n-Butyl methacrylate

  • Butyl methacrylate
  • Butyl 2-Methyl-2-Propenate
Formula
CH2=C(CH3)COO(CH2)3CH3
Structure
Description
Clear, colorless liquid, sweet fruity odor.
Uses
Monomer for resins, solvent coatings, adhesives, oil additives, emulsions for textiles, leather & paper finishing.

Registry Numbers and Inventories.
CAS
97-88-1
EC (EINECS/ELINCS)
202-615-1
EC Index Number
607-033-00-5
EC Class
Flammable; Irritant; Sensitising
R 10 36/37/38 43
RTECS
OZ3675000
RTECS class
Drug; Reproductive Effector; Primary Irritant
UN (DOT)
2227
Beilstein/Gmelin
773960
Beilstein Reference
4-02-00-01525
Swiss Giftliste 1
G-3277
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
142.20
Melting point, °C
-75
Boiling point, °C
163
Vapor pressure, mmHg
2.4 (25 C)
Vapor density (air=1)
4.91
Saturation Concentration
0.24% at 20 C
Evaporization number
0.32 (butyl acetate=1)
Critical temperature
341
Critical pressure
26.4
Density
0.8951 g/cm3 (20 C)
Solubility in water
Insoluble
Viscosity
3.116 cp at 70 deg f
Surface tension
30 g/s2
Refractive index
1.4240 (20 C)
Partition coefficient, pKow
2.88
Heat of fusion
15.6 kJ/mol
Heat of vaporization
39.7 kJ/mol
Heat of combustion
-4890 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Keep refrigerated. Store in a cool, dry, well-ventilated area away from incompatible substances. Flammables-area. Store protected from moisture. Do not exceed 25-30C. Store protected from light. Keep away from oxidizing agents.
B3 D2B
Handling
Wash thoroughly after handling. Wash hands before eating. Remove contaminated clothing and wash before reuse. 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. Avoid contact with heat, sparks and flame. Use with adequate ventilation. Store protected from light. 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 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.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment. Scoop up with a nonsparking tool, then place into a suitable container for disposal. Remove all sources of ignition. 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. Polymerization at low temperatures may occur.
Incompatibilities
Strong acids, strong bases, strong oxidizing agents, strong reducing agents, moisture, heat.
Decomposition
Carbon monoxide, irritating and toxic fumes and gases, carbon dioxide.

Fire.
Flash Point,°C
49
Autoignition, °C
310
Upper exp. limit, %
8
Lower exp. limit, %
2
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. 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
Flammable
Hazards
Containers may explode due to polymerization.
Combustion products
Fire may produce irritating, corrosive and/or toxic gases.
Health
1
 
Flammability
2
 
 
Reactivity
2
 

Health.
Poison_Class
-
Exposure effects
May cause reproductive and fetal effects.
   Ingestion
Causes gastrointestinal irritation with nausea, vomiting and diarrhea.
   Inhalation
May cause severe irritation of the respiratory tract with sore throat, coughing, shortness of breath and delayed lung edema. Vapors may cause dizziness or suffocation. Causes irritation of the mucous membrane and upper respiratory tract.
   Skin
Causes skin irritation. May cause skin sensitization, an allergic reaction, which becomes evident upon re-exposure to this material.
   Eyes
Causes eye irritation. May cause conjunctivitis. Lachrymator. Causes redness and pain.

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 breathing is difficult, give oxygen. Get medical aid. DO NOT use mouth-to-mouth respiration. If breathing has ceased apply artificial respiration using oxygen and a suitable mechanical device such as a bag and a mask.
   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.

Transport.
UN number
2227
Response guide
Hazard class
3
Packing Group
III
 
USCG CHRIS Code
BMN
 
HS Code
2916 14 90
 
Std. Transport #
4912235
 
IMO Chemical Code
17
IMO Pollution Category
D
IMO Hazard code
S