What is the name of the compound 2-hexanone?
2-Hexanone is also known as methyl n-butyl ketone, MBK, or propyl acetone. It is a clear, colorless liquid with a sharp odor. It dissolves very easily in water, and can evaporate easily into the air as a vapor.
Is 2-hexanone heavier than air?
Vapors heavier than air. 2-Hexanone is also known as methyl n-butyl ketone, MBK, or propyl acetone. It is a clear, colorless liquid with a sharp odor. It dissolves very easily in water, and can evaporate easily into the air as a vapor.
Is it safe to use 2-hexanone as a solvent in bioreactors?
It is recommended as a solvent because it is photochemically inactive; however it has a very low safe threshold limit value. 2-Hexanone is absorbed through the lungs, orally and dermally and its metabolite, 2,5-hexanedione, is neurotoxic.
What is the standard state of 2-hexanone in KPA?
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). ?) 2-Hexanone ( methyl butyl ketone, MBK) is a ketone used as a general solvent and in paints. It dissolves cellulose nitrate, vinyl polymers and copolymers, and natural and synthetic resins.
What type of compound does 2-hexanone represent?
2-Hexanone (methyl butyl ketone, MBK) is a ketone used as a general solvent and in paints.
What does 2-hexanone smell like?
COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR. Colorless liquid with an acetone-like odor.
Is 2-hexanone a ketone?
2-HEXANONE (METHYL N-BUTYL KETONE; METHYL BUTYL KETONE)†
What is the structure of 2-hexanone?
C6H12O2-Hexanone / Formula
Is hexanone soluble in water?
2-Hexanone is also known as methyl n-butyl ketone, MBK, or propyl acetone. It is a clear, colorless liquid with a sharp odor. It dissolves very easily in water and can evaporate easily into the air as a vapor.
Is acetone a solvent?
Acetone is a clear, colorless liquid. It is a solvent that can dissolve or break down other materials, such as paint, varnish, or grease.
Is 3-hexanone soluble in water?
3-Hexanone is a very hydrophobic molecule, practically insoluble in water and relatively neutral.
Does 2-hexanone have hydrogen bonding?
2-hexanone is polar but is unable to experience hydrogen bonding. As stated earlier hydrogen bonding requires that an H is bonded to N, O, or F. Although 2-hexanone is a ketone that contains a C=O. bond, the O is not bonded to an H atom.
Are ketones polar or nonpolar?
polar moleculesvan der Waals dipole-dipole attractions: Both aldehydes and ketones are polar molecules because of the presence of the carbon-oxygen double bond.
Which of the following produces 2-hexanone?
n-butyl magnesium bromide reacts with acetaldehyde followed by hydrolysis to form 2- hexanol by Grignard reaction and then chromic acid oxidation results in the formation of 2-hexanone. Hydroboration oxidation of 1-Hexyne results in the formation of hexan-1-al.
Is 2-hexanone volatile?
Present in hop oil (Humulus lupulus), potato (Solanum tuberosum) and groundnuts (Arachis hypogaea) 2-Oxohexane is a volatile organic compound.
Is 2 butanone a solid or liquid?
2-Butanone is a manufactured chemical but it is also present in the environment from natural sources. It is a colorless liquid with a sharp, sweet odor. It is also known as methyl ethyl ketone (MEK). 2-Butanone is produced in large quantities.
What is the odor of 2 butanone?
sweet odorSummary: 2-Butanone is a manufactured chemical but it is also present in the environment from natural sources. It is a colorless liquid with a sharp, sweet odor. It is also known as methyl ethyl ketone (MEK).
What does 4 methyl 2 pentanone smell like?
pleasantMethyl isobutyl ketone (MIBK) is the common name for the organic compound 4-methylpentan-2-one, condensed chemical formula (CH3)2CHCH2C(O)CH3....Methyl isobutyl ketone.NamesAppearancecolorless liquidOdorpleasantDensity0.802 g/mL, liquidMelting point−84.7 °C (−120.5 °F; 188.5 K)50 more rows
What does 2 pentanone smell like?
2-Pentanone is a natural product found in Vitis rotundifolia, Aloe africana, and other organisms with data available. Methyl propyl ketone appears as a clear colorless liquid with the odor of fingernail polish.
What does 3 methyl 2 butanone smell like?
Chemical Properties MIPK is a colorless liquid with an acetonelike odor.
