Sodium bicarbonate

The physical properties of sodium bicarbonate editor white crystals, or slightly opaque monoclinic crystal. 2.15 specific gravity. Odorless, taste salty, soluble in water, the solution was slightly alkaline due to hydrolysis, stable at room temperature in nature, heat easily decompose at above 50 ℃ gradually decompose at 440 ℃ completely lose carbon dioxide, no in dry air changes slow decomposition in moist air. Solubility: Soluble, 18 ℃; 16.0g, 60 ℃. 2 Chemical Properties editor heat decomposition. Slow decomposition in moist air. About starting at 50 ℃ reaction of CO ?, at 100 ℃ all into sodium carbonate. Rapid decomposition in weak acid in aqueous solution at 20 ℃ begins to decompose carbon dioxide and sodium carbonate, to a boiling point when all of decomposition. No agitation was its cold water made of phenolphthalein test paper was only slightly alkaline reaction, place or elevated temperatures in the basic increase. PH 25 ℃ freshly prepared 0.1mol / L aqueous solution is 8.3. Low toxicity, the median lethal dose (rat, oral) 4420mg / kg.