Hi,
Is phenolphtalein the same as phenol red ?
Met dank en vriendelijke groet,
Pieter Koole
- Original Message -
From: bob allen [EMAIL PROTECTED]
To: Biofuel@sustainablelists.org
Sent: Saturday, June 18, 2005 3:52 PM
Subject: Re: [Biofuel] Fw: Electronic PH meter
Howdy Kieth
your own biodiesel - page 2
Keith
Met dank en vriendelijke groet,
Pieter Koole
- Original Message -
From: bob allen bob at ozarker.org
To: Biofuel at sustainablelists.org
Sent: Saturday, June 18, 2005 3:52 PM
Subject: Re: [Biofuel] Fw: Electronic PH meter
Howdy Kieth and Willem
Thanks Keith.
Pieter Koole
- Original Message -
From: Keith Addison [EMAIL PROTECTED]
To: Biofuel@sustainablelists.org
Sent: Sunday, June 19, 2005 2:05 PM
Subject: [Biofuel] Fw: Electronic PH meter
Hello Pieter
Hi,
Is phenolphtalein the same as phenol red ?
No.
You've already
Howdy Kieth and Willem, the issue of the use of a pH meter as opposed to other methods for
determination of the end point of a titration comes up from time to time. It seems that many
believe one really needs a pH meter. I think not and here is why. Although a pH meter may be more
accurate
Howdy Bob
Howdy Kieth and Willem, the issue of the use of a pH meter as
opposed to other methods for determination of the end point of a
titration comes up from time to time. It seems that many believe
one really needs a pH meter. I think not and here is why. Although
a pH meter may be
I haven't done much with biodiesel yet, but I can shed some light on pH meters vs. phenolphthalien(PHTH) from a chemist's perspective.
As acids become weaker, it is important to become more careful in the selection of a chemical indicator (such as PHTH), as the change in pH is much slower than it
on 6/18/05 1:08 PM, the skapegoat at [EMAIL PROTECTED] wrote:
As acids become weaker, it is important to become more careful in the
selection of a chemical indicator (such as PHTH), as the change in pH
is much slower than it is for a strong acid titration. PHTH is the most
commonly used
Hi all,
I am slowly getting the parts together to construct a small biodiesel
set-up
(approx. 30 litres).
When I told a friend recently avout my plans he gave me an electronic PH
meter, pen type. Accuracy is 1 decimal. He said this would replace the
titration, but could give me no more info.
Hi Willem
Hi all,
I am slowly getting the parts together to construct a small biodiesel set-up
(approx. 30 litres).
When I told a friend recently avout my plans he gave me an electronic PH
meter, pen type. Accuracy is 1 decimal. He said this would replace the
titration, but could give me no
