n-Propanol

  • 1-Propanol
  • Propyl alcohol
  • Propan-1-ol
  • Ethyl carbinol
  • 1-Hydroxypropane
Formula
CH3CH2CH2OH
Structure
Description
Colorless liquid with a sweet, pleasant, mild alcoholic odor.
Uses
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.

Registry Numbers and Inventories.
CAS
71-23-8
EC (EINECS/ELINCS)
200-746-9
EC Index Number
603-003-00-0
EC Class
Highly flammable; Irritant; Vapours may cause drowsiness and dizziness
R 11 41 67
S 7 16 24 26 39
RTECS
UH8225000
RTECS class
Agricultural Chemical and Pesticide; Tumorigen; Mutagen; Reproductive Effector; Human Data; Primary Irritant
UN (DOT)
1274
Merck
12,8027
Beilstein/Gmelin
1098242
Beilstein Reference
4-01-00-01413
EPA OPP
47502
Swiss Giftliste 1
G-2043
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C3H8O
Formula mass
60.10
Melting point, °C
-127
Boiling point, °C
97
Vapor pressure, mmHg
21 (25 C)
Vapor density (air=1)
2.07
Saturation Concentration
1.97% (20 C)
Evaporization number
1.3 (butyl acetate=1)
Odor Threshold Odor threshold 30 ppm
Critical temperature
263
Critical pressure
51.32
Density
0.8053 g/cm3 (20 C)
Solubility in water
Miscible
Viscosity
2.256 cp (20 C)
Surface tension
23.75 g/s2 (20 C)
Refractive index
1.3862 (20 C)
Dipole moment
1.7 D (20 C)
Dielectric constant
20.1 (25 C)
Partition coefficient, pKow
0.25
Heat of fusion
5.2 kJ/mol
Heat of vaporization
47.5 kJ/mol
Heat of combustion
-2021.3 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Do not store near combustible materials. Store in a cool, dry place. Store in a tightly closed container. Keep from contact with oxidizing materials. Flammables-area.
B2 D2A D2B
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use with adequate ventilation. Use spark-proof tools and explosion proof equipment. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Do not get on skin or in eyes. Do not ingest or inhale. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear safety glasses and chemical goggles if splashing is possible. Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to minimize contact with skin.
Respirators
A full facepiece respirator with organic vapor cartridge may be worn up to 50 times the exposure limit or the maximum use concentration specified by the appropriate regulatory agency or respirator supplier, whichever is lowest. For emergencies or instances where the exposure levels are not known, use a full-facepiece positive-pressure, air-supplied respirator.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Use water spray to disperse the gas/vapor. Remove all sources of ignition. Provide ventilation.
Stability
Stable under ordinary conditions of use and storage.
Incompatibilities
Reacts violently with potassium-tert-butoxide. Can react vigorously with oxidizing materials.
Decomposition
Carbon dioxide and carbon monoxide may form when heated to decomposition. May produce acrid smoke and irritating fumes when heated to decomposition.

Fire.
Flash Point,°C
23
Autoignition, °C
412
Upper exp. limit, %
13.57
Lower exp. limit, %
2.3
Fire fighting
Wear full protective clothing and NIOSH-approved self-contained breathing apparatus with full facepiece operated in the pressure demand or other positive pressure mode. If a leak or spill has not ignited, use water spray to disperse the vapors, to protect personnel attempting to stop leak, and to flush spills away from exposures. Extinguish with water spray, dry chemical, alcohol foam, or carbon dioxide. Water spray may be used to keep fire exposed containers cool.
Fire potential
Flammable liquid and vapor.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. May polymerize explosively when heated or involved in a fire. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
Combustion products
Toxic gases and vapors (such as carbon monoxide) may be released in a fire involving propyl alcohol.
Health
1
 
Flammability
3
 
 
Reactivity
0
 

Health.
Exposure limit(s)
OSHA PEL: TWA 200 ppm (500 mg/m3) NIOSH REL: TWA 200 ppm (500 mg/m3) ST 250 ppm (625 mg/m3) skin NIOSH IDLH: 800 ppm
Poison_Class
4
Exposure effects
Prolonged or repeated skin contact may cause defatting and dermatitis. Chronic exposure may cause liver damage.
   Ingestion
May cause nausea, vomiting, drowsiness, gastrointestinal pain, cramps and diarrhea. Large doses may cause death.
   Inhalation
Vapors have a mild narcotic effect and act as an upper respiratory tract irritant. Symptoms may include irritation of the eyes, nose, and throat, drowsiness, headache, and incoordination. Excessive exposures may lead to narcosis and central nervous system depression.
   Skin
Defatting agent. May cause skin irritation. Skin absorption may occur with symptoms paralleling those from inhalation exposure.
   Eyes
Vapors are irritating to the eyes. Splashes may cause severe irritation, with stinging, tearing, redness and pain.

First aid
 
   Ingestion
Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid.
   Inhalation
Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
   Skin
Get medical aid. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.

Transport.
UN number
1274
Response guide
Hazard class
3
Packing Group
II; III
 
USCG CHRIS Code
PAL
 
20 Alcohols, Glycols
HS Code
2905 12 00
 
Std. Transport #
4909267 4909196
 
IMO Chemical Code
18
IMO Pollution Category
III