Re: pinhole chemical precipitate

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From: Burt Kessler (bcomet@pacbell.net)
Date: Sun Feb 06 2005 - 21:56:27 PST 

Message-Id: <01B8560A-78CD-11D9-87EA-000A95AFE37C@pacbell.net>
From: Burt Kessler <bcomet@pacbell.net>
Subject: Re: pinhole chemical precipitate
Date: Sun, 6 Feb 2005 21:56:27 -0800

On Feb 4, 2005, at 12:23 PM, Paul Doherty wrote:

> I'm looking for a chemical reaction (exchange reaction) in which two
> aqueous salts are mixed to create a precipitate.
>
> I want this to use simple safe household chemicals.
>
> So the first opne I found: epsom salt and sodium hydroxide (Draino) is
> out
> because the drano is too caustic.
>
> Got any ideas?
>
> What about calcium chloride and baking soda? One of the products is
> calcium carbonate, although some HCl is formed as well. CaCl2 is used
> to melt ice off sidewalks in places where that is a problem. It might
> be hard to find in a hardware store here, but easy any place it
> freezes often.

Burt Kessler

Intelligence is not how much you know,
it's what you do when you don't know.

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