Boric Acid

$4.00 Per Pound

Boric acid is a white powder that is used as an additive to compositions containing aluminum and a nitrate. The metal powder can reduce the nitrate to an amide, which will react with the metal powder in a very exothermic reaction that can lead to the spontaneous ignition of the composition. This process is often accompanied by a smell of ammonia and is most likely to occur with wet compositions. The addition of a few percent boric acid can often prevent this reaction from taking place since it neutralizes the very basic amides forming ammonia and a borate. It is also advisable to avoid using a water-soluble binder for these compositions. Using red gum or shellac with alcohol or nitrocellulose lacquer is safer. Boric acid is hygroscopic. The use of boric acid with magnesium or magnalium is not advised, as it actively attacks and corrodes these metals.

In stock

SKU: FCB046 Category:


Boric acid is really poisonous if taken internally, and should be cleaned up very well after using

Additional information

Weight 1 lbs
Dimensions 8 × 6 × 2 in

1 review for Boric Acid

  1. MontanaSky (verified owner)

    This is a must-have for any pyrotechnic makers “toolbox”.
    As a pharmacist, I have also recommended it to treat certain skin ailments.
    Boric acid powder has many uses but none more important than preventing spontaneous combustion. Please be safe when mixing chems…do your homework. HF.

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