Mesurol 75-W

SECTION 2: Hazards identification

Physical Properties

Appearance/Odor

White to off-white mild, non-offensive Symptoms of Acute Exposure Inhalation, dermal absorption or ingestion of this material may result in systemic intoxication due to inhibition of the enzyme cholinesterase. The sequence of development of systemic effects varies with the route of entry, and the onset of symptoms may be delayed up to one hour or more. Complete symptomatic recovery from sublethal poisoning usually occurs within 24-48 hours once the source of exposure is completely removed. Animal studies have shown that this product is moderately toxic orally and mildly toxic dermally. First symptoms of poisoning may be nausea, increased salivation, lacrimation, blurred vision and constricted pupils. Other symptoms of systemic poisoning include vomiting, diarrhea, abdominal cramping, dizziness and sweating. After inhalation, respiratory symptoms like tightness of chest, wheezing, and laryngeal spasms, may be pronounced at first. If the poisoning is severe, then symptoms of convulsions, low blood pressure, cardiac irregularities, loss of reflexes and coma may occur in extreme cases, death may occur due to a combination of factors such as respiratory arrest, paralysis of respiratory muscles or intense bronchoconstrictions. Medical Conditions Likely to be Aggravated by Exposure No specific medical conditions are known which may be aggravated by exposure to the active ingredient in this product; however, any disease, medication or prior exposure which reduces normal cholinesterase activity may increase susceptibility to the toxic effects of the active ingredient. Pulmonary and respiratory diseases may be aggravated by exposure to respirable crystalline silica, which may be contained in this formulation.

Principle Routes of Exposure

May irritate eyes, nose, throat and skin. Hazardous Decomposition Products CO, Methyl Amines, CH3NCO, Methyl mercaptan Unusual Fire, Explosion, and Reactivity Hazards During the routine handling of this material, there should be little risk of a dust explosion. However, tests on similar organic materials indicate that an explosive mixture can develop. Therefore, appropriate preventative measures should be taken. If a large dust cloud develops, turn off any devices that may cause a spark and leave the area until the cloud dissipates. Additional information on this subject is available upon request.