Amyl alcohol

  • n-Pentanol
  • Pentyl alcohol
  • Pentan-1-ol
  • 1-Pentanol
Formula
CH3(CH2)4OH
Structure
Description
Clear, colorless liquid with a pleasant, sweet odor or with a fusel-like odor.
Uses
In organic synthesis.

Registry Numbers and Inventories.
CAS
71-41-0
EC (EINECS/ELINCS)
200-752-1
EC Index Number
603-006-00-7
EC Class
flammable, harmful
R 10 20
RTECS
SB9800000
RTECS class
Mutagen; Primary Irritant
UN (DOT)
1105
Merck
12,7257
Beilstein/Gmelin
1730975
Beilstein Reference
4-01-00-01640
Swiss Giftliste 1
G-2699
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C5H12O
Formula mass
88.15
Melting point, °C
-79
Boiling point, °C
137.9
Vapor pressure, mmHg
2 (25 C)
Vapor density (air=1)
3.04
Saturation Concentration
0.22% at 20 C
Evaporization number
2.7 (diethyl ether = 1)
Odor Threshold Odor threshold 0.12 ppm
Critical temperature
313
Density
0.82892 g/cm3 (0 C)
Solubility in water
2.7g/100 mL
Viscosity
3.42 cp (25 C)
Surface tension
24.97 g/s2 (25 C)
Refractive index
1.4103 (20 C)
Dipole moment
1.65 D
Dielectric constant
13.9 (25 C)
Partition coefficient, pKow
1.41
Heat of vaporization
56.94 kJ/mol
Heat of combustion
-3284 kJ/mol

Hazards and Protection.
Storage
Keep in a cool, dry, dark location in a tightly sealed container or cylinder. Keep away from incompatible materials, ignition sources and untrained individuals. Secure and label area. Protect containers/cylinders from physical damage.
B3 D2B
Handling
All chemicals should be considered hazardous. Avoid direct physical contact. Use appropriate, approved safety equipment. Untrained individuals should not handle this chemical or its container. Handling should occur in a chemical fume hood.
Protection
Standard industrial hygiene controls should be used in limiting employee exposure. These including the use of barrier creams and personal protective clothing to prevent skin contact.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).
Small spills/leaks
Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if without undue personnel hazard. Use water spray to knock-down vapors. Land spill: Dig a pit, pond, lagoon, holding area to contain liquid or solid material. Dike surface flow using soil, sand bags, foamed polyurethane, or foamed concrete. Absorb bulk liquid with fly ash, cement powder, or commercial sorbents. Water spill: Use natural barriers or oil spill control booms to limit spill travel. Remove trapped material with suction hoses.
Disposal code
1
Stability
Stable at room temperature in closed containers under normal storage and handling conditions.
Incompatibilities
Strong oxidizing agents, strong acids, strong bases, alkali metals, alkaline earth metals, isocyanates, aliphatic amines.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
33
Autoignition, °C
300
Upper exp. limit, %
10.5
Lower exp. limit, %
1.2
Fire fighting
Do not extinguish fire unless flow can be stopped. Use water in flooding quantities as fog. Solid streams of water may be ineffective. Cool all affected containers with flooding quantities of water. Use alcohol foam, dry chemical or carbon dioxide. Keep run-off water out of sewers and water sources.
Fire potential
HIGHLY FLAMMABLE.
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
Fire may produce irritating, corrosive and/or toxic gases.
Health
2
 
Flammability
3
 
 
Reactivity
0
 

Health.
Exposure limit(s)
OEL-UNITED KINGDOM:TWA 100 ppm (530 mg/m3);STEL 150 ppm
Poison_Class
4
Exposure effects
Headache, dizziness, giddiness, ataxia, sedation and coma may occur.
   Ingestion
May cause gastrointestinal irritation with nausea, vomiting and diarrhea. May cause effects similar to those for inhalation exposure. Aspiration of material into the lungs may cause chemical pneumonitis, which may be fatal. Ingestion of large amounts may cause CNS depression
   Inhalation
Inhalation of high concentrations may cause central nervous system effects characterized by nausea, headache, dizziness, unconsciousness and coma. Inhalation of vapor may cause respiratory tract irritation. Irritation may lead to chemical pneumonitis and pulmonary edema. May cause kidney damage. Vapors may cause dizziness or suffocation. May cause burning sensation in the chest.
   Skin
Dermatitis of varying severity may be noted. Drying and fissuring of the skin may be noted following chronic exposure.
   Eyes
Vapor or splash contact exposure may cause burning, tearing, blurring of vision, and vacuolar keratopathy.

First aid
 
   Ingestion
DO NOT INDUCE VOMITING. If the victim is conscious and not convulsing, give 1 or 2 glasses of water to dilute the chemical and IMMEDIATELY call a hospital or poison control center. Be prepared to transport the victim to a hospital if advised by a physician.
   Inhalation
IMMEDIATELY leave the contaminated area; take deep breaths of fresh air. If symptoms (such as wheezing, coughing, shortness of breath, or burning in the mouth, throat, or chest) develop, call a physician and be prepared to transport the victim to a hospital. Provide proper respiratory protection to rescuers entering an unknown atmosphere. Whenever possible, Self-Contained Breathing Apparatus (SCBA) should be used.
   Skin
IMMEDIATELY flood affected skin with water while removing and isolating all contaminated clothing. Gently wash all affected skin areas thoroughly with soap and water. If symptoms such as redness or irritation develop, IMMEDIATELY call a physician and be prepared to transport the victim to a hospital for treatment.
   Eyes
First check the victim for contact lenses and remove if present. Flush victim's eyes with water or normal saline solution for 20 to 30 minutes while simultaneously calling a hospital or poison control center. Do not put any ointments, oils, or medication in the victim's eyes without specific instructions from a physician. IMMEDIATELY transport the victim after flushing eyes to a hospital even if no symptoms (such as redness or irritation) develop.

Transport.
UN number
1105
Response guide
Hazard class
3
Packing Group
II; III
 
USCG CHRIS Code
AAN
 
20 Alcohols, Glycols
HS Code
2905 15 00
 
Std. Transport #
4909301 4909107 4909142 4909143
 
IMO Chemical Code
18
IMO Pollution Category
D