May cause bronchiospasm and pulmonary oedema, which may be delayed in onset. May also cause severe headache. All symptoms may be delayed and long-lasting. Long term exposure may cause bronchitis. Ingestion Not applicable except for solutions, in which case the symptoms would be expected to parallel those for inhalation.
Most legal limits are similar.
Irritancy Severe Sensitization Information not available. No information is available. No information is available. Concentrations of 150 ppm were fatal to guinea pigs in 44 minutes. Characteristic acute effects from over exposure are coughing, eyes and nose watering and the development of a sore throat.