It is a raw material for organic synthesis and can be used as a solvent. It is used as a dewaxing agent for lubricating oil in the oil refining industry, and is also used in industries such as medicine, coatings, dyes, detergents, perfumes and electronics. Solvents for liquid inks. Cosmetics used in the manufacture of nail polish, as a low boiling point solvent, can reduce the viscosity of nail polish, quick drying.

Packaging, transportation and safety

Precautions for storage: Store in a cool and ventilated warehouse. Keep away from fire and heat source. The temperature of the warehouse should not exceed 30 ℃. Keep container sealed. It should be stored separately from oxidizing agent, reducing agent and alkali, and mixed storage should not be allowed. Explosion-proof lighting and ventilation facilities shall be adopted. It is forbidden to use mechanical equipment and tools that are easy to produce sparks. The storage area should be equipped with leakage emergency treatment equipment and suitable containment materials.

Precautions for transportation: transportation vehicles shall be equipped with corresponding varieties and quantities of fire fighting equipment and leakage emergency treatment equipment. recommend morning and evening transportation in summer. The tank (tank) truck used in transportation shall be provided with grounding chain, and the hole partition plate can be set in the tank to reduce static electricity generated by vibration. It is strictly prohibited to mix with oxidizing agents, reducing agents, alkalis, edible chemicals, etc. During transportation, it shall be protected from sun exposure, rain and high temperature. Stopover should be away from fire, heat, high temperature zone. The exhaust pipe of the vehicle carrying the goods must be equipped with fire retardant device, and it is forbidden to use mechanical equipment and tools that are easy to produce sparks for loading and unloading. Road transportation shall be carried out according to the prescribed route, and do not stop in residential areas and densely populated areas. It is forbidden to slip away during railway transportation. It is strictly prohibited to use wooden ships and cement ships for bulk transportation.

Precautions for packaging: small opening steel barrel; Ordinary wooden case outside ampoule bottle; Ordinary wooden case outside threaded glass bottle, iron cap pressing glass bottle, plastic bottle or metal barrel (can).