Date: Wed, 26 Aug 2009 16:46:33 -0700
Reply-To: Laurence Doemeny <ldoemeny**At_Symbol_Here**COX.NET>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: Laurence Doemeny <ldoemeny**At_Symbol_Here**COX.NET>
Subject: Re: pH Indicator Question
Comments: To: William Lipton
In-Reply-To: <8bfbb3b80908261232m2b9195bm297bf2d2ae09bd24**At_Symbol_Here**>

Excuse me.  Here is a referenced source.  A simple Google of pH indicators should do the trick.






-----Original Message-----
From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**] On Behalf Of William Lipton
Sent: Wednesday, August 26, 2009 12:33 PM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: Re: [DCHAS-L] pH Indicator Question


You raise an interesting question.  How much can we rely on Wikipedia as a reference?  It is not peer reviewed.  I recommend confirming any information from a more reliable source.


Bill Lipton


On Wed, Aug 26, 2009 at 1:49 PM, Laurence Doemeny <ldoemeny**At_Symbol_Here**> wrote:

try this!!!

-----Original Message-----
From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**] On Behalf Of
Andrew Gross
Sent: Wednesday, August 26, 2009 7:09 AM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Subject: [DCHAS-L] pH Indicator Question

Hi All,

I'm in a bit of a pinch.  I think my pH meter is down in my lab and I
need to analyze some samples.

I need to titrate some phosphoric acid sample with sodium hydroxide
and I need a compatible indicator that will change at pH 9.  If anyone
knows off hand what that indicator is, please email me back and/or
call my cell phone at 516-633-3528.

Andrew Gross


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