Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity
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Octadecyl methacrylate(32360-05-7)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Handling and Storage Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity

Product Identification

Product Name
Octadecyl methacrylate
Synonyms
2-Propenoic acid, 2-methyl-, octadecyl ester
Methacrylic acid, octadecyl ester
Methacrylic acid, stearyl ester
Octadecyl 2-methylprop-2-enoate
Stearyl methacrylate
CAS
32360-05-7
Formula
C22H42O2
Molecular Weight
338.57
EINECS
251-013-5

Physical and Chemical Properties

Appearance
White waxy solid with a musty odor.
Solubility in water
Insoluble
Melting Point
24
Boiling Point
414
Vapor Pressure
4.5E-7 (25 C)
Density
0.86 g/cm3 (25 C)
Partition Coefficient
10.38
Heat Of Vaporization
66.7 kJ/mol

First Aid Measures

Ingestion
Ingestion unlikely. However, if ingested, obtain emergency medical attention.
Inhalation
If overcome by exposure, remove victim to fresh air immediately. Give oxygen or artificial respiration as needed. Obtain emergency medical attention. Prompt action is essential.
Skin
Immediately remove contaminated clothing. Wash skin thoroughly with mild soap/water. Flush w/lukewarm water for 15 minutes. If sticky, use waterless cleaner first. Seek medical attention if ill effect or irritation develops.
Eyes
In case of eye contact, immediately rinse with clean water for 20-30 minutes. Retract eyelids often. Obtain emergency medical attention.

Handling and Storage

Storage
Prevent moisture contact. Store in tightly closed, properly vented containers away from heat, sparks, open flame, strong oxidizers, radiation and other initiators. Prevent contamination by foreign materials. Use only non-sparking tools and limit storage time.

Hazards Identification

Skin
This material is expected to be a skin irritant. This material may cause an allergic skin reaction (sensitization) in susceptible individuals upon repeated exposure.
Eyes
This material is expected to cause eye irritation.
Hazards
High temperatures, inhibitor depletion, accidental impurities, or exposure to radiation or oxidizers may cause spontaneous polymerizing reaction generating heat/pressure. Closed containers may rupture or explode during runaway polymerization.

Exposure Controls/Personal Protection

Personal Protection
Eye protection such as chemical splash goggles and/or face shield must be worn when possibility exists for eye contact due to splashing or spraying liquid, airborne particles, or vapor. Contact lenses should not be worn. When skin contact is possible, protective clothing including gloves, apron, sleeves, boots, head and face protection should be worn. This equipment must be cleaned thoroughly after each use.
Exposure Effects
This material or its emissions may induce an allergic or sensitization reaction and thereby aggravate systemic disease.
Poison Class
5

Fire Fighting Measures

Flash Point
185
Fire Fighting
Extinguish with dry chemical, CO2, water spray, foam or water fog. Do not enter fire area without proper protection. Fight fire from safe distance/protected location. Heat/impurities may increase temperature/build pressure/rupture closed containers, spreading fire, increasing risk of burns/injuries. Water may be ineffective in firefighting due to low solubility. Use water spray/fog for cooling. Pressure relief system may plug with solids, increasing risk of overpressure. Notify authorities if liquid enters sewer/public waters.

Accidental Release Measures

Small spills/leaks
Spilled or released material may polymerize and release heat/gases. Extinguish all ignition sources and ventilate area. Wear protective equipment during cleanup. Dike and recover large spill. Soak up small spill with inert solids (such as vermiculite, clay) and sweep/shovel into vented disposal container. Wash spill area with a strong detergent and water solution; rinse with water but minimize water use during cleanup. For spills on water, contain, minimize dispersion and collect. Dispose/report per regulatory requirements.

Stability and Reactivity

Incompatibilities
Strong oxidizing agents, reducing agents, free radical initiators.
Stability
Unstable (reactive) upon depletion of inhibitor. Hazardous polymerization may occur.
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