Kevin O'Brien (kob@paradise.net.nz)
Wed, 03 Mar 1999 20:54:32 +1300
>
>My formula calls for 12ml Sulfuric Acid (concentrated) in 1 liter of water.
Am I correct that this is a 1.2% solution?
Yes.
Alternatively: 4tbsp/litre
The exact measures are not critical for the bleach in this usage. It may
affect the time fractionally. It is common to make up these bleaches by
using stock solutions; one for the acid the other for the dichromate or
permanganate.
Kevin O'Brien
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