- (propyl alcohol), a colorless ALCOHOL, used as a solvent and in the production of various chemicals. It exists in the form of two ISOMERS. Ordinary propanol (CH3CH2CH2OH) is a by-product of the METHANOL synthesis ... ... Scientific and technical encyclopedic dictionary

propanol - noun, number of synonyms: 1 fuel (48) ASIS synonym dictionary. V.N. Trishin. 2013 ... Synonym dictionary

2-AMINO-2-METHYL-1-PROPANOL - (1,1 dimethyl 1 hydroxymethylmethylamine) (CH3) 2C (NH2) CH2OH, mol. m. 89.14; colorless crystals with a weak amine odor; t. pl. 30 31 ... Chemical encyclopedia

2 - DIMETHYLAMINO - 2 - METHYL - 1 - PROPANOL - (CH3) 2NC (CH3) 2CH2OH, mol. m. 117.19; colorless liquid with a weak amine odor; t. st. 19 ° C, bp 160 ° C, 61 ° C / 20 mm Hg. Art .; d2020 0.900; nD20 1.4450; pK a 10.2 (25 ° C); miscible with water, sol. in ethanol. Forms ... ... Chemical encyclopedia

Isopropyl alcohol - propanol 2, the simplest secondary alcohol of the aliphatic series, CH3CH (OH) CH3; colorless liquid with a characteristic odor; melting point 89.5 ° C, tkip 82.4 ° C, density 0.7851 g / cm3 (20 ° C), tsp 11.7 ° C, lower explosive limit in air 2.5% by ... ... Great Soviet Encyclopedia

ISOPROPYL ALCOHOL - propanol, CH3CH (OH) CH3 is a colorless liquid with a characteristic odor; m.p. \u003d 89.5 ° C; tboil \u003d 82.4 ° C; density 785.1 kg / m3; tvsp \u003d 11.7 ° C; the lower explosive limit is the content in the air of 2.5% isopropyl alcohol (volume fraction). ... ... Metallurgical Dictionary

Alcohols - A distinctive feature of alcohols, the hydroxyl group at a saturated carbon atom in the figure is highlighted in red (oxygen) and gray (hydrogen). Alcohols (from lat. ... Wikipedia

Propyl alcohol - Propyl alcohol ... Wikipedia

Isopropyl alcohol - Isopropanol ... Wikipedia

Dictionary of chemical formulas - Here is a list of chemicals with their chemical formulas (usually gross) and CAS number, alphabetically by formula. Table of contents: A B C Ca Cu D E F G H I K L M N O P R S T U V W X Y Z ... Wikipedia

Books

• A set of decorative cosmetics "Beautician-Carriage" (BB 1773),. A set of children's decorative cosmetics. Completeness: 2-level cosmetic bag-carriage with a mirror, eyeshadows with sparkles (9 shades), applicator, lipsticks (2 colors), nail polish. Ingredients:… Buy for 877 rubles
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CAS: 71-23-8.

Chemical formula: C3H8O.

Synonyms: normal propyl alcohol, propan-1-ol, n-propanol.

Description:

Propanol-N (normal propanol) is a colorless liquid with a characteristic alcoholic odor.

Specifications:

Physical properties of n-propanol.

Evaporating temperature: 97 ° C
Melting point: -127 ° C
Relative density (water \u003d 1): 0.8
Water solubility: miscible
Vapor pressure, kPa at 20 ° C: 2.0
Relative vapor density (air \u003d 1): 2.1
Relative density of the vapor / air-mixture at 20 ° C (air \u003d 1): 1.02
Flash point: 15 ° C in a closed container or 23 ° C in an open container
Auto-ignition temperature: 371 ° C
Explosive limits, vol% in air: 2.1-13.5
Octanol / water partition coefficient as log Pow: 0.25

Application:
Propanol-N (Normal propanol) is used as a solvent and an intermediate chemical product. Main application: flexographic printing and other types of printing inks.

Propyl alcohol TU 6-09-4344-77

CH 3 CH 2 CH 2 OH

C 3 H 7 OH

Propyl alcohol (propan-1-ol, 1-propanol) C 3 H 7 OH - monohydric alcohol. It occurs naturally in small quantities as a fermentation product. So, it is a component of fusel oil. There is an isomer of 1-propanol - isopropyl alcohol (propan-2-ol, 2-propanol).

A colorless liquid with an alcoholic odor, mixes with water and forms an azeotropic mixture with it (bp 87.5-88.0 ° C, 71.8% by weight of 1-propanol). Let's dissolve in ethanol, diethyl ether, acetone, benzene and other organic solvents.

Application

1-Propanol is used as a solvent for waxes, polyamide inks, natural and synthetic resins, polyacrylonitrile; in the production of low pressure polyethylene; to obtain carbomethoxycellulose; as a metal degreaser; a co-solvent for polyvinyl chloride adhesives; a gelling and plasticizing agent for cellulose acetate films; an alkylating agent. It is also used for the synthesis of propionic acid, propionic aldehyde, propyl acetate, propylamine, surfactants, pesticides, and some pharmaceuticals.

1-Propanol has a high octane number (118). However, its production is too expensive for it to become a widely used fuel.

Safety [

Combustible. MPC of propyl alcohol in the air of the working area is 10 mg / m 3, in the atmospheric air of settlements - no more than 0.3 mg / m 3.

Empirical formula. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... C3H8O

Structural formula. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... CH3CH2CH2OH

Molecular weight, kg / kmol. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 60.09

State of aggregation. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... liquid

Appearance. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... colorless liquid

Smell. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... alcoholic

Application: as a reagent and solvent for the production of propionic aldehyde, some pharmaceuticals.

