Letter | Published:

On the Volatility of Borax


IN a discussion of the standardisation of hydrochloric acid with different standard substances (J. Amer. Chem. Soc., 70, 1772, 1926), I made the following remark: “After the substance [borax] had been dried at 200°, the crucible was placed in an electric oven at a temperature of 700–750°, until constant weight was attained. When afterwards it was heated at 800°, at which temperature the salt fuses, the weight did not change. We cannot confirm the statement of H. V. A. Briscoe, P. L. Robinson, and G. E. Stephenson (J. Chem. Soc., 122, 150, 1925), who state that fused borax loses sodium oxide. Even after the substance had been heated for two hours at 800° the weight did not change.”

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.


All prices are NET prices.

Author information

Rights and permissions

Reprints and Permissions

About this article

Further reading


By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.