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sodium (GB)
sodium (F)
sodio (ES)
sódio (PO)
sodio (I)

Very light, soft and silvery shiny metal or with 2.4% the sixth most common element (Na) of the earth's crust. Because sodium is the main constituent of soda (sodium carbonate), it is usually referred to in foreign languages (as it used to be in German) as sodium. It occurs in numerous minerals. A significant amount of sodium is also dissolved in the oceans. The main sodium compound is cook salt (Sodium chloride = NaCl). In contrast, sodium plays a minor role in plants. It is only required by so-called C4 (e.g. millet, corn, sugar cane) and CAM plants (e.g. pineapple, cactus); but not of C3 plants (such as the Rebstock ). Sodium nitrate (sodium salt of nitric acid = oxygen acid of nitrogen) with the popular name Chilesalpeter is called fertilizer and used as a preservative. Slight traces of sodium are present in the wine; see also under total extract,

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