A substance is a crystalline solid, melting at 318 deg C, is white, odorless, tasteless caustic astringent (similar to the perceived taste when eating green banana), has density 2.13 g/cm3 at room temperature, conducts electric current in the molten state and in aqueous solution. Of the above properties which use to identify the lye?
Sodium hydroxide, also knownas lye or caustic soda, has the molecular formula NaOH and is a highly caustic metallic base. It is a white solid available in pellets, flakes, granules, and as a 50% saturated solution. Sodium hydroxide is soluble in water, ethanol and methanol. This alkali is deliquescent and readily absorbs moisture and carbon dioxide in air. Molecular formula NaOH Appearance White, waxy, opaque crystals Odor odorless Density 2.13 g/cm3 Melting point 318 °C, 591 K, 604 °F Boiling point 1388 °C, 1661 K, 2530 °F Solubility in water 111 g/100 mL (at 20 °C) Solubility in methanol 23.8 g/100 mL Solubility in ethanol <<13.9 g/100 mL
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