Names | |
---|---|
Preferred IUPAC name Octan-2-ol | |
Other names 2-Octanol 2-Octyl alcohol 1-Methyl-1-heptanol sec-Capryl alcohol Methylhexylcarbinol sec-Caprylic alcohol | |
Identifiers | |
3D model (JSmol) | |
1719322 | |
ChEBI | |
ChEMBL | |
ChemSpider | |
ECHA InfoCard | 100.004.244 |
EC Number |
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131016 | |
PubChem CID | |
RTECS number |
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UNII | |
CompTox Dashboard (EPA) | |
| |
| |
Properties | |
C8H18O | |
Molar mass | 130.231 g·mol−1 |
Appearance | Colourless liquid with characteristic odour [1] |
Density | 0.820 7 (g/cm3) (20°C) [2] |
Melting point | −38 °C (−36 °F; 235 K) [3] |
Boiling point | 178.5 °C (353.3 °F; 451.6 K) [3] |
1.120 g/L [4] | |
log P | 2.9 [4] |
Vapor pressure | 0.031 mbar (20 °C) 0.11 mbar (30 °C) 0.9 mbar (50 °C) [4] |
Henry's law constant (kH) | 1.23E-04 atm-m3/mol [4] |
Refractive index (nD) | 1.426 (20 °C) [5] |
Viscosity | 6.2 cP [6] |
Thermochemistry | |
Heat capacity (C) | 330.1 (J/mol*K) (298.5K) [1] |
Hazards | |
Occupational safety and health (OHS/OSH): | |
Eye hazards | 2 [4] |
Skin hazards | 2 [4] |
GHS labelling: [4] | |
Warning | |
H226, H315, H319, H411, H412 | |
P210, P233, P240, P241, P242, P243, P273, P280, P303+P361+P353, P305+P351+P338, P370+P378, P391, P403+P235, P501 | |
NFPA 704 (fire diamond) | |
Flash point | 71 °C (160 °F; 344 K) [4] |
265 °C (509 °F; 538 K) [4] | |
Explosive limits | 0.8 % v/v (lower) 7.4 % v/v (upper) [4] |
Lethal dose or concentration (LD, LC): | |
LD50 (median dose) | >3.2 g/kg (rat, oral) 4 g/kg (mouse, oral) [7] |
Safety data sheet (SDS) | Flinn Scientific |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). |
2-Octanol (octan-2-ol, 2-OH) is an organic compound with the chemical formula CH3CH(OH)(CH2)5CH3. It is a colorless oily liquid that is poorly soluble in water but soluble in most organic solvents. 2-Octanol is classified fatty alcohol. A secondary alcohol, it is chiral.
2-Octanol is produced commercially by base-cleavage of ricinoleic acid. [8] The coproduct is a mixture of sebacic acid ((C8H16CO2H)2). Castor oil, which consists mainly of triglycerides of ricinoleic acid, is the main feedstock. [9] [10]
2-Octanol is mainly used as:
It can also be used as a chemical intermediate for production of various other chemicals:
Waxes are a diverse class of organic compounds that are lipophilic, malleable solids near ambient temperatures. They include higher alkanes and lipids, typically with melting points above about 40 °C (104 °F), melting to give low viscosity liquids. Waxes are insoluble in water but soluble in nonpolar organic solvents such as hexane, benzene and chloroform. Natural waxes of different types are produced by plants and animals and occur in petroleum.
Acetophenone is the organic compound with the formula C6H5C(O)CH3. It is the simplest aromatic ketone. This colorless, viscous liquid is a precursor to useful resins and fragrances.
Castor oil is a vegetable oil pressed from castor beans, the seeds of the plant Ricinus communis. The seeds are 40 to 60 percent oil. It is a colourless or pale yellow liquid with a distinct taste and odor. Its boiling point is 313 °C (595 °F) and its density is 0.961 g/cm3. It includes a mixture of triglycerides in which about 90 percent of fatty acids are ricinoleates. Oleic acid and linoleic acid are the other significant components.
Nitromethane, sometimes shortened to simply "nitro", is an organic compound with the chemical formula CH
3NO
2. It is the simplest organic nitro compound. It is a polar liquid commonly used as a solvent in a variety of industrial applications such as in extractions, as a reaction medium, and as a cleaning solvent. As an intermediate in organic synthesis, it is used widely in the manufacture of pesticides, explosives, fibers, and coatings. Nitromethane is used as a fuel additive in various motorsports and hobbies, e.g. Top Fuel drag racing and miniature internal combustion engines in radio control, control line and free flight model aircraft.