Where is 2-hexanone found?from pubchem.ncbi.nlm.nih.gov
GROUNDWATER: 2-Hexanone was found in the Biscayne Aquifer groundwater in the vicinity of an inactive drum recycling facility in Dade County, FL , at a concn of 87 ug/L (1). Detected in two well water samples at an unauthorized hazardous waste disposal site in Lang township, NJ, maximum concn 14,000 ug/L, average concn 7,135 ug/L (2). 2-Hexanone was detected in three of eleven on site wells at an abandoned landfill in Tybouts Corner, DE, concn range 6.1-91.0 ug/L (3). 2-Hexanone was detected in the Biscayne Aquifer groundwater at concns of 150 and 110 ug/L (4). 2-Hexanone was detected, not quantified in the groundwater near waste disposal facilities in Michigan (5) and Quebec (6). 2-Hexanone was not detected in 78 shallow groundwater wells in southern New Jersey (7). For samples collected from 1981 to 1986, 2-hexanone was detected in 0.3%, 11.1%, 3.6% and 1.4% of the hazardous waste site groundwater samples in EPA regions 1, 2, 9 and 10, respectively (8). 2-Hexanone was not analyzed in EPA region 7, and was not detected in regions 3, 4, 5, 6 and 8 (8).
How does 2-hexanone react with the atmosphere?from pubchem.ncbi.nlm.nih.gov
2-Hexanone's production and use as a solvent for a wide variety of materials including lacquers, resins, oils, nitrocellulose, acrylates, vinyl, and alkyd coatings may result in its release to the environment through various waste streams. If released to air, a vapor pressure of 11.6 mm Hg at 25 °C indicates 2-hexanone will exist solely as a vapor in the atmosphere. Vapor-phase 2-hexanone will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 2 days. If released to soil, 2-hexanone is expected to have high mobility based upon an estimated Koc of 134. Volatilization from moist soil surfaces is expected to be an important fate process based upon an estimated Henry's Law constant of 9.3X10-5 atm-cu m/mole. 2-Hexanone may volatilize from dry soil surfaces based upon its vapor pressure. Theoretical 5-day BOD results of 59% and 61.4% degradation indicate that biodegradation may be an important environmental fate process. If released into water, 2-hexanone is not expected to adsorb to suspended solids and sediment based upon the estimated Koc. Volatilization from water surfaces is expected to be an important fate process based upon this compound's estimated Henry's Law constant. Estimated volatilization half-lives for a model river and model lake are 7 and 164 hours, respectively. An estimated BCF of 2 suggests bioconcentration in aquatic organisms is low. Occupational exposure may be through inhalation and dermal contact with this compound at workplaces where 2-hexanone is produced or used. The general population may be exposed to 2-hexanone via inhalation of ambient air and the ingestion of food and drinking water containing 2-hexanone. (SRC)
What is 2-hydroxyl ketone?from wwwn.cdc.gov
Summary: 2-Hexanone is also known as methyl n-butyl ketone, MBK, or propyl acetone. It is a clear, colorless liquid with a sharp odor. It dissolves very easily in water, and can evaporate easily into the air as a vapor. It was used in the past in paint and paint thinner, to make other chemical substances, and to dissolve oils and waxes. It is no longer made or used in the United States because it has harmful health effects. It is formed as a waste product resulting from industrial activities such as making wood pulp and producing gas from coal, and in oil shale operations.
What is the rate constant for the vapor phase reaction of 2-hexanone with photochemically produced hydroxy?from pubchem.ncbi.nlm.nih.gov
The rate constant for the vapor-phase reaction of 2-hexanone with photochemically-produced hydroxyl radicals is 9.01X10-12 cu cm/molecule-sec at 25 °C (SRC) using a structure estimation method (1). This corresponds to an atmospheric half-life of about 2.4 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm (1). 2-Hexanone is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions (2). 2-Hexanone does not contain chromospheres that absorb at wavelengths >290 nm and therefore is not expected to be susceptible to direct photolysis by sunlight (2).
What is the most favorable course of action for a chemical?from pubchem.ncbi.nlm.nih.gov
SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.
Where is 2-hydroxybenzene found?from pubchem.ncbi.nlm.nih.gov
2-Hexanone was found in process water from in-situ coal gasification in Gillette, WY (7 ppm), in the aqueous condensate from low-Btu gasification of rosebud coal in Morgantown, WV (202 ppm), and in retort water from in-situ oil shale processing at Rock Springs, WY (53 ppm) (1). Detected in the leachate of various municipal landfills at an average concn of 0.148 mg/L (2). Identified in leachate discharge into a ditch near an abandoned landfill in Tybouts Corner, DE, 380 ug/L (3). Detected, not quantified in one out of sixty-three effluent and twenty-two intake waters from a wide range of chemical manufacturing areas across the US (4). Detected in the effluent of 8 solid waste disposal facilities in the US with a maximum observed concn of 6,600 ug/L (5) and in the leachate of a waste disposal facility in Japan at a concn of 49.9 ug/L (6). 2-Hexanone was detected in the effluent of an incineration plant in Germany at a concn of 1.6 ug/cu m (7) and in the leachate of a sand and gravel pit near Utica, NY at a concn of 13 ug/L (8).
