Date: Wed, 26 Aug 2009 15:32:59 -0400
Reply-To: William Lipton <doctorbill34**At_Symbol_Here**GMAIL.COM>
Sender: DCHAS-L Discussion List <DCHAS-L**At_Symbol_Here**LIST.UVM.EDU>
From: William Lipton <doctorbill34**At_Symbol_Here**GMAIL.COM>
Subject: Re: pH Indicator Question
Comments: To: Laurence Doemeny
In-Reply-To: <B4A960EE1EDB4026BCEB9461E9FFE581**At_Symbol_Here**9929doemeny>

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 It is not peer reviewed.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 wrote: > http://en.wikipedia.org/wiki/PH_indicator > > try this!!! > > -----Original Message----- > From: DCHAS-L Discussion List [mailto:DCHAS-L**At_Symbol_Here**list.uvm.edu] 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. > > Thanks, > Andrew Gross >

You raise an interesting question.=A0 How much can we rely on Wikipedi a as a reference?=A0 It is not peer reviewed.=A0 I recommend confirming any information from a more reliable source.
=A0
Bill Lipton


=A0
On Wed, Aug 26, 2009 at 1:49 PM, Laurence Doemen y <ldoemeny**At_Symbol_Here**cox.ne t> wrote:
http://en.wikipedia.org/wiki/PH_ind icator

try this!!!


-----Original Message-----
From: DCHAS-L Discussio n List [mailto:DCHAS-L**At_Symbol_Here**list.uvm.edu ] On Behalf Of
Andrew Gross
Sent: Wednesday, August 26, 2009 7:09 AM
To: DCHAS-L**At_Symbol_Here**LIST.UVM.EDU
Sub ject: [DCHAS-L] pH Indicator Question

Hi All,

I'm in a bi t of a pinch. =A0I think my pH meter is down in my lab and I
need to ana lyze 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. =A0If anyone
knows off hand what that indicator is, please email me back and/or
call my cell phone at 516-633-3528.

Thanks,
Andrew Gross


Previous post   |  Top of Page   |   Next post



The content of this page reflects the personal opinion(s) of the author(s) only, not the American Chemical Society, ILPI, Safety Emporium, or any other party. Use of any information on this page is at the reader's own risk. Unauthorized reproduction of these materials is prohibited. Send questions/comments about the archive to secretary@dchas.org.
The maintenance and hosting of the DCHAS-L archive is provided through the generous support of Safety Emporium.