100 liters at 25 mg/liter = 2500 mg or 2.5 grams
2.5 grams needed divided by 1.031 grams/ml of formaldehyde = 2.43 ml
I know Adrian will be careful with formaldehyde but for the rest of you that
may be unaware this is really dangerous stuff. You can become incredibly
allergic to it and like other chemicals can potentially cause you to pick up
other allergies to unrelated proteins. It is also a known cancer causing
agent. In the chemical industry most reputable companies require their workers
to go to training classes on the proper handling and disposing of amounts even
much smaller than the amount that Adrian is planning to use!
Gary Lange
----------
> From: Adrian Tappin <atappin at ecn.net.au>
> To: rainbowfish at pcug.org.au
> Subject: [RML] Chemical dose
> Date: Saturday, November 14, 1998 9:51 PM
>
> I'm trying to calculate the dose rate of formaldehyde (1031 g/l) for
> treating 100 litres of water at a delivered rate of 25 ppm.
>
> I came up 2.4 mil per 100 litres (approx).
>
> Would someone like to check if I have calculated it correctly
>
> Thanks,
> Adrian.
>
> Adrian R. Tappin
> "Home of the Rainbowfish"
> http://www.ecn.net.au/~atappin/home.htm