Disodium Octaborate Tetrahydrate

Na2B8O13.4H2O, Polybor

Chemistry

B2O367.500
Na2O15.020

Volatiles

H2O17.480

Links to Other Materials

Hazards

Miscellaneous

Notes

CAS Number 12280-03-4

This is a mild alkaline salt consisting of a fine white powder that is readily soluble in water. It dissolves even in cool water to give supersaturated solutions with high boron concentrations. This material is not generally used in ceramics.

It shows little tendency to cake except after prolonged storage or if it becomes severely wetted by rain or substantial water penetration. It is also capable of absorbing moisture if exposed to a humid environment.


URLs

Suppliers

Authors

XML

<?xml version="1.0" encoding="UTF-8"?>
<material name="Disodium Octaborate Tetrahydrate" descrip="Na2B8O13.4H2O, Polybor" generic="1" rawmineral="0" searchkey="" loi="0.00">
<families>
<family name="Flux Source"/>
</families>
<regions>
<region name="North America"/>
</regions>
<oxides>
<oxide symbol="Na2O" name="Sodium Oxide, Soda" status="U" percent="15.020" tolerance=""/>
<oxide symbol="B2O3" name="Boric Oxide" status="" percent="67.500" tolerance=""/>
</oxides>
<volatiles>
<volatile symbol="" name="" percent="17.480" tolerance=""/>
</volatiles>
<references>
<reference name="seealso" reason=""/>
<reference name="seealso" reason=""/>
<reference name="seealso" reason=""/>
<reference name="seealso" reason=""/>
<reference name="seealso" reason=""/>
</references>
<hazards>
<hazard name="Borax"/>
</hazards>
<suppliers>
<supplier name="Generic" country="" url="" label=""/>
<supplier name="Rio Tinto Borax" country="US" url="http://www.borax.com" label=""/>
</suppliers>
<notes>
<note>CAS Number 12280-03-4

This is a mild alkaline salt consisting of a fine white powder that is readily soluble in water. It dissolves even in cool water to give supersaturated solutions with high boron concentrations. This material is not generally used in ceramics.

It shows little tendency to cake except after prolonged storage or if it becomes severely wetted by rain or substantial water penetration. It is also capable of absorbing moisture if exposed to a humid environment.
</note>
</notes>
</material>



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