Isobutyl methacrylate

  • Butylmethacrylate
  • 2-Methylpropyl methacrylate
Formula
C8H14O2
Structure
Description
Clear, colorless liquid. No reported odor.
Uses
Monomer for acrylic resins.

Registry Numbers and Inventories.
CAS
97-86-9
EC (EINECS/ELINCS)
202-613-0
EC Index Number
607-113-00-X
EC Class
Flammable; Irritant; Sensitising; Dangerous for the Environment
RTECS
OZ4900000
RTECS class
Drug; Reproductive Effector
UN (DOT)
2283
Beilstein/Gmelin
1747595
Beilstein Reference
4-02-00-01526
Swiss Giftliste 1
G-3227
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C8H14O2
Formula mass
142.22
Melting point, °C
-61
Boiling point, °C
155
Vapor pressure, mmHg
4
Vapor density (air=1)
4.9
Critical temperature
339
Critical pressure
26.3
Density
0.8858 g/cm3 (20 C)
Solubility in water
600 mg/L
Refractive index
1.42 (20 C)
Partition coefficient, pKow
2.66

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Refrigerator/flammables.
Handling
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Keep container tightly closed. Avoid contact with heat, sparks and flame. Use with adequate ventilation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames. Do not breathe vapors.
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 protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Respirators
A respiratory protection program that meets OSHA's 29 CFR 1910.134 and ANSI Z88.2 requirements or European Standard EN 149 must be followed whenever workplace conditions warrant a respirator's use. 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
Avoid runoff into storm sewers and ditches which lead to waterways. Clean up spills immediately, using the appropriate protective equipment. Cover with sand, dry lime or soda ash and place in a closed container for disposal. Remove all sources of ignition. Use a spark-proof tool. Provide ventilation.
Stability
Stable under normal temperatures and pressures. May polymerize on exposure to light.
Incompatibilities
Strong oxidizing agents, strong acids, strong bases.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
41 (closed cup)
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Water runoff can cause environmental damage. Dike and collect water used to fight fire. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion. Use water spray to keep fire-exposed containers cool. Combustible Liquid. Containers may explode when heated. Extinguishing media: Use water spray to cool fire-exposed containers. In case of fire, use water fog, dry chemical, carbon dioxide, or regular foam.
Fire potential
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
Thermal decomposition may yield oxides of carbon.
Health
2
 
Flammability
2
 
 
Reactivity
0
 

Health.
Poison_Class
5
Exposure effects
Effects may be delayed.
   Ingestion
Ingestion of large amounts may cause CNS depression. Causes gastrointestinal tract irritation.
   Inhalation
Causes respiratory tract irritation. Aspiration may lead to pulmonary edema. Can produce delayed pulmonary edema. Inhalation at high concentrations may cause CNS depression and asphixiation.
   Skin
Causes skin irritation.
   Eyes
Causes eye irritation. May cause chemical conjunctivitis and corneal damage.

First aid
 
   Ingestion
Never give anything by mouth to an unconscious person. Get medical aid immediately. 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.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Wash clothing before reuse.
   Eyes
Immediately flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
2283
Response guide
Hazard class
3
Packing Group
III
 
USCG CHRIS Code
BMI
 
Std. Transport #
4912037
 
IMO Chemical Code
17
IMO Pollution Category
D
IMO Hazard code
S