Is 2-hydroxyl a solvent?from pubchem.ncbi.nlm.nih.gov
2-Hexanone's production and use as a solvent for a wide variety of materials including lacquers, resins, oils, nitrocellulose, acrylates, vinyl, and alkyd coatings (1,2) may result in its result in its release through various waste streams (SRC). 2-Hexanone has been identified as a disinfection by product of ozone treatment in drinking water (3).
How long does a ketone react with hydroxyl radicals?from pubchem.ncbi.nlm.nih.gov
This corresponds to an atmospheric half-life of about 8 days at an atmospheric concentration of 5X10+5 hydroxyl radicals per cu cm (1). Diethyl ketone is not expected to undergo hydrolysis in the environment due to the lack of functional groups that hydrolyze under environmental conditions (2). Diethyl ketone contains chromophores that absorb at wavelengths >290 nm and therefore may be susceptible to direct photolysis by sunlight (2).
Where is diethyl ketone found?from pubchem.ncbi.nlm.nih.gov
SEDIMENT: Diethyl ketone has been identified, not quantified, in sediment beneath a reed bed in Lake Constance, Switzerland (1). The maximum concns were found adjacent to zones of former reed growth, suggesting that diethyl ketone was formed by microbial processes (SRC). Diethyl ketone was detected at concns of 0-0.46 ppb and 0-0.75 ppb in 2 of 3 sediment cores at 3 shallow sites from Walvis Bay off the arid coast of Southwest Africa (2).
How is diethyl ketone exposed?from pubchem.ncbi.nlm.nih.gov
Monitoring data indicate that the general population may be exposed to diethyl ketone via inhalation of ambient air, ingestion of food and drinking water, and dermal contact with products containing diethyl ketone. (SRC)
How does diethyl ketone release to the atmosphere?from pubchem.ncbi.nlm.nih.gov
Diethyl ketone's production and use as a solvent for paints and as a starting material for organic syntheses may result in its release to the environment through various waste streams. Diethyl ketone is a naturally occurring volatile emitted from many plants and fruits. If released to air, a vapor pressure of 37.7 mm Hg at 25 °C indicates diethyl ketone will exist solely as a vapor in the atmosphere. Vapor-phase diethyl ketone will be degraded in the atmosphere by reaction with photochemically-produced hydroxyl radicals; the half-life for this reaction in air is estimated to be 8 days. Diethyl ketone contains chromophores that absorb at wavelengths >290 nm and therefore may be susceptible to direct photolysis by sunlight. If released to soil, diethyl ketone is expected to have high mobility based upon an estimated Koc of 82. Volatilization from moist soil surfaces is expected to be an important fate process based upon a Henry's Law constant of 5.0X10-5 atm-cu m/mole. Diethyl ketone may volatilize from dry soil surfaces based upon its vapor pressure. BODs of 50.8% and 38% of theoretical over a 10 day incubation period using the standard BOD dilution techniques and acclimated sewage inocula suggest that biodegradation may be an important environmental fate process. If released into water, diethyl ketone is not expected to adsorb to suspended solids and sediment based upon the estimated Koc. Volatilization from water surfaces is expected to be an important fate process based upon this compound's Henry's Law constant. Estimated volatilization half-lives for a model river and model lake are 19 hours and 8.6 days, respectively. An estimated BCF of 3 suggests the potential for bioconcentration in aquatic organisms is low. Hydrolysis is not expected to be an important environmental fate process since this compound lacks functional groups that hydrolyze under environmental conditions. Occupational exposure to diethyl ketone may occur through inhalation and dermal contact with this compound at workplaces where diethyl ketone is produced or used. Monitoring data indicate that the general population may be exposed to diethyl ketone via inhalation of ambient air, ingestion of food and drinking water, and dermal contact with products containing diethyl ketone. (SRC)
How to store diethyl ketone?from pubchem.ncbi.nlm.nih.gov
Sources of ignition such as smoking and open flames are prohibited where diethyl ketone is handled, used or stored in a manner that could create a potential fire or explosion hazard. Metal containers involving the transfer of 5 gallons or more of diethyl ketone should be grounded and bonded. Drums must be equipped with self-closing valves, pressure vacuum bungs, and flame arresters. Use only non-sparking tools and equipment, especially when opening and closing containers of diethyl ketone. Wherever this diethyl ketone is used, handled, manufactured, or stored, use explosion-proof electrical equipment and fittings.
What is the flash point of diethyl ketone?from pubchem.ncbi.nlm.nih.gov
Diethyl ketone appears as a clear colorless liquid with an acetone -like odor. Flash point 55°F. Less dense than water. Vapors heavier than air.
What is the most favorable course of action for a chemical?from pubchem.ncbi.nlm.nih.gov
SRP: The most favorable course of action is to use an alternative chemical product with less inherent propensity for occupational exposure or environmental contamination. Recycle any unused portion of the material for its approved use or return it to the manufacturer or supplier. Ultimate disposal of the chemical must consider: the material's impact on air quality; potential migration in soil or water; effects on animal, aquatic, and plant life; and conformance with environmental and public health regulations.
