Sodium Bicarbonate

Oxide	Analysis	Formula
Na2O	36.90%	1.00
CO2	52.38%	n/a
H2O	10.71%	n/a
Oxide Weight		62.00
Formula Weight		167.98

Notes

Used in cobalt sulfate stains. Also a major constituent of Egyptian paste.
The decomposition occurs in two stages: starting at 70°C it gradually decomposes into sodium carbonate, then around 1000°C it disassociates into Na₂O and CO2.

This material can also be used to precipitate soluble salts in clays, in a manner similar to barium carbonate. Around 0.3% was needed in one plant.

Related Information

Links

URLs	http://en.wikipedia.org/wiki/Sodium_bicarbonate Sodium bicarbonate at Wikipedia
Materials	Sodium Carbonate
Materials	Sodium Carbonate Decahydrate
Materials	Sodium Carbonate Heptahydrate
Materials	Barium Carbonate A pure source of BaO for ceramic glazes. This is 77% BaO and has an LOI of 23% (lost at CO2 on firing).

By Tony Hansen
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