Butyl acrylate

  • 2-Propenoic acid, butyl ester
  • n-Butyl acryalate
  • Acrylic acid, n-butyl ester
Formula
CH2=CHCOOC4H9
Structure
Description
Colorless liquid with a sharp, pungent, fruity odor.
Uses
Monomer for the manufacture of polymers and resins for textile and leather finishes & paintermediate formulations.

Registry Numbers and Inventories.
CAS
141-32-2
EC (EINECS/ELINCS)
205-480-7
EC Index Number
607-062-00-3
EC Class
Flammable; Irritant; Sensitising
R 10 36/37/38 43
RTECS
UD3150000
RTECS class
Tumorigen; Reproductive Effector; Primary Irritant
UN (DOT)
2348
Merck
13,1538
Beilstein/Gmelin
1749970
Beilstein Reference
4-02-00-01463
Swiss Giftliste 1
G-1842
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C7H12O2
Formula mass
128.17
Melting point, °C
-65
Boiling point, °C
145
Vapor pressure, mmHg
5 (25 C)
Vapor density (air=1)
4.42
Saturation Concentration
4300-5300 ppm (0.43-0.53%) at 20 C; 7200 ppm (0.72%) at 25 C (calculated)
Critical temperature
371
Critical pressure
44.81
Density
0.9202 g/cm3 (0 C)
Solubility in water
Slightly soluble
Surface tension
20 g/s2
Refractive index
1.4254 (12 C)
Dielectric constant
5.38
Partition coefficient, pKow
2.36
Heat of vaporization
38.54 kJ/mol
Heat of combustion
-4047 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a tightly closed container. Keep from contact with oxidizing materials. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area.
B3 D1A D2B F
Handling
Ground and bond containers when transferring material. Use spark-proof tools and explosion proof equipment. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Use with adequate ventilation. Wash clothing before reuse. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: 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 gloves to prevent skin exposure. Clothing: Wear appropriate clothing to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
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. Use a spark-proof tool. Provide ventilation. A vapor suppressing foam may be used to reduce vapors.
Disposal code
1
Stability
Stable at room temperature in closed containers under normal storage and handling conditions. Stable. However, it may undergo explosive polymerization if uninhibited.
Incompatibilities
Strong oxidizing agents, catalytic metals, organotin catalysts, strong acids, amines, peroxides, strong bases, halogens.
Decomposition
Carbon monoxide, carbon dioxide and irritating and toxic fumes and gases.

Fire.
Flash Point,°C
37
Autoignition, °C
297
Upper exp. limit, %
9.9
Lower exp. limit, %
1.3
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Will burn if involved in a fire. Use water spray to keep fire-exposed containers cool. Water may be ineffective. Material is lighter than water and a fire may be spread by the use of water. Containers may explode in the heat of a fire. May polymerize explosively when involved in a fire. Extinguishing media: For small fires, use dry chemical, carbon dioxide, water spray or alcohol-resistant foam. For large fires, use water spray, fog, or alcohol-resistant foam. Use water spray to cool fire-exposed containers. Water may be ineffective. Do NOT use straight streams of water.
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
3
 
Flammability
2
 
 
Reactivity
2
 

Health.
Exposure limit(s)
TLV (as TWA): 10 ppm; 52 mg/m3 (ACGIH 1994-1995). MAK: 10 ppm; 55 mg/m3; S (1992). NIOSH REL: TWA 10 ppm (55 mg/m3)
Poison_Class
4
Exposure effects
Repeated or prolonged exposure may cause CNS stimulation.
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea. May be harmful if swallowed. May cause central, peripheral, and autonomic nervous system effects.
   Inhalation
Causes respiratory tract irritation. Vapors may cause dizziness or suffocation. May cause central, peripheral, and autonomic nervous system effects.
   Skin
Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material. May be harmful if absorbed through the skin. n-Butyl acrylate causes sensitization and cross-sensitization with other acrylates.
   Eyes
Causes eye irritation.

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

Transport.
UN number
2348
Response guide
Hazard class
3
Packing Group
III
 
USCG CHRIS Code
BTC
 
HS Code
2916 12 90
 
Std. Transport #
4912215
 
IMO Chemical Code
17
IMO Pollution Category
B
IMO Hazard code
S/P