The use and time of coarse salt town house

Put 30 grams of raw salt in the cup at the lower position to purify the house. One is to put it in the corner around the house. The second is to put it in the toilet. The third is to put it in the kitchen.

Sodium chloride, the main component of salt, ionic compound. Pure sodium chloride crystal is a colorless and transparent cubic crystal. Due to the existence of impurities, sodium chloride is generally a white cubic crystal or a fine-grained powder with a specific gravity of 2. 165(25/4℃), a melting point of 80 1℃, a boiling point of 1442℃ and a density of 2. 165g/cm3.

Salty taste, easy deliquescence when containing impurities; Soluble in water or glycerol, insoluble in ethanol and hydrochloric acid, neutral and conductive in aqueous solution. Solid sodium chloride is not conductive, but molten sodium chloride is conductive. With the increase of temperature, the solubility in water increased slightly. When the temperature is lower than 0. 15℃, NaCl dihydrate can be obtained.