Catalog Number
ACMA00017380
Product Name
n-Propyl Alcohol
Description
N-propanol appears as a clear colorless liquid with a sharp musty odor like rubbing alcohol. Flash point 53-77°F. Autoignites at 700°F. Vapors are heavier than air and mildly irritate the eyes, nose, and throat. Density approximately 6.5 lb / gal. Used in making cosmetics, skin and hair preparations, pharmaceuticals, perfumes, lacquer formulations, dye solutions, antifreezes, rubbing alcohols, soaps, window cleaners, acetone and other chemicals and products.;Liquid;Liquid;Liquid;CLEAR COLOURLESS LIQUID WITH CHARACTERISTIC ODOUR.;colourless liquid;Colorless liquid with a mild, alcohol-like odor.;Colorless liquid with a mild, alcohol-like odor.
Molecular Weight
60.1g/mol
Molecular Formula
C3H8O;CH3CH2CH₂OH;CH3CH2CH₂OH;C3H8O;C3H8O
InChI
InChI=1S/C3H8O/c1-2-3-4/h4H,2-3H2,1H3
InChI Key
BDERNNFJNOPAEC-UHFFFAOYSA-N
Boiling Point
207 °F at 760 mm Hg (USCG, 1999);97.2 °C;97.2 °C;97 °C;207°F;207°F
Melting Point
-195.2 °F (USCG, 1999);-126.1 °C;Mp -127 °;-127 °C;-126.1°C;-127 °C;-196°F;-196°F
Flash Point
77 °F (USCG, 1999);23 °C, 74 °F (closed cup);22 °C (open cup);15 °C c.c.;72°F;72°F
Density
0.803 at 68 °F (USCG, 1999);d254 0.8;0.8053 @ 20 °C/4 °C;Relative density (water = 1): 0.8;0.800-0.805;0.81;0.81
Solubility
Miscible (NIOSH, 2016);16.64 M;1000 mg/mL at 25 °C;MISCIBLE WITH PROPYLENE GLYCOL;> 10% acetone;> 10% benzene;> 10% ether;> 10% ethanol;In water: 1.00X10+6 @ 25 °C;1000.0 mg/mL;Solubility in water: miscible;1 ml in 1 ml 95% alcohol (in ethanol);Miscible
Application
n-Propyl Alcohol serves as a versatile solvent and chemical intermediate, finding its primary applications in industrial and commercial settings. It is known for its ability to dissolve fats, oils, and polar resins more effectively than ethanol, although it does not dissolve cellulose nitrate and poly(vinyl acetate). As a clear, colorless liquid with a fruity scent, n-Propyl Alcohol is also used in the creation of other chemicals, such as esters and glycol ethers, providing high solvency and stability. Despite its beneficial solvent properties, its economic use is somewhat limited. In various industries, n-Propyl Alcohol is employed in coatings, printing inks, cosmetics, and pesticides. However, caution is advised due to its irritating effects on the eyes and mucous membranes, and potential health risks upon inhalation.
Color/Form
Colorless liquid.
Corrosivity
Propyl alcohol will attack some forms of plastics, rubber, and coatings.
