3-Methyl-2-butanone

3-Methyl-2-butanone

Names
IUPAC name 3-Methyl-2-butanone
Other names Isopropyl methyl ketone, MIPK, 2-Acetyl propane 3-Methyl-2-butanone
Identifiers
CAS Number	563-80-4 Y
3D model (JSmol)	Interactive image
ChemSpider	10777
ECHA InfoCard	100.008.423
EC Number	209-264-3
PubChem CID	11251
CompTox Dashboard (EPA)	DTXSID0022062
SMILES CC(C)C(=O)C
Properties
Chemical formula	C5H10O
Molar mass	86.13 g/mol
Appearance	Colorless liquid
Odor	Acetone-like
Density	0.803 g/cm³ (20 °C)
Melting point	−92 °C (−134 °F; 181 K)
Boiling point	92 °C (198 °F; 365 K)
Solubility in water	6-8.2 g/l (20 °C)
Vapor pressure	8.6 kPa (20 °C)
Magnetic susceptibility (χ)	-58.45·10−6 cm3/mol
Refractive index (nD)	1.389 (20 °C)
Viscosity	0.48 mPa·s (20 °C)
Hazards
Flash point	5 °C (41 °F)
U.S. Permissible exposure limit (PEL)	none
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

3-methyl-2-butanone, also called methyl isopropyl ketone (MIPK), is an organic compound. It is a ketone with 4 carbon atoms on the main chain and a methyl group coming off the third carbon atom.

3-Methyl-2-butanone, also known as methyl isopropyl ketone, is a chemical compound with the molecular formula C5H10O. It is an organic compound that belongs to the class of chemicals known as ketones. This colorless liquid has a sharp, pleasant odor and is used in a variety of industrial applications, including as a solvent in paints, coatings, and chemical processes.

Structure and Properties

3-Methyl-2-butanone consists of five carbon atoms, ten hydrogen atoms, and one oxygen atom. The chemical structure of the compound includes a ketone group (C=O), which means that there is a carbonyl group (a carbon atom double-bonded to an oxygen atom) within the molecule. In this case, the carbonyl group is attached to two carbon atoms, one of which has a methyl group (-CH3) attached, giving the compound its name.

The chemical structure can be described as: - A ketone group at the second position (2-butanone) - A methyl group (-CH3) attached to the third carbon atom (3-methyl)

This arrangement gives the compound its specific chemical and physical properties.

Physical properties of 3-methyl-2-butanone include: - Appearance: Colorless liquid - Odor: Sharp, pleasant odor, similar to other ketones - Boiling point: Around 94°C (201°F) - Melting point: -85°C (-121°F) - Density: Approximately 0.8 g/cm³ at room temperature - Solubility: Slightly soluble in water but very soluble in organic solvents like ethanol, acetone, and ether.

Production

3-Methyl-2-butanone can be produced through a variety of chemical reactions, including oxidation reactions of alcohols. For example, it can be made by oxidizing 3-methyl-2-butanol, a type of alcohol that can easily be converted into the corresponding ketone. The production process often involves industrial methods that allow for large quantities of the compound to be produced for use in commercial products.

Uses

3-Methyl-2-butanone has several industrial and commercial uses due to its properties as a solvent and its ability to dissolve different substances. Some common uses include:

- Solvent: One of the primary uses of 3-methyl-2-butanone is as a solvent in the production of paints, coatings, and varnishes. It helps dissolve and mix other chemicals and materials, making it easier to apply and ensuring smooth finishes. - Chemical Intermediate: It is used as an intermediate in the synthesis of other chemicals. In industrial chemical reactions, it can serve as a building block to create more complex molecules. - Extraction Process: The compound is sometimes used in extraction processes, where it helps separate specific chemicals from mixtures. - Laboratory Uses: In scientific laboratories, 3-methyl-2-butanone is used in research and development for testing and chemical analysis.

Safety and Hazards

Like many chemicals, 3-methyl-2-butanone must be handled with care to avoid health and safety risks. The compound is flammable and can easily ignite if exposed to open flames or sparks. It should be stored away from heat sources and kept in well-ventilated areas.

Exposure to 3-methyl-2-butanone, especially in high concentrations, can cause irritation to the skin, eyes, and respiratory system.