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Sodium bicarbonate (IUPAC name: sodium hydrogencarbonate [9]), commonly known as baking soda or bicarbonate of soda, is a chemical compound with the formula NaHCO 3. It is a salt composed of a sodium cation ( Na + ) and a bicarbonate anion ( HCO 3 − ).
Trona (trisodium hydrogendicarbonate dihydrate, also sodium sesquicarbonate dihydrate, Na 2 CO 3 ·NaHCO 3 ·2H 2 O) is a non-marine evaporite mineral. [4] [6] It is mined as the primary source of sodium carbonate in the United States, where it has replaced the Solvay process used in most of the rest of the world for sodium carbonate production.
Sodium bicarbonate (NaHCO 3) or baking soda, also a component in fire extinguishers, is often generated from sodium carbonate. Although NaHCO 3 is itself an intermediate product of the Solvay process, the heating needed to remove the ammonia that contaminates it decomposes some NaHCO 3 , making it more economical to react finished Na 2 CO 3 ...
The structure of sodium chloride, showing octahedral coordination around Na + and Cl − centres. This framework disintegrates when dissolved in water and reassembles when the water evaporates. Sodium compounds are of immense commercial importance, being particularly central to industries producing glass, paper, soap, and textiles. [6]
The bicarbonate ion carries a negative one formal charge and is an amphiprotic species which has both acidic and basic properties. It is both the conjugate base of carbonic acid H 2 CO 3; and the conjugate acid of CO 2− 3, the carbonate ion, as shown by these equilibrium reactions: CO 2− 3 + 2 H 2 O ⇌ HCO −
Sodium sesquicarbonate (systematic name: trisodium hydrogendicarbonate) Na 3 H(CO 3) 2 is a double salt of sodium bicarbonate and sodium carbonate (NaHCO 3 · Na 2 CO 3), and has a needle-like crystal structure.
Disk containing 1 μCi of sodium-22. Sodium-22 is a radioactive isotope of sodium, undergoing positron emission to 22 Ne with a half-life of 2.6019(6) years. 22 Na is being investigated as an efficient generator of "cold positrons" to produce muons for catalyzing fusion of deuterium.
Nahcolite is a soft, colourless or white carbonate mineral with the composition of sodium bicarbonate (Na H C O 3) also called thermokalite. It crystallizes in the monoclinic system. [4] Nahcolite was first described in 1928 for an occurrence in a lava tunnel at Mount Vesuvius, Italy. [2] Its name refers to the elements which compose it: Na, H ...