sec-Amyl acetate

  • 2-Pentyl acetate
  • 1-Methylbutyl acetate
  • Acetic acid, 2-pentyl ester
Formula
C7H14O2
Structure
Description
Colorless liquid. Mild, nonresidual.
Uses
It is used as a solvent for nitrocellulose & ethyl cellulose, celluloid products, cements, coated paper, lacquers, leather finishes, nail enamels, plastic wood, textile sizing & printing compounds. It is also used in the manufacture of artificial leather, linoleum, and washable wallpaper.

Registry Numbers and Inventories.
CAS
626-38-0
EC (EINECS/ELINCS)
210-946-8
EC Index Number
607-130-00-2
EC Class
Flammable; Repeated exposure may cause skin dryness or cracking
RTECS
AJ2100000
RTECS class
Human Data
UN (DOT)
1104
Beilstein/Gmelin
1721249
Beilstein Reference
4-02-00-00155
Swiss Giftliste 1
G-3098
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C7H14O2
Formula mass
130.21
Melting point, °C
-70.8
Boiling point, °C
134 - 135
Vapor pressure, mmHg
10 (25 C)
Vapor density (air=1)
4.5
Odor Threshold Odor threshold 2 ppb
Critical temperature
326.1
Critical pressure
28
Density
0.9222 g/cm3 (0 C)
Solubility in water
Slightly soluble
Viscosity
75 cp
Surface tension
28.9 g/s2
Refractive index
1.398 (20 C)
Heat of vaporization
36.8 kJ/mol

Hazards and Protection.
Storage
Keep containers tightly closed in a well ventilated area away from food products. Keep away from heat and water.
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
Wear appropriate clothing to prevent any reasonable probability of skin contact. Wear eye protection to prevent any possibility of eye contact.
Respirators
Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive pressure mode. Any supplied-air respirator that has a full facepiece and is operated in pressure-demand or other positive pressure mode in combination with an auxiliary self-contained breathing apparatus operated in pressure-demand or other positive pressure mode.
Small spills/leaks
Make no contact with the spilled material. ELIMINATE all ignition sources and ground all equipment. Stop leak if you can do it without risk. A vapor suppressing foam may be used to reduce vapors. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. Use clean non-sparking tools to collect absorbed material.
Stability
Heat contributes to instability.
Incompatibilities
Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products Incompatible with the following: Nitrates; strong oxidizers, alkalis & acids.
Decomposition
When heated to decomposition it emits acrid smoke and irritating fumes.

Fire.
Flash Point,°C
32
Autoignition, °C
380
Upper exp. limit, %
7.5
Lower exp. limit, %
1
Fire fighting
Fire Extinguishing Agents Not to Be Used: Water may be ineffective.Fire Extinguishing Agents: Water fog in conjuction with alcohol foam, dry chemical or carbon dioxide.
Fire potential
Very flammable. Flammable, moderate fire risk.
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.
Combustion products
When heated emits acrid fumes.
Health
1
 
Flammability
3
 
 
Reactivity
0
 

Health.
Exposure limit(s)
TLV: 125 ppm; 665 mg/m3 (as TWA) (ACGIH 1993-1994). OSHA PEL: TWA 125 ppm (650 mg/m3) NIOSH REL: TWA 125 ppm (650 mg/m3) NIOSH IDLH: 1000 ppm
Poison_Class
5
Exposure effects
Headache, dizziness, fatigue, and narcosis may occur.
   Ingestion
Nausea, vomiting, and diarrhea may occur.
   Inhalation
Cough and rapid breathing may occur.
   Skin
A drying of skin and irritation may occur.
   Eyes
Amyl acetate causes irritation of the eyes and mucous membranes.

First aid
 
   Ingestion
Administer charcoal as a slurry (240 ml water/30 g charcoal). Usual dose: 25 to 100 g in adults/adolescents. Consider inserting a nasogastric tube to aspirate gastric contents after recent large ingestions.
   Inhalation
Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with beta2 agonist and corticosteroid aerosols.
   Skin
Remove contaminated clothing and wash exposed area thoroughly with soap and water. A physician should examine the area if irritation or pain persists.
   Eyes
Irrigate exposed eyes with copious amounts of tepid water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist, the patient should be seen in a health care facility.

Transport.
UN number
1104
Response guide
Hazard class
3
Packing Group
III
 
USCG CHRIS Code
AAS
 
IMO Chemical Code
17
IMO Pollution Category
C
IMO Hazard code
P