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Disodium Octaborate Tetrahydrate

Formula: Na2B8O13.4H2O
Alternate Names: Na2B8O13.4H2O, Polybor

Oxide Weight340.63
Formula Weight412.78
If this formula is not unified correctly please contact us.

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.

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By Tony Hansen

XML for Import into INSIGHT

<?xml version="1.0" encoding="UTF-8"?> <material name="Disodium Octaborate Tetrahydrate" descrip="" searchkey="Na2B8O13.4H2O, Polybor" loi="0.00" casnumber="12280-03-4"> <oxides> <oxide symbol="Na2O" name="Sodium Oxide, Soda" status="" percent="15.020" tolerance=""/> <oxide symbol="B2O3" name="Boric Oxide" status="" percent="67.500" tolerance=""/> </oxides> <volatiles> <volatile symbol="H2O" name="Water" percent="17.480" tolerance=""/> </volatiles> </material>

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