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Paris green (copper acetoarsenite) is an odorless emerald green crystalline powder which decomposes upon heating.

This material, and organoarsenic compound, is used primarily as an insecticide; it may be used as a wood preservative and a pigment, particularly for ships and submarines; and also finds use as an anthelmintic.

If this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 15 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit.

UN1585 Copper acetoarsenite, Hazard Class: 6.1; Labels: 6.1-Poisonous materials. STN: 49 232 20. UN3465 Organoarsenic compound, solid, n.o.s., Hazard Class: 6.1; Labels: 6.1-Poisonous materials, Technical Name Required

Can react vigorously with oxidizers. Emits highly toxic arsenic fumes on contact with acid or acid fumes; and in elevated temperatures.

Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. In accordance with 40CFR165, follow recommendations for the disposal of pesticides and pesticide containers. Must be disposed properly by following package label directions or by contacting your local or federal environmental control agency, or by contacting your regional EPA office.