| Butanone | |
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| Other names | Methyl ethyl ketone (MEK); Methylpropanone; Ethylmethylketone |
| Identifiers | |
| CAS number | [78-93-3] |
| RTECS number | EL6475000 |
| SMILES | CCC(=O)C |
| Properties | |
| Molecular formula | C4H8O CH3(CO)C2H5 |
| Molar mass | 72. CAS registry numbers are unique numerical identifiers for Chemical compounds Polymers biological sequences mixtures and Alloys They are also referred to Registry of Toxic Effects of Chemical Substances ( RTECS) is a Database of Toxicity information compiled from the open scientific literature without reference A chemical formula is a way of expressing information about the Atoms that constitute a particular Chemical compound, and how the relationship between those atoms changes Molar mass, symbol M, is the Mass of one mole of a substance ( Chemical element or Chemical compound) 11 g/mol |
| Appearance | Colorless liquid |
| Density | 0. The density of a material is defined as its Mass per unit Volume: \rho = \frac{m}{V} Different materials usually have different 8050 g/cm³, liquid |
| Melting point |
−86 °C (187 K) |
| Boiling point |
80 °C (353 K) |
| Solubility in water | 29 g/100 ml (20 °C) |
| Viscosity | 0,43 cP at 20 °C |
| Structure | |
| Dipole moment | 2. The melting point of a solid is the temperature range at which it changes state from solid to Liquid. The boiling point of a liquid is the temperature at which the Vapor pressure of the liquid equals the environmental pressure surrounding the liquid Solubility is the characteristic Physical property referring to the ability of a given substance the Solute, to dissolve in a Solvent. Water is a common Chemical substance that is essential for the survival of all known forms of Life. Viscosity is a measure of the resistance of a Fluid which is being deformed by either Shear stress or Extensional stress. The poise (symbol P pwɑːz is the unit of dynamic Viscosity in the Centimetre gram second system of units. In physics there are two kinds of dipoles ( Hellènic: di(s- = two- and pòla = pivot hinge An electric dipole is a 76 D |
| Hazards | |
| MSDS | External MSDS |
| EU classification | Flammable (F) Irritant (Xi) |
| NFPA 704 |
 3
1
0
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| R-phrases | R11, R36, R66, R67 |
| S-phrases | (S2), S9, S16 |
| Flash point | −9 °C |
| Autoignition temperature |
505 °C |
| Related compounds | |
| Related Ketones | Acetone; 3-pentanone; 3-Methylbutanone |
| Supplementary data page | |
| Structure and properties |
n, εr, etc. The debye (symbol D) is a non- SI, CGS unit of electrical dipole moment. A material safety data sheet ( MSDS) is a form containing data regarding the properties of a particular substance This page provides supplementary chemical data on Butanone Council Directive 67/548/EEC of 27 June 1967 on the approximation of laws regulations and administrative provisions relating to the classification packaging and labelling Symbolism The four divisions are typically color-coded with blue indicating level of Health Hazard, red indicating R-phrases (short for Risk Phrases) are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous R-phrases (short for Risk Phrases) are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous R-phrases (short for Risk Phrases) are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous R-phrases (short for Risk Phrases) are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous R-phrases (short for Risk Phrases) are defined in Annex III of European Union Directive 67/548/EEC: Nature of special risks attributed to dangerous S-phrases are defined in Annex IV of European Union Directive 67/548/EEC: Safety advice concerning dangerous substances and preparations. S-phrases are defined in Annex IV of European Union Directive 67/548/EEC: Safety advice concerning dangerous substances and preparations. S-phrases are defined in Annex IV of European Union Directive 67/548/EEC: Safety advice concerning dangerous substances and preparations. S-phrases are defined in Annex IV of European Union Directive 67/548/EEC: Safety advice concerning dangerous substances and preparations. The flash point of a flammable liquid is the lowest Temperature at which it can form an ignitable mixture in air The autoignition temperature or kindling point of a substance is the lowest temperature at which it will spontaneously ignite in a normal atmosphere without an external A ketone (pronounced as key tone) is either the Functional group characterized by a Carbonyl group (O=C linked to two other Carbon atoms or Acetone (also known as propanone, dimethyl ketone, 2-propanone, propan-2-one and β-ketopropane) is a colorless mobile flammable 3-Pentanone (also known as diethyl ketone but with systematic name pentan-3-one) is a colorless liquid Ketone with an odor like that of Acetone This page provides supplementary chemical data on Butanone This page provides supplementary chemical data on Butanone The refractive index (or index of Refraction) of a medium is a measure for how much the speed of light (or other waves such as sound waves is reduced inside the medium Measurement The relative static permittivity εr can be measured for static Electric fields as follows first the Capacitance of a test |
| Thermodynamic data |
Phase behaviour Solid, liquid, gas |
| Spectral data | UV, IR, NMR, MS |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references |
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Butanone is a manufactured organic chemical. This page provides supplementary chemical data on Butanone This page provides supplementary chemical data on Butanone Ultraviolet-visible spectroscopy or ultraviolet-visible spectrophotometry ( UV/ VIS) involves the Spectroscopy of Photons in the UV-visible Infrared spectroscopy (IR spectroscopy is the subset of Spectroscopy that deals with the Infrared region of the Electromagnetic spectrum. Nuclear magnetic resonance spectroscopy, most commonly known as NMR spectroscopy, is the name given to a technique which exploits the magnetic properties of certain nuclei Mass spectrometry is an analytical technique that identifies the chemical composition of a compound or sample based on the Mass-to-charge ratio of charged particles In Chemistry, the standard state of a material is its state at 1 bar (100 Kilopascals exactly Organic chemistry is a discipline within Chemistry which involves the scientific study of the structure properties composition reactions, and preparation It is a colorless liquid with a sharp, sweet butterscotch odor reminiscent of acetone. Acetone (also known as propanone, dimethyl ketone, 2-propanone, propan-2-one and β-ketopropane) is a colorless mobile flammable It is a ketone, also known as methyl ethyl ketone (MEK). A ketone (pronounced as key tone) is either the Functional group characterized by a Carbonyl group (O=C linked to two other Carbon atoms or
