Another oxalic question

[Dallasbeek]

Barkeepers Friend, a household cleaner, contains oxalic acid.  It's good for cleaning all kinds of things without being abrasive.  Does anyone have an idea what the concentration of OA is in it?  The packaging doesn't give a clue.

[Michael Bush]

The package needs to be 100% oxalic acid, not some mixture of things of which one is oxalic acid.  it is usually sold as wood bleach.

[rookie2531]

If you want some good stuff, search eBay.

[sc-bee]

Barkeepers friend ingredients:

SECTION 3 - COMPOSITION / INFORMATION ON THE INGREDIENTS
INGREDIENT    % By Weight     CAS Reg. No.
FELDSPAR*         Confidential    68476-25-5
LINEAR SODIUM DODECYL BENZENE SULFONATE (DDBSA)
                         Confidential      69669-44-9
OXALIC ACID       7.5 - 9.5         144-62-7

[Dallasbeek]

Thanks.  Not a high percentage, but it does a good job at removing rust and cleaning stainless steel and such.  I had thought it might be a higher percentage of OA than that.