Home Categories Organic Chemistry Propanol
A6694912

Propanol , StandardforGC,≥99.8%(GC) , 71-23-8

Synonym(s):
n-Propyl Alcohol;1-Propanol;n-Propyl alcohol, Propan-1-ol;Propyl alcohol

CAS NO.:71-23-8

Empirical Formula: C3H8O

Molecular Weight: 60.1

MDL number: MFCD00002941

EINECS: 200-746-9

Update time: 2022-07-08

PRODUCT Properties

Melting point: -127 °C(lit.)
Boiling point: 97 °C(lit.)
Density  0.804 g/mL at 25 °C(lit.)
vapor density  2.1 (vs air)
vapor pressure  10 mm Hg ( 147 °C)
refractive index  n20/D 1.384(lit.)
FEMA  2928 | PROPYL ALCOHOL
Flash point: 59 °F
storage temp.  Store at +5°C to +30°C.
solubility  H2O: passes test
form  Liquid
pka >14 (Schwarzenbach et al., 1993)
color  <10(APHA)
Odor Resembles that of ethyl alcohol.
Relative polarity 0.617
PH 7 (200g/l, H2O, 20℃)
explosive limit 2.1-19.2%(V)
Odor Threshold 0.094ppm
Odor Type alcoholic
Water Solubility  soluble
λmax λ: 220 nm Amax: ≤0.40
λ: 240 nm Amax: ≤0.071
λ: 275 nm Amax: ≤0.0044
JECFA Number 82
Merck  14,7842
BRN  1098242
Henry's Law Constant 6.75 (static headspace-GC, Merk and Riederer, 1997)
Exposure limits TLV-TWA (200 ppm); (500 mg/m3); STEL 250 ppm (625 mg/m3); IDLH 4000 ppm.
Dielectric constant 20.1(25℃)
Stability: Stable. May form peroxides in contact with air. Incompatible with alkali metals, alkaline earths, aluminium, oxidizing agents, nitro compounds. Highly flammable. Vapour/air mixtures explosive.
LogP 0.33

Description and Uses

1-propanol is the compound with the hydrogen atom in the propane molecules being replaced by hydroxyl group. Because the hydroxyl group can substitute the hydrogen atoms contained in the carbons in the two terminals of carbon chain or middle carbon, thus generating two isomers, n-propyl alcohol and isopropyl alcohol.
The chemical property of the 1-propanol is similar to that of ethanol. It is the byproduct during the process of the methanol synthesis from carbon monoxide and hydrogen. At room temperature and normal pressure, it appears as colorless transparent liquid with fragrance odor. In industry, it is prepared through the reaction between ethylene, carbon monoxide and hydrogen under high pressure and cobalt catalysis; alternatively through the hydration of propylene under the action of sulfate or through the catalytic hydrogenation of acetone. It is commonly used as a solvent with irritating effect on the eyes and mucosa. Inhalation of propyl alcohol steam can lead to dizziness, headache and vomiting, etc.

A colorless liquid made by oxidation of aliphatic hydrocarbons that is used as a solvent and chemical intermediate.

Safety

Symbol(GHS) 
GHS02,GHS05,GHS07
Signal word  Danger
Hazard statements  H225-H318-H336
Precautionary statements  P210-P233-P240-P241-P280-P305+P351+P338
Hazard Codes  F,Xi
Risk Statements  11-41-67
Safety Statements  7-16-24-26-39
OEB A
OEL TWA: 200 ppm (500 mg/m3), STEL: 250 ppm (625 mg/m3) [skin]
RIDADR  UN 1274 3/PG 2
WGK Germany  1
RTECS  UH8225000
10-23
Autoignition Temperature 700 °F
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29051200
Toxicity LD50 orally in rats: 1.87 g/kg (Smyth)
IDLA 800 ppm

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