Explanatory notes
… 4 ). This product, more or less highly concentrated, gives various hydrates. It attacks the skin. Used in analyses. (C) … agent. (3) Nitrogen dioxide (nitroxyl, nitrous vapours, “nitrogen peroxide”) (NO 2 ). Colourless liquid at … 70). Finely powdered silica is used, e.g., as a filler for various types of natural and synthetic rubber and other …