Covalently-Bonded Unit Count
1
Heat of Vaporization
47.45 kJ/mol @ 25 °C
Log P
0.25 (LogP);0.25;log Kow= 0.25;0.25;0.25
MeSH Entry Terms
1-Propanol;Alcohol, Propyl;n-Propanol;Propanol;Propyl Alcohol
Monoisotopic Mass
60.057515g/mol
Odor
Similar to ethanol;Odor perception threshold: <0.07-100 mg/cu-m; odor recognition threshold: 0.32-150 mg/cu m
Other Experimental
% IN "SATURATED" AIR: 2.7 (25 °C); DENSITY OF "SATURATED" AIR: 1.028 (AIR= 1) @ 25 °C; 1 MG/L= 408 PPM & 1 PPM= 2.45 MG/CU M @ 25 °C, 760 MM HG;Heat of fusion: 20.66 cal/g; Heat of solution: (est) -9 BTU/lb= -5 cal/g= -0.2X10+5 J/kg; Reid Vapor Pressure: 0.87 psia;Liquid heat capacity= 0.566 BTU/lb-F @ 70 °F; Ideal gas heat capacity= 0.345 BTU/lb-F @ 75 °C;Coefficient of cubical expansion: 9.56X10-7 at 0-94 °C; critical density: 0.2734; electrical conductivity: 2X10-3 mho/cm at 25 °C; specific heat: 0.586 cal/g/deg C at 25 °C; wt/gal: 6.7 lb at 20 °C;Forms binary azeotropes with acetal, benzene, biacetyl,1-bromobutane, 2-bromobutane, n-butyl chloride, butyl formate, carbon tetrachloride, chlorobenzene, 1-chlorobutane, 2-chlorobutane, 1-chloro-3-methylbutane, 1-chloro-2-methylpropane, diethoxymethane, dioxane, di-n-propyl ether, ethyl propionate, ethyl sulfide, ethylene chloride, fluorobenzene, n-hexane, 1-iodobutane, 2-iodobutane, 1-iodo-2-methylpropane, isobutyl formate, isobutyronitrile, methyl acrylate, 3-methyl-2-butanol, methyl butyrate, methyl isobutyrate, 2-pentanone, 3-pentanone, alpha-pinene, propyl acetate, n-propyl bromide, propyl formate, toluene, water;Forms ternary azeotropes with water, acetaldehyde dipropylacetal; water, benzene; water, carbon tetrachloride; water, 1,3-cyclohexadiene; water, cyclohexane; water, cyclohexene; water, dipropoxymethane; water, ethoxypropoxymethane; water, 3-iodopropene; water, nitromethane; water, 3-pentanone; water, propyl acetate; water, propyl chloroacetate; water, propyl ether; water, propyl formate; water, trichloroethylene;Saturated concn in air 46 g/cu m at 20 °C, 85 g/cu m at 30 °C;Dielectric constant: 22.2 at 20 °C; 20.33 at 25 °C; dipole moment: 1.67 (gas), 1.75 in benzene at 25 °C;Enthalpies of formation: -72.66 kcal/mole (liquid); -61.28 kcal/mole (gas); Gibbs (free) energies of formation: -40.78 kcal/mole (liquid); -38.67 kcal/mole (gas); Entropies: 46.5 cal/deg-mole (liquid); 77.61cal/deg-mole (gas); Heat capacities: 33.71 cal/deg-mole (liquid); 20.82 cal/deg-mole (gas);Heat of melting: 1.242 kcal/mole; heat of sublimation: 11.36 kcal/mole at 298 K; specific heat: 25.86 cal/K.mol at 400 K;Heat capacity, liquid @ 25 °C = 141 J/mol-K; flash point, Tag open cup = 28.9 °C; autoignition temp = 371.1 °C; explosive limit, in air = 2.2 vol% (lower), 14.0 vol% (upper); electrical conductivity @ 25 °C = 2X10-8 mho; critical density = 0.275 g/cu-cm;Conversion factors: 1 ppm n-propanol = 2.46 mg/cu-m air; 1 mg n-propanol/cu-m air = 0.41 ppm @ 25 °C and 1 atm.;Henry's Law constant = 7.41X10-6 atm-cu m/mol @ 25 °C;Hydroxyl radical reaction rate constant = 5.53X10-12 cu-cm/molecule sec @ 25 °C
Refractive Index
n20D 1.3850;Index of refraction: 1.3862 @ 20 °C/D;1.383-1.388
UN Number
1274;1274;1274;1274;1274
Vapor Density
2.1 (Air = 1);Relative vapor density (air = 1): 2.1
Vapor Pressure
44.98 mm Hg (USCG, 1999);20.99 mmHg;21.0 mm Hg @ 25 °C;Vapor pressure, kPa at 20 °C: 2.0;15 mmHg;15 mmHg
Viscosity
2.256 cP @ 20 °C