Butanone is produced in large quantities. Nearly half of it is used in paints and other coatings because it will quickly evaporate. Paint is any Liquid, liquifiable or mastic composition which after application to a substrate in a thin layer is converted to an opaque Solid It dissolves many substances and is used as a solvent in processes involving gums, resins, cellulose acetate and nitrocellulose coatings and in vinyl films. Solvation, commonly called dissolution, is the process of attraction and association of Molecules of a Solvent with molecules or Ions of a A solvent is a liquid or gas that dissolves a solid liquid or gaseous Solute, resulting in a Solution. Natural gums are Polysaccharides of natural origin capable of causing a large Viscosity increase in solution even at small concentrations Resin, not to be confused with Rosin, is a Hydrocarbon Secretion of many Plants particularly coniferous trees. Cellulose acetate, first prepared in 1865 is the Acetate Ester of Cellulose. Nitrocellulose (also cellulose nitrate, flash paper) is a highly flammable compound formed by Nitrating Cellulose through exposure to It is also used in the synthetic rubber industry, It is used in manufacturing plastics, textiles, in the production of paraffin wax, and in household products such as lacquer, varnishes, paint remover, a denaturing agent for denatured alcohol, glues and as a cleaning agent. In Chemistry, chemical synthesis is purposeful execution of Chemical reactions in order to get a product, or several products In chemistry paraffin is the common name for the Alkane Hydrocarbons with the general formula C n H2 n +2 In a general sense lacquer is a clear or coloured Varnish, that dries by solvent evaporation and often a curing process as well that produces a hard durable finish in any Varnish is a transparent, hard protective finish or film primarily used in Wood finishing but also for other materials Denatured alcohol is Ethanol which has been rendered toxic or otherwise undrinkable and in some cases dyed Glue or adhesive is a compound that adheres or bonds two items together MEK is also used in dry erase markers as the solvent of the erasable dye. It is used for synthesis of methyl ethyl ketone peroxide, a catalyst for some polymerization reactions. Methyl ethyl ketone peroxide (MEKP is an Organic peroxide, a high explosive similar to Acetone peroxide. In Polymer chemistry, polymerization is a process of reacting Monomer Molecules together in a Chemical reaction to form three-dimensional networks It is highly flammable. Flammability is the ease with which a substance will ignite causing Fire or Combustion. It is not considered a large health threat.
Butanone occurs as a natural product. It is made by some trees and found in some fruits and vegetables in small amounts. The term fruit has different meanings dependent on context and the term is not synonymous in Food preparation and Biology. The term " vegetable " generally means the edible parts of Plants The definition of the word is traditional rather than Scientific, however It is also released to the air from car and truck exhausts. This article is about the semi-truck For the North American use of the word see Pickup truck.
Health effects
The known health effects to people from exposure to butanone are slight irritation of the nose, throat, skin, and eyes. Health effects, health impacts or health risks are changes in Health resulting from exposure to a source Irritation or exacerbation, in Biology and Physiology, is a state of Inflammation or painful reaction to Allergy or cell-lining damage There are no known cases of any humans dying from breathing butanone alone. It is basically harmless. However, if butanone is breathed along with other chemicals that damage health, it can increase the amount of damage that occurs.
Serious health effects in animals have been seen only at very high levels. When breathed, these effects included birth defects (Schwetz et al. A congenital disorder is a disease or disorder that is present at birth 1991. Fund. Appl. Toxicol. 16:742-748), loss of consciousness, and death. Consciousness has been defined loosely as a constellation of attributes of Mind such as Subjectivity, Self-awareness, Sentience, and the When swallowed, rats had nervous system effects including drooping eyelids and uncoordinated muscle movements. Rats are various medium sized long-tailed Rodents of the superfamily Muroidea The nervous system is a Network of specialized cells that communicate information about an animal's surroundings and itself There was no damage to the ability to reproduce. Mice who breathed low levels for a short time showed temporary behavioral effects. Mild kidney damage was seen in animals that drank water with low levels of butanone for a short time. The kidneys are complicated organs that have numerous biological roles
There are no long-term studies with animals either breathing or drinking butanone.
Methyl ethyl ketone is listed as a Table II precursor under the United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances[1]. The 1988 United Nations Convention Against Illicit Traffic in Narcotic Drugs and Psychotropic Substances is one of three major drug control treaties currently in force
External links
- International Chemical Safety Card 0179
- National Pollutant Inventory - Methyl Ethyl Ketone Fact Sheet
- NIOSH Pocket Guide to Chemical Hazards
- US EPA Datasheet
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