The 'acid' group
These nouns are the technical names for chemical substances.
acid alkali bromide chloride hydrate nitrate nucleic acid oxide peroxide phosphate silicate sulphate sulphide
These fossils can be easily dissolved out of limestones with acid.
It contains high amounts of laurate, a fatty acid used in the manufacture of soaps, shampoos and detergents.
Limescale removers for bathrooms and kitchens are all acids of one type or another.