Remove from exposure area to fresh air. Get professional medical assistance immediately. Do NOT induce vomiting to a victim who is unconscious, not breathing, or convulsing. Treat symptomatically and supportively. Dangerous fire hazard when exposed to heat or flame.
Vapor is heavier than air and danger of flashback exists.
Fire may produce toxic fumes. Always wear Self Contained Breathing Apparatus. Eliminate sources of ignition. Isolate the spill area. Stop leak in a safe and practical manner.