Sodium bicarbonate (chemical formula: NaHCO ), commonly known as
bicarbonate of soda, soda ash, cao, baked with alkali and so on,
the small white crystal, solubility in water less than soda.
Sodium bicarbonate is a white alkaline powder that is easily
soluble in water. When it combines with water, it starts to release
carbon dioxide and CO2. In acidic liquid (such as juice), the
reaction is faster.
Sodium bicarbonate will remain sodium carbonate after the action,
use too much will make the finished product have alkali taste.
Sodium bicarbonate aqueous solution is weak alkaline, commonly
known as baking soda and baking soda.
Heat decomposes easily. Slowly decomposes in moist air. About 50 ℃
start reaction CO , in all 100 ℃ into sodium carbonate. It
decomposes rapidly in weak acids, and its aqueous solution begins
to decompose carbon dioxide and sodium carbonate at 20℃, and all
decompose at the boiling point. Soluble in 10 parts water at 25℃,
soluble in 12 parts water at about 18℃, insoluble in ethanol. An
unstirred solution made of cold water reacts only slightly with
phenolphthalein, increasing its alkalinity when placed or raised.
The pH value of 0.1mol/L aqueous solution prepared fresh at 25℃ was
8.3. Low toxicity
Folding security terminology
Avoid contact with skin and eyes.
Dry, avoid light, keep sealed.