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Chemical Name:
MEK;Meetco;Butanon;BUTANONE;Meketone;OMNISOLV;2-Butanon;2-butanal;FEMA 2170;C2H5COCH3
Molecular Formula:
Formula Weight:
MOL File:

2-Butanone Properties

Melting point:
-87 °C
Boiling point:
80 °C(lit.)
vapor density 
2.49 (vs air)
vapor pressure 
71 mm Hg ( 20 °C)
refractive index 
n20/D 1.379(lit.)
2170 | 2-BUTANONE
Flash point:
26 °F
storage temp. 
Relative polarity
Water Solubility 
290 g/L (20 ºC)
Stable. Highly flammable. Incompatible with oxidizing agents, bases, strong reducing agents. Protect from moisture.
CAS DataBase Reference
78-93-3(CAS DataBase Reference)
NIST Chemistry Reference
EPA Substance Registry System
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes  F,Xi,T
Risk Statements  11-36-66-67-39/23/24/25-23/24/25
Safety Statements  9-16-45-36/37
RIDADR  UN 1193 3/PG 2
WGK Germany  1
RTECS  EL6475000
HazardClass  3
PackingGroup  II
Hazardous Substances Data 78-93-3(Hazardous Substances Data)
Toxicity LD50 orally in rats: 6.86 ml/kg (Smyth)
Signal word:
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H225 Highly Flammable liquid and vapour Flammable liquids Category 2 Danger P210,P233, P240, P241, P242, P243,P280, P303+ P361+P353, P370+P378,P403+P235, P501
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H336 May cause drowsiness or dizziness Specific target organ toxicity,single exposure; Narcotic effects Category 3 Warning P261, P271, P304+P340, P312,P403+P233, P405, P501
Precautionary statements:
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

2-Butanone price More Price(15)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
TCI Chemical E0140 2-Butanone [for Spectrophotometry] >99.0%(GC) 78-93-3 25mL $21 2017-12-01 Buy
TCI Chemical E0140 2-Butanone [for Spectrophotometry] >99.0%(GC) 78-93-3 500mL $37 2017-12-01 Buy
Alfa Aesar 022924 2-Butanone, HPLC Grade, 99.5+% 78-93-3 *4x1L $153 2018-11-16 Buy
Alfa Aesar 022924 2-Butanone, HPLC Grade, 99.5+% 78-93-3 1L $53.2 2018-11-16 Buy
Alfa Aesar L13185 2-Butanone, 99% 78-93-3 2500ml $60.1 2018-11-13 Buy

2-Butanone Chemical Properties,Uses,Production


2-Butanone is a stable, highly flammable chemical. It is incompatible with oxidising agents, bases, and strong reducing agents. It is a colourless liquid with a sharp, sweet odour. 2-Butanone is produced in large quantities. It is used as a solvent and nearly half of its use is in paints and other coatings because it will quickly evaporate into the air and it dissolves many substances. It is also used in glues and as a cleaning agent.

Chemical Properties

colourless liquid


2-Butanone is an eye irritant that has been used as a water soluble photoinitiator for the photopolymerization of methacrylic acid (MAA).


ChEBI: A dialkyl ketone that is a four-carbon ketone carrying a single keto- group at position C-2.


As solvent; in the surface coating industry; manufacture of smokeless powder; colorless synthetic resins.

General Description

Methyl ethyl ketone (MEK) is a colourless liquid with a sweet and sharp odour. It is soluble in alcohol, ether, acetone benzene, and water. It is a solvent often found in mixtures with acetone, ethyl acetate, n-hexane, toluene, or alcohols. It has applications in the surface coating industry and in the de-waxing of lubricating oils. MEK is used in the manufacture of colourless synthetic resins, artificial leather, rubbers, lacquers, varnishes, and glues.

Air & Water Reactions

Highly flammable. Slightly soluble in water.

Reactivity Profile

Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides. Ketones are reactive with many acids and bases liberating heat and flammable gases (e.g., H2). The amount of heat may be sufficient to start a fire in the unreacted portion of the ketone. Ketones react with reducing agents such as hydrides, alkali metals, and nitrides to produce flammable gas (H2) and heat. Ketones are incompatible with isocyanates, aldehydes, cyanides, peroxides, and anhydrides. They react violently with aldehydes, HNO3, HNO3 + H2O2, and HClO4.

Health Hazard

May cause toxic effects if inhaled or ingested/swallowed. Contact with substance may cause severe burns to skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Fire Hazard

Flammable/combustible material. May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

2-Butanone Preparation Products And Raw materials

Raw materials

Preparation Products

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