Re: Rocks

[Mike & Diane Wise <apistowise@fgn.net>]

Bill,

This is a concentrated form of HCl, 37% by volume.
This is extremely caustic. It dissolves holes in
most clothing, corrodes most metal surfaces, & the
fumes will damage your respiratory system. This
acid should be kept out of the hands of children
and people too stupid to handle it properly. I
store mine in a locked wooden cabinet, sitting on
a piece of slate. To use it for testing dilute it
1 part acid to 7 parts water. ALWAYS add acid to
water. Do it the other way & it may vaporize the
water and splatter acid. I have also used it in a
concentrated form to lower the pH in my soft
water. About 5 ml of concentrated acid will drop
the pH of 20 gallons (75 liters) of my tap water
from 7.4 to 5.0 instantly. Obviously I mix in in
vats, not my aquaria.

Mike Wise

William Vannerson wrote:

>  >>>Muriatic acid can be found at hardware
> stores. This is an industrial grade of
> hydrochloric acid.I haven't worked with muriatic
> acid, but I recall hearing that it can be nasty
> stuff to work with and care should be exercised
> (i.e., gloves, proper ventilation, etc.)

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