[TheForge] acid

[Daniel Kretchmar]

Thanks everyone!

Danr
----- Original Message ----- 
From: "Dann" <dann at wctatel.net>
To: "Sponsored by ABANA" <theforge at mailman.qth.net>
Sent: Sunday, May 13, 2007 12:39 PM
Subject: Re: [TheForge] acid


>
> Sounds to me like you struck gold in the chem lab.   These are just a few 
> gallon jugs not 55 gallon drums so no environmental group should get 
> excited. These are concentrated acids that would commonly be diluted 
> before use.  When doing any dilution   the rule is add the acid to the 
> base.. For example water is more basic than the acid.. so you would have 
> your measured volume of water and add the acid to it to reach the desired 
> concentration.   My chem teacher had a rhyme, "Do it like you otter.. add 
> the acid to the water, may your rest be long and placid if you add the 
> water to the acid!"
>
> What Bruce  is explaining, is how to safely do the opposite thing, 
> because, adding   lye to water is actually the reverse of that rhyme... as 
> in this instance the water is relatively an  "acid" compared to the lye... 
> so he was describing that you add it in very small quantities with a lot 
> of stirring to avoid  a very hot chemical "boiling" reaction.
>
> I was reading up on how to make your own bio-diesel fuel from used 
> restaurant  cooking grease. Each batch of 40 gallons required about 6 
> ounces of NaOH  to precipitate the glycerin out of the fuel.
>
> Nitric acid  is really cool stuff.  A little bit of it will make your skin 
> very yellow, ( ask me how I know ..)
> it will also clean the calcium deposits off your aquarium.   It is one of 
> the most basic acids used in quite a number of manufacturing processes. 
> It is  also a  primary starting point to make gun cotton/  nitro-cellulose 
> ( and a lot of other compounds that can go boom) .
>
> Dann
>
> At 09:56 AM 5/13/2007, you wrote:
>>That sentence was supposed to read:
>>
>>When diluting lye, add lye to water slowly with rapid
>>mixing to avoid both boiling of the solution and
>>setting up the lye crystals like a lump of cement.
>>
>>Gotta slap this little laptop around to get it to
>>heed...
>>
>>Bruce
>>
>>
>>
>>
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