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Chemistry refresher course

Chemistry refresher course

2002-12-05 by K2 Chittin

Can anyone please enlighten me?

Add "ammonia to water" or "water to ammonia"?  I remember from school 
days that if you get it wrong ... :)

Thanks

K2

Re: Chemistry refresher course

2002-12-05 by slightlyoutoffocus

I don't recall any rules for ammonia, but there is one for acids.  It 
is, simply, AAA...always add acid.  I would guess the same would 
apply for ammonia.

-Kiefer


--- In DigitalBlackandWhiteThePrint@y..., "K2 Chittin" <k2lists@h...> 
wrote:
> Can anyone please enlighten me?
> 
> Add "ammonia to water" or "water to ammonia"?  I remember from 
school 
Show quoted textHide quoted text
> days that if you get it wrong ... :)
> 
> Thanks
> 
> K2

Re: Chemistry refresher course

2002-12-05 by Jeff Randall

The houshold ammonia is already a dilute solution of ammonia and 
water so no big deal.  I however add the ammonia solution to the 
water.  1 part household ammonia to 9 parts water.  

Jeff Randall

--- In DigitalBlackandWhiteThePrint@y..., "K2 Chittin" <k2lists@h...> 
wrote:
> Can anyone please enlighten me?
> 
> Add "ammonia to water" or "water to ammonia"?  I remember from 
school 
Show quoted textHide quoted text
> days that if you get it wrong ... :)
> 
> Thanks
> 
> K2

Re: Chemistry refresher course

2002-12-05 by K2 Chittin

--- In DigitalBlackandWhiteThePrint@y..., "Jeff Randall" 
<jrandall@c...> wrote:
> The houshold ammonia is already a dilute solution of ammonia and 
> water so no big deal.  I however add the ammonia solution to the 
> water.  1 part household ammonia to 9 parts water.  

Thanks for that enlightening info Jeff.  I thought it was a case of 
1:9 pure ammonia (you know, the highly dangerous stuff with all those 
warnings on it) to water, not household ammonia.  Now I won't have to 
go outside to mix. :)

K2

Re: Chemistry refresher course

2002-12-05 by Jeff Randall

Use the regular household ammonia *NOT* the sudsy kind.

You must have spent too many years in a darkroom breathing hypo to 
even think about mixing 100% ammonia :)

Jeff Randall

--- In DigitalBlackandWhiteThePrint@y..., "K2 Chittin" <k2lists@h...> 
wrote:
> --- In DigitalBlackandWhiteThePrint@y..., "Jeff Randall" 
> <jrandall@c...> wrote:
> > The houshold ammonia is already a dilute solution of ammonia and 
> > water so no big deal.  I however add the ammonia solution to the 
> > water.  1 part household ammonia to 9 parts water.  
> 
> Thanks for that enlightening info Jeff.  I thought it was a case of 
> 1:9 pure ammonia (you know, the highly dangerous stuff with all 
those 
> warnings on it) to water, not household ammonia.  Now I won't have 
to 
Show quoted textHide quoted text
> go outside to mix. :)
> 
> K2

Re: [Digital BW] Re: Chemistry refresher course

2002-12-06 by David Dyer-Bennet

"slightlyoutoffocus" <by_design@...> writes:

> I don't recall any rules for ammonia, but there is one for acids.  It 
> is, simply, AAA...always add acid.  I would guess the same would 
> apply for ammonia.

Sometimes considerable heat can be generated.  This can cause a dolop
of *stuff* to fly around the room.  Since you combine dangerous things
slowly and carefully (you do, right?), there's a lot more of the stuff
being added *to* available than there is of the stuff being added.  So
it's safer to add the relatively more dangerous stuff to the
relatively less dangerous stuff. 

Except, no doubt, in various special cases (me no chemist).
-- 
David Dyer-Bennet, dd-b@...  /  http://www.dd-b.net/dd-b/
 John Dyer-Bennet 1915-2002 Memorial Site http://john.dyer-bennet.net
	   Dragaera mailing lists, see http://dragaera.info

Re: Chemistry refresher course

2002-12-07 by nickaltenbernd <altenb@mit.edu>

The one I learned in high school: "There he lies, cold and placid; he
added water to the acid."

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "K2 Chittin"
<k2lists@h...> wrote:
Show quoted textHide quoted text
> Can anyone please enlighten me?
> 
> Add "ammonia to water" or "water to ammonia"?  I remember from school 
> days that if you get it wrong ... :)
> 
> Thanks
> 
> K2

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