Formula: Na2CO3.10H2O Hydrated normal carbonate
Specific gravity: 1.478
Colour: Colourless, white, grey, yellow
Solubility: Soluble in water forming alkali solution, effervesces in acid.
On slight heating natron decomposes to thermonatrite and H2O.
It forms from water solution below 32oC but when other salts are present the temperature limit may be lower.
It occurs in soda lakes. In the Eastern Gobi desert it is associated with
gaylussite and calcite
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