1-Pentanol,, is an organic compound with the formula CH3CH2CH2CH2CH2OH and is classified as a primary alcohol. It is a colourless liquid with a distinctive aroma. It is one of 8 isomeric alcohols with the formula C5H11OH. It is used as a solvent, a biological drying agent and in the synthesis of some fragrance compounds. It is also a common component of fusel alcohols, the undesirable byproducts of alcoholic fermentation.
Benzyl alcohol (also known as α-cresol) is an aromatic alcohol with the formula C6H5CH2OH. The benzyl group is often abbreviated "Bn" (not to be confused with "Bz" which is used for benzoyl), thus benzyl alcohol is denoted as BnOH. Benzyl alcohol is a colorless liquid with a mild pleasant aromatic odor. It is useful as a solvent for its polarity, low toxicity, and low vapor pressure. Benzyl alcohol has moderate solubility in water (4 g/100 mL) and is miscible in alcohols and diethyl ether. The anion produced by deprotonation of the alcohol group is known as benzylate or benzyloxide.
Sebacic acid is a naturally occurring dicarboxylic acid with the chemical formula HO2C(CH2)8CO2H. It is a white flake or powdered solid. Sebaceus is Latin for tallow candle, sebum is Latin for tallow, and refers to its use in the manufacture of candles. Sebacic acid is a derivative of castor oil.
Piperonal, also known as heliotropin, is an organic compound which is commonly found in fragrances and flavors. The molecule is structurally related to other aromatic aldehydes such as benzaldehyde and vanillin.
Castoreum is a yellowish exudate from the castor sacs of mature beavers used in combination with urine to scent mark their territory.
Oleoresins are semi-solid extracts composed of resin and essential or fatty oil, obtained by evaporation of the solvents used for their production. The oleoresin of conifers is known as crude turpentine or gum turpentine, which consists of oil of turpentine and rosin.
n-Butyl acetate is an organic compound with the formula CH3CO2(CH2)3CH3. A colorless, flammable liquid, it is the ester derived from n-butanol and acetic acid. It is found in many types of fruit, where it imparts characteristic flavors and has a sweet smell of banana or apple. It is used as an industrial solvent.
Octyl acetate, or octyl ethanoate, is an organic compound with the formula CH3(CH2)7O2CCH3. It is classified as an ester that is formed from 1-octanol (octyl alcohol) and acetic acid. It is found in oranges, grapefruits, and other citrus products.
Polyglycerol polyricinoleate (PGPR), E476, is an emulsifier made from glycerol and fatty acids. In chocolate, compound chocolate and similar coatings, PGPR is mainly used with another substance like lecithin to reduce viscosity. It is used at low levels, and works by decreasing the friction between the solid particles in molten chocolate, reducing the yield stress so that it flows more easily, approaching the behaviour of a Newtonian fluid. It can also be used as an emulsifier in spreads and in salad dressings, or to improve the texture of baked goods. It is made up of a short chain of glycerol molecules connected by ether bonds, with ricinoleic acid side chains connected by ester bonds.
Ricinoleic acid, formally called 12-hydroxy-9-cis-octadecenoic acid, is a fatty acid. It is an unsaturated omega-9 fatty acid and a hydroxy acid. It is a major component of the seed oil obtained from the seeds of castor plant, the plant that produces ricin. It is also found in the sclerotium of ergot. About 90% of the fatty acid content in castor oil is the ricinolein.
Heptanal or heptanaldehyde is an alkyl aldehyde. It is a colourless liquid with a strong fruity odor, which is used as precursor to components in perfumes and lubricants.
Benzaldehyde (C6H5CHO) is an organic compound consisting of a benzene ring with a formyl substituent. It is among the simplest aromatic aldehydes and one of the most industrially useful.
4-Methylcyclohexanemethanol (MCHM, systematic name 4-methylcyclohexylmethanol) is an organic compound with the formula CH3C6H10CH2OH. Classified as a saturated higher alicyclic primary alcohol. Both cis and trans isomers exist, depending on the relative positions of the methyl (CH3) and hydroxymethyl (CH2OH) groups on the cyclohexane ring. Commercial samples of MCHM consists of a mixture of these isomers as well as other components that vary with the supplier.
1-Phenylethanol is the organic compound with the formula C6H5CH(OH)CH3. It is one of the most commonly available chiral alcohols. It is a colorless liquid with a mild gardenia-hyacinth scent.
Tetrahydrofurfuryl acetate is an organic chemical compound used for food flavouring and cosmetics. It has a fruity ethereal flavour, also described as honey, maple, or bread-like.
Jasminaldehyde is a fine chemical used as an aroma compound in perfumes. It is responsible for jasmine's characteristic scent.