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Sodium Hydroxide

Deflocculant

Formula: NaOH

OxideAnalysisFormula
Na2O77.50%1.000
LOI22.50
Oxide Weight62.00
Formula Weight80.00
If this formula is not unified correctly please contact us.

Also called caustic soda.
This is a powerful deflocculant in clay slurries and casting slips and behaves in a manner silimar to soda ash. However, it is corrosive and thus seldom used commercially.

Some people also use this for its chemistry to source Na2O to the glaze (it does not form crystals like soda ash). During the firing NaOH picks up oxygen and becomes Na2O.H2O. Thus we can deem Na2O.H2O as entering the kiln (weighing 80) and exiting as Na2O (weighing 62).


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By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Sodium Hydroxide" descrip="Deflocculant" searchkey="" loi="0.00" casnumber=""> <oxides> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="77.500" tolerance=""/> </oxides> <volatiles> <volatile symbol="LOI" name="Loss on Ignition" percent="22.500" tolerance=""/> </volatiles> </material>


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