Also lacrymation, cough, labored breathing, excessive salivary and sputum formation. If unconscious or breathing is difficult, administer artificial respiration with supplemental oxygen. Keep warm and at rest. Wash affected areas with copious quantities of water for at least 15 minutes. Remove contaminated clothing and shoes as rapidly as possible.
Forms explosive chlorine with chlorates.
Since SO2 boils at 14dF, gaseous 5d2 vapor is nearly always present. Evacuate all personnel from affected area, use self-contained breathing apparatus or ventilate area to less than TWA before entering contaminated area to stop leak or retrieve leaking cylinder. Use chemical protective boots and clothing if there is the potential for contact with the moist gas or acid. If the gas can not be vented into a neutralizing alkaline solution, provide ventilation for dilution and dispersion. Avoid low lying, stagnant areas as gas is heavier than air.