Naphthalene
Safety Moment Naphthalene Flammable solid Acute oral toxicity Respiratory hazard Aquatic toxicity Flash Point 79 °C (174.2 °F) Suspected of causing cancer. Very toxic to aquatic life LD50 Oral (rat) 490.0 mg/kg LC50 Inhalation (rat) > 340 mg/L 1 h LC50 (trout) 0.9 - 9.8 mg/L 96 h Mothballs and other products containing naphthalene are solids that turn into toxic gas. The toxic gas kills insects and may repel animals. flash point of a volatile material is the lowest temperature at which it can vaporize to form an ignitable mixture in air. BP: 424°F / 218 C MLT: 176°F / 77 C
Safety Moment Naphthalene Exposure Routes: inhalation, skin absorption, ingestion, eye contact Symptoms: irritation, headache, confusion, nausea, vomiting, abdominal pain, irritated bladder… Best practices: Ensure adequate ventilation and avoid breathing vapors Handle with gloves to prevent contact with skin. Wash skin thoroughly after handling. Store away from heat/sparks in dry and well-ventilated place Avoid release to the environment Do not put down the drain Naphthalene SDS, Sigma Aldrich. http://www.sigmaaldrich.com/catalog/product/aldrich/185604?lang=en®ion=US Naphthalene, NIOSH Pocket Guide to Hazardous Chemicals, Center for Disease Control. http://www.cdc.gov/niosh/npg/npgd0439.html