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.
This material is an EXTREMELY FLAMMABLE GAS. (It can also be a COMPRESSED GAS.) It is VERY TOXIC INHALATION HAZARD and an EYE IRRITANT. This material is also a significant confined space hazard (toxicity, flammability, explosion). Liquefied hydrogen sulfide escaping from a cylinder can cause frostbite.