Symbol 51:9
Previous sign Next sign All signs in Group 51
51:9 · In Diderot's Encyclopedia this sign is said to mean blanc d'Espagne, a natural calcium carbonate, for the chemists of eighteenth century France.
51:9 · In Diderot's Encyclopedia this sign is said to mean blanc d'Espagne, a natural calcium carbonate, for the chemists of eighteenth century France.