Sodium bicarbonate
Redirected from Baking soda
It is also used as an antacid to treat acid indigestion[?] and heartburn. The anhydrous form is also used to absorb moisture and odours—a box can be left in the refrigerator for this purpose.
Sodium bicarbonate, when exposed to a moderately strong acid, releases carbon dioxide:
It is used in combination with acidic compounds as a leavening agent in baking: some forms of baking powder contain sodium bicarbonate.
Formerly, it was used as a source of carbon dioxide for soda water.
See also: baking powder, sodium carbonate, list of minerals
Sodium bicarbonate (NaHCO3), or sodium hydrogen carbonate, also known as baking soda, is a soluble white anhydrous[?] or crystalline compound, with a slight alkaline taste resembling that of sodium carbonate. It is found in many mineral springs and also produced artificially.
General
Name
Sodium hydrogen carbonate
Chemical formula
NaHCO3
Appearance
White solid
Physical
Formula weight
84.0 amu
Melting point
Decomposes at 543 K (270 °C)
Density
2.2 ×103 kg/m3
Crystal structure
?
Solubility
10.3 g in 100g water
Thermochemistry
ΔfH0solid
-951 kJ/mol
S0solid
102 J/mol·K
Safety
Ingestion
Safe except in very large quantities.
Inhalation
May cause irritation.
Skin
May cause irritation.
Eyes
May cause pain and redness
More info
Hazardous Chemical Database (http://ull.chemistry.uakron.edu/erd/chemicals/10/9917.html)
SI units were used where possible. Unless otherwise stated, standard conditions were used.