PHYSICOCHEMICAL CHARACTERISTICS

Density at 25 ° C and a pressure of 101.3 kPa, kg / m3. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 801

Vapor density in air. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 2.1

Boiling point, ° С. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 97.8

Melting point, ° С. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... minus 127

Critical temperature, ° С. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 263.7

Critical pressure, MPa. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 5.05

Heat of combustion, kJ / mol. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... minus 2067.4

Specific heat of combustion, kJ / kg. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .34405

Heat of formation, kJ / mol. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... minus 257.7

Vapor diffusion coefficient in air at 25 ° С, cm2 / s. ... ... ... ... ... ... ... ... ... ... ... 0.0803

Antoine's equation constants in the temperature range 0 - 97 ° C:

A. . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 7.44201

IN. . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 1751,981

FROM. . ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 225,125

Water solubility:. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... unlimited.

Reactivity: dissolves in organic solvents.

Possesses all the properties of secondary fatty monohydric alcohols, forming ethers and esters.

SANITARY AND HYGIENIC CHARACTERISTICS

CAS registration number. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .71-23-8

Hazard class in the air of the working area. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 3

MPCm.r./s.s. in the air of the working area, mg / m3. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 30/10

Air pollutant code. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 1054

Hazard class in atmospheric air. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 3

MPCm.r in atmospheric air, mg / m3. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 0.3

Exposure to humans: irritating effect of vapors on the mucous membranes of the eyes and upper respiratory tract, the possibility of damage to the retina and optic nerve.

First aid measures for victims of exposure to the substance: fresh air, rest, rewarming, cardiovascular drugs, oxygen inhalation. Sedatives if necessary.

Precautions: local exhaust devices and general ventilation of the premises are mandatory. Sealing of equipment and communications. Preventive medical examinations with the assistance of an ophthalmologist.

Protective equipment: filtering industrial gas mask, hose isolating gas mask. Protective sealed goggles.

FIRE AND EXPLOSION HAZARDOUS PROPERTIES

Flammability group. ... ... ... ... ... ... ... ... ... ... ... ... flammable liquid (flammable liquid)

Flash point, ° С

Closed crucible. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .23

Open crucible. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .29

Ignition temperature, ° С. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .thirty

Autoignition temperature, ° С

In the air. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .370

In chlorine. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .210

Combustion temperature, K. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 1542

Concentration limits of flame spread,% (vol.)

In the air. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 2.3-13.6

In chlorine. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 3.0-51.5

Temperature limits of flame spread, ° С. ... ... ... ... ... ... ... ... ... ... ... .21-55

Maximum flame propagation speed, m / s. ... ... ... ... ... ... ... ... ... ... ... ... ... 0.49

Minimum explosive oxygen content,% (vol.). ... ... ... ... ... ... ... 11.34

Minimum phlegmatizing concentration of phlegmatizer,% vol .:

Nitrogen. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 45.0

Carbon dioxide. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 28.8

Water vapor. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 35.0

Burnout rate, kg / (m2? S). ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 4.09 × 10-2

Safe experimental maximum clearance, mm. ... ... ... ... ... ... ... ... ... 0.99

Explosive mixture group according to GOST R 51330.5. ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... T2

Extinguishing media: water in the form of compact or sprayed jets, powders, aerosol formulations.

Propyl alcohol is a good solvent for oil, resin, rubber, cellulose. Alcohol itself dissolves in ether, other alcohols, water, chloroform. It does not interact with salt solutions. By adding table salt, alcohol is isolated from an aqueous solution, since it dissolves poorly in physiological solution and well in salt-free water. This process is called salting. It is produced for the purpose of dissociation of propyl alcohol into layers. As a result of the interaction of water and propyl alcohol, a mixture is formed that has a low melting point and a bitter taste. The viscosity of propyl alcohol increases with decreasing temperature. If the temperature drops below -70 ° C, its consistency becomes similar to that of maple syrup. Propyl alcohol is oxidized to acetone and interacts with active metals.

Using propyl alcohol

One of the most significant functions of propyl alcohol is its ability to dissolve various non-polar mixtures. Compared to alternative solvents, it evaporates quickly and is less toxic. Propyl alcohol is used as a cleaning agent and solvent for oils. Examples of such uses include cleaning contact connectors, electronic devices, disk heads, magnetic tapes, laser lenses, and removing thermal grease from housings and radiators of industrial units.

Propyl alcohol is used to clean LCD monitors, keyboards, laptops, glass screens. It is an alternative to many household cleaning products and gives shine to worn and used non-vinyl records. This chemical cannot be used to clean vinyl, as its alkaline reaction will damage and even completely remove the plasticizer, which will harden the vinyl.

Propyl alcohol removes glue residue from sticky labels and oil and oil stains from cotton, wood and some fabrics. Alcohol is used to prepare surfaces for repainting. It is a humectant in lithographic printing and a solvent for French polish in furniture production.

In medicine, propyl alcohol is used to prepare disinfectant tampons or a solution for hand disinfection. It is a desiccant and preventive measure for otitis externa, which is known as swimmer's ear.

In the automotive industry, propyl alcohol is a fuel additive that removes water from gasoline. Water is unacceptable in the fuel tank because, once separated from the gasoline, it quickly freezes as the temperature drops. Water dissolved in alcohol does not accumulate in the fuel supply lines and does not freeze. Also, propyl alcohol is part of aerosols used to protect the windshield from icing.