Chemicals, Elements, Formulas, Compounds, Chemistry.
purification. Heavy water (D₂O): Deuterium oxide, used as a moderator in nuclear reactors. Producer gas (CO + N₂): A mixture of carbon monoxide and nitrogen, used as a fuel. Marsh gas (CH₄): Methane, the main component of natural gas. Chemical Elements and Formulas — Organic Compounds: Vinegar