mhchem – Type­set chem­i­cal for­mu­lae/equa­tions and Risk and Safety phrases

Cur­rently, the mhchem bun­dle con­sists of two pack­ages: mhchem and rsphrase. The mhchem pack­age pro­vides two com­mands: one for type­set­ting chem­i­cal molec­u­lar for­mu­lae and one for type­set­ting chem­i­cal equa­tions with these for­mu­lae. The rsphrase pack­age con­tains the text of all of­fi­cial Risk and Safety (R and S) Phrases that are used to la­bel chem­i­cals. At the time be­ing, these phrases are avail­able in Dan­ish, English, French, Ger­man (cur­rent spelling), and Span­ish.