Cyclohexylacetylene

SECTION 2: Hazards identification

CHEMWATCH HAZARD RATINGS Min Max Flammability 3 Toxicity 2 Min/Nil=0 Body Contact 2 Low=1 Reactivity Moderate=2 1 High=3 Chronic 2 Extreme=4 CANADIAN WHMIS SYMBOLS EMERGENCY OVERVIEW RISK Harmful if swallowed. HARMFUL - May cause lung damage if swallowed. Irritating to eyes, respiratory system and skin. Highly flammable. Vapours may cause drowsiness and dizziness.

Potential Acute Health Effects

SWALLOWED ■ Accidental ingestion of the material may be harmful; animal experiments indicate that ingestion of less than 150 gram may be fatal or may produce serious damage to the health of the individual. ■ Swallowing of the liquid may cause aspiration into the lungs with the risk of chemical pneumonitis; serious consequences may result. (ICSC13733). EYE ■ This material can cause eye irritation and damage in some persons. SKIN ■ This material can cause inflammation of the skin oncontact in some persons. ■ The material may accentuate any pre-existing dermatitis condition. ■ Repeated exposure may cause skin cracking, flaking or drying following normal handling and use. ■ 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. ■ Inhalation of vapours may cause drowsiness and dizziness. This may be accompanied by sleepiness, reduced alertness, loss of reflexes, lack of co-ordination, and vertigo. ■ Inhalation of vapours or aerosols (mists, fumes), generated by the material during the course of normal handling, may be damaging to the health of the individual. ■ Inhalation hazard is increased at higher temperatures. ■ Inhalation of high concentrations of gas/vapour causes lung irritation with coughing and nausea, central nervous depression with headache and dizziness, slowing of reflexes, fatigue and inco-ordination. ■ Central nervous system (CNS) depression may include general discomfort, symptoms of giddiness, headache, dizziness, nausea, anaesthetic effects, slowed reaction time, slurred speech and may progress to unconsciousness. Serious poisonings may result in respiratory depression and may be fatal.

Potential chronic health

■ Long-term exposure to respiratory irritants may result in disease of the airways involving difficult breathing and related systemic problems. Substance accumulation, in the human body, may occur and may cause some concern following repeated or long-term occupational exposure.