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  It is not peer reviewed.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a as a reference?=A0 It is not peer reviewed.=A0 I recommend confirming any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

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