Crosslinked Methacrylate Monomer

SECTION 2: Hazards identification

EMERGENCY OVERVIEW: WARNING: For Mixture: POISON! DANGER! May be fatal if swallowed. Harmful if inhaled or absorbed through skin. Vapor Harmful. Flammable. Effects Central Nervous System. May cause blindness. Cannot be made not poisonous. For Methacrylate: Acute Hazards: Eyes: May irritate. Respiratory Tract: May irritate. Skin: May cause rashes. Symptoms: Headaches, nausea, staggering gait, confusion, drowsiness and unconsciousness. Chronic Hazards: Eyes: May cause eye corrosion and permanent injury. Liver and Kidneys: May cause changes in liver and kidney function or damage. Nervous System: Repeated and prolonged over exposure may cause permanent damage. Skin: May cause allergic skin rashes. For Dimethacrylate: Acute Hazards: Eyes: Suspected irritant. Symptoms may include burning, tearing, redness or swelling. Ingestion: Slight hazard, if ingested in large quantities. Inhalation: Suspected respiratory tract irritant hazard. No significant signs of adverse health hazard due to low volatility of material. However, aerosols or vapors which are generated at elevated temperatures may cause irritation. Symptoms may include coughing, mucous production and shortness of breath. Skin: Moderate irritant/allergic sensitizer. Chronic Hazards: Skin: Extensive/prolonged or repeated exposure can result in significant absorption. A major component in this product has been shown to produce allergic skin sensitization in guinea pigs. Cross-sensitization reactions to similar materials have also been reported in this species. Dermatitis has been seen in animal studies.

Medical Conditions Generally Aggravated by Exposure

This material or its emissions may induce allergic or sensitization reaction and thereby aggravate systemic disease. SECTION 3 - HAZARDS IDENTIFICATION CONTINUED EMERGENCY OVERVIEW CONTINUED: For Dimethyltolylamine: Acute Hazards: Eyes: May cause irritation. Ingestion: May cause methemoglobinemia. Inhalation: Causes elevated methemoglobin in the blood. Symptoms may include headaches, weakness and dizziness, and can be recognized by the blue color of the lips, fingernails, nose and earlobes. Vapor or mist is irritating to mucous membranes and upper respiratory tract. Skin Absorption: Liquid is rapidly absorbed through skin. Absorption of this product into the body causes the formation of methemoglobin, which in sufficient concentration causes cyanosis, symptoms include headache, dizziness, nausea and abdominal pain. Chronic Hazards: In case of blue discoloration (cyanosis) of skin, lips or fingernails give oxygen to breathe. No alcohol or physical exertion. Contact a physician. Existing cardiovascular or respiratory conditions, blood disorders and dermatitis. Note to Physicians: Absorption of this product leads to formation of methemoglobin, which in sufficient concentration causes cyanosis. Reversion of methemoglobin to hemoglobin occurs spontaneously after termination of exposure, moderate degree of cyanosis need to be treated only by supportive measures such as bed rest and oxygen inhalation. Thorough cleansing of the entire contaminated area is of utmost importance. If cyanosis is severe, intravenous injection of methylene blue, 1-2 mg/kg body weight over a 5 minute period as a 1 % solution may be of value. If elevated methemoglobin persists after an hour, the treatment may be repeated, but the total dose should not exceed 7 mg/kg body weight. Cyanocobalmin (Vitamin B-12), 1 mg intramuscularly is reported to speed recovery. Intravenous fluids and blood transfusions may be indicated in very severe exposures. For p-Hydroxyanisole: Acute Hazards: Eyes: Risk of serious damage. Ingestion: Harmful if swallowed. Inhalation: Harmful if inhaled, irritating to mucous membranes and upper respiratory tract. Skin: Harmful if absorbed through skin. Duration: Depending on the intensity and duration of exposure, effects may vary from mild irritation to severe destruction of tissue. Chronic Hazards: Eyes: Prolong contact may cause eye damage. Skin: May cause severe burns or irritation. SECTION 3 - HAZARDS IDENTIFICATION CONTINUED CARCINOGENICITY: The Dimethacrylate may contain trace quantities of substances known to the state of California to cause cancer and/or reproductive toxicity. All other components are not listed as carcinogens by ACGIH, IRAC or NTP.

Principle Routes of Exposure

Ingestion, Inhalation, Eyes or Skin.