ORTHO-ARSENIC ACID SOLUTION

SECTION 2: Hazards identification

EMERGENCY OVERVIEW: This light-green to yellow, odorless liquid is highly toxic and a severe irritant. This solution can severely irritate, redden, and potentially burn skin, eyes, and other contaminated tissue. Arsenic Acid is a confirmed human carcinogen and must be considered a potential human reproductive toxin. This product is not flammable or reactive; however, if exposed to high temperatures, toxic decomposition products (e.g., arsine, arsenic oxides) will be generated. Persons who respond to releases of this product must protect themselves from inhalation of vapors or mists generated by the product, especially in areas which are downwind of the spill. Extreme caution must be used when responding to spills. Emergency responders must wear the proper personal protective equipment suitable for the situation to which they are responding. SYMPTOMS OF OVER-EXPOSURE BY ROUTE OF EXPOSURE: The HAZARDOUS MATERIAL INFORMATION most significant routes of occupational overexposure are inhalation, and SYSTEM contact with skin and eyes. The symptoms of over-exposure to this product are as follows: HEALTH (BLUE) 3 INHALATION: If vapors, mists or sprays of this solution are inhaled, this product may cause pulmonary irritation. Damage to the respiratory system tissue may also occur, especially after prolonged or repeated exposures. Symptoms may include coughing, breathing difficulty, a sore throat, (RED) 0 laryngitis, headache, nausea, and vomiting. A “hole” in the nasal septum FLAMMABILITY can develop as a result of repeated inhalation exposures. Pulmonary edema, chemical pneumonitis, and other adverse health consequences may occur after severe overexposures. Severe inhalation exposures can be (YELLOW) 0 fatal. REACTIVITY It is important to note that high, repeated overexposures to this product can cause severe health effects. Chronic overexposure to Arsenic Acid can cause nerve damage, with “pins and needles” numbness and weakness of PROTECTIVE EQUIPMENT X the arms and legs. There have also been reports of adverse effects on the liver, kidneys, cardiovascular system, and blood systems associated with EYES RESPIRATORY HANDS BODY chronic overexposure to arsenic compounds. Subsequently, there is a potential for serious health consequences (e.g., cirrhosis, kidney failure, gangrene, anemia) from chronic overexposure to this product. Arsenic Acid SEE SECTION 8 is a confirmed human carcinogen. CONTACT WITH SKIN or EYES: Contact with the eyes will cause moderate For routine wood-treatment procedures. to severe irritation, pain, reddening, and watering. Blindness may occur, See Section 16 for Definition of Ratings especially after prolonged contact. Skin contact causes reddening, discomfort, and moderate to severe irritation. Skin contact may cause chemical burns (especially after prolonged contact); blistering of and damage to the skin. Skin contact with Arsenic Acid can result in darkening or loss of pigment in affected areas. Overexposure to this substance may also result in white lines in nails. SKIN ABSORPTION: Skin absorption is not a significant route of exposure for any component of this product. INGESTION: Ingestion is not anticipated to be a likely route of exposure to this product. If ingestion does occur, irritation and burns of the mouth, throat, esophagus, and other tissues of the digestive system will occur immediately upon contact. Arsenic Acid, a component of this product, is toxic by ingestion. Symptoms of such over-exposure can include nausea, vomiting, diarrhea. Chronic swallowing of this product (as may occur in situations involving poor hygiene practices) can result in symptoms of exposure described for “Inhalation”. Ingestion of this product may be fatal. INJECTION: Accidental injection of this product, via laceration or puncture by a contaminated object, may cause pain and irritation in addition to the wound. Symptoms described in “Inhalation” or Ingestion” may also occur.

Potential health effects

OR RISKS FROM EXPOSURE An Explanation in Lay Terms. In the event of exposure, the following symptoms may be observed: ACUTE: This solution is highly toxic and may be moderately to severely irritating and damaging to eyes, skin, mucous membranes, and any other exposed tissue. Skin contact may cause chemical burns, blisters, and scars; eye contact may cause blindness. If inhaled, moderate to severe irritation of the respiratory system may occur, with coughing, and breathing difficulty. Overexposures by inhalation and ingestion may be fatal. (Continued) CHRONIC: Arsenic Acid is a confirmed human carcinogen and must be considered a potential human reproductive toxin. Persistent irritation and dermatitis (reddening and inflammation of the skin) may result from chronic skin contact. Chronic inhalation exposure may result in nervous system effects. Chronic exposure may also result in liver, kidney, and blood effects. See Section 11 (Toxicological Information) for additional data. TARGET ORGANS Acute Skin, eyes, respiratory system, reproductive system. Chronic nervous system, cardiovascular system, blood, kidneys. What should I do if a hazardous situation occurs?