Chinese name: Sodium bicarbonate
English name: Sodium bicarbonate
CAS: 144-55-8
EINECS number: 205-633-8
Molecular formula: CHNaO3
MDL number: MFCD00003528
Molecular weight: 84.01
Appearance: white, salty, powder or crystal.
Appearance: white powder or opaque monoclinic crystal system fine crystal. Odorless, salty. It is less soluble in water than sodium carbonate. Solids begin to decompose gradually into sodium carbonate, carbon dioxide and water above 50 ° C, and decompose completely at 270 ° C. Sodium bicarbonate is an acid salt formed after the neutralization of a strong base and a weak acid, and is weakly alkaline when dissolved in water. This property is often used as a leavening agent in food preparation. Sodium bicarbonate will remain sodium carbonate after the action, and too much use will give the finished product an alkali taste.
Solubility: soluble in water, insoluble in ethanol, etc.
Melting point: >300 °C(lit.)
Boiling point: 851°C
Density: 2.16 g/mL at 25 °C(lit.)
Refractive index: 1.500
Storage conditions: 2-8°C
Solubility: H2O: 1 M at 20 °C, clear, colorless
Form: solution (7.5%)
Specific gravity: 2.159
Color: White
PH: 8.3 (0.1molfreshly prepared)
Odor: Odorless
Acidity coefficient (pKa) : (1) 6.37, (2) 10.25 (carbonic (at 25℃)
ph range of acid-base indicator discoloration: 7.8-8.2
Water solubility: 9 g/100 mL (20 ºC)
Decomposition: 50 °C
Merck: 14,8583
BRN: 4153970
BCS: Class1
Stability: Stable.
LogP: -4.010 (est)
use
Used in food, medicine, film production, tanning, mineral processing, metallurgy, fiber, rubber and other industries, can also be used as detergent, fire extinguishing agent, used as a starter in food industry, soda and cold drinks in carbon dioxide generation agent
China
