Mescalero-Chiricahua Apache is a family of languages that is spoken in Oklahoma and New Mexico. The Oklahoma language is in dire need of assistance; while most Indigenous languages in North America are in danger of extinction, this one has as few as three native speakers remaining.
Basic problems with corrosive chemicals... Corrosive: A chemical, (solid, liquid or gas), that can cause destructive damage to body tissues at the site of contact. It can cause severe burns to the skin and can eat through clothing, metal and other materials.
Reacts slowly with water/(moist) air: release of toxic and corrosive gases/vapours (hydrogen chloride). Reacts on exposure to water (moisture) with. (some) metals: release of highly flammable gases/vapours (hydrogen). Decomposes on exposure to temperature rise: release of toxic and corrosive.