Trityl chloride

SECTION 2: Hazards identification

CHEMWATCH HAZARD RATINGS Min Max Flammability 1 Toxicity 0 Min/Nil=0 Body Contact 4 Low=1 Reactivity High=3 Chronic CANADIAN WHMIS SYMBOLS 1 of 10 EMERGENCY OVERVIEW RISK Reacts violently with water. Causes severe burns. Risk of serious damage to eyes. Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.

Potential Acute Health Effects

SWALLOWED ! The material can produce severe chemical burns within the oral cavity and gastrointestinal tract following ingestion. ! Ingestion of acidic corrosives may produce burns around and in the mouth. the throat and esophagus. ! The material has NOT been classified as "harmful by ingestion". This is because of the lack of corroborating animal or human evidence. EYE ! The material can produce severe chemical burns to the eye following direct contact. Vapors or mists may be extremely irritating. ! If applied to the eyes, this material causes severe eye damage. ! Direct eye contact with acid corrosives may produce pain, tears, sensitivity to light and burns. Mild burns of the epithelia generally recover rapidly and completely. SKIN ! The material can produce severe chemical burns following direct contactwith the skin. ! Skin contact with acidic corrosives may result in pain and burns; these may be deep with distinct edges and may heal slowly with the formation of scar tissue. ! Skin contact is not thought to have harmful health effects, however the material may still produce health damage following entry through wounds, lesions or abrasions. ! Open cuts, abraded or irritated skin should not be exposed to this material. ! Entry into the blood-stream, through, for example, cuts, abrasions or lesions, may produce systemic injury with harmful effects. Examine the skin prior to the use of the material and ensure that any external damage is suitably protected. INHALED ! The material can cause respiratory irritation in some persons. The body's response to such irritation can cause further lung damage. ! Corrosive acids can cause irritation of the respiratory tract, with coughing, choking and mucous membrane damage. There may be dizziness, headache, nausea and weakness. ! Persons with impaired respiratory function, airway diseases and conditions such as emphysema or chronic bronchitis, may incur further disability if excessive concentrations of particulate are inhaled.

Potential chronic health

Repeated or prolonged exposure to acids may result in the erosion of teeth, swelling and or ulceration of mouth lining. Irritation of airways to lung, with cough, and inflammation of lung tissue often occurs. Long-term exposure to respiratory irritants may result in disease of the airways involving difficult breathing and related systemic problems. Limited evidence suggests that repeated or long-term occupational exposure may produce cumulative health effects involving organs or biochemical systems. Long term exposure to high dust concentrations may cause changes in lung function i.e. pneumoconiosis; caused by particles less than 0.5 micron penetrating and remaining in the lung. 2 of 10