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

Odor Threshold Odor threshold 2 ppb
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
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.
NFPA 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 129
Hazard class 3
Packing Group III  
USCG CHRIS Code AAS  
USCG Compatatibility Group 34 Esters
IMO Chemical Code 17
IMO Pollution Category C
IMO Hazard code P