Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Measuring pH
Lion850
National Hazard
****




Posts: 517
Registered: 7-10-2019
Location: Australia
Member Is Offline

Mood: Great

[*] posted on 26-6-2020 at 13:56
Measuring pH


Hi members I want to start checking the pH of solutions more often. What do you use for checking pH? I have a test kit designed for pools but was wondering if there is something more accurate but still economical cost.
View user's profile View All Posts By User
morganbw
National Hazard
****




Posts: 561
Registered: 23-11-2014
Member Is Offline

Mood: No Mood

[*] posted on 26-6-2020 at 13:59


for convenience I use pH paper. I worked for 20+ years in an industrial setting where we used pH meters. I do think that for an amatuar that is over kill and the pH papers are sufficient on an amatuar basis. I think that normally it is just as accurate as well.
View user's profile View All Posts By User
Tsjerk
International Hazard
*****




Posts: 3032
Registered: 20-4-2005
Location: Netherlands
Member Is Offline

Mood: Mood

[*] posted on 26-6-2020 at 14:00


I use something like this.
View user's profile View All Posts By User
B(a)P
International Hazard
*****




Posts: 1139
Registered: 29-9-2019
Member Is Offline

Mood: Festive

[*] posted on 26-6-2020 at 15:36


I have an older version of this one that I use for anything where I need some accuracy. Otherwise I use pH paper.
https://intl.hannainst.com/products/testers/ph-orp/hi98128-p...
View user's profile View All Posts By User
Dr.Bob
International Hazard
*****




Posts: 2753
Registered: 26-1-2011
Location: USA - NC
Member Is Offline

Mood: Mildly disgruntled scientist

[*] posted on 26-6-2020 at 16:37


I iwas going to show an example of some pH paper test strips like I have, but with free shipping, I can't really beat this price below, $7.65 for 100 strips, with free shipping. But I can offer $7 for anyone already buying stuff, but it would cost me $3-4 to ship it, so too expensive to ship one, but no extra weight on an existing order.

https://www.walmart.com/ip/Strips-Tester-Aquariums-Hydroponi...
View user's profile View All Posts By User
draculic acid69
International Hazard
*****




Posts: 1371
Registered: 2-8-2018
Member Is Offline


[*] posted on 26-6-2020 at 17:55


I found pH test strips can't be used effectively with plant based extractions as they colour the strips brown/black and then the colour of the strip can't be seen through it so a meter is required for accuracy.if not doing plant extracts pH strips are fine.
View user's profile View All Posts By User
draculic acid69
International Hazard
*****




Posts: 1371
Registered: 2-8-2018
Member Is Offline


[*] posted on 26-6-2020 at 18:19


Litmus paper should be enough to do everything u want to measure and in combination with the pool strips will be fairly accurate.

https://www.wish.com/c/5a06a373d20e931250f28831?hide_login_m...

There very cheap

View user's profile View All Posts By User
Eddie Current
Hazard to Self
**




Posts: 78
Registered: 25-7-2018
Member Is Offline


[*] posted on 27-6-2020 at 14:41


Quote: Originally posted by B(a)P  
I have an older version of this one that I use for anything where I need some accuracy. Otherwise I use pH paper.
https://intl.hannainst.com/products/testers/ph-orp/hi98128-p...


How do these pen meters hold up in corrosive chemical solutions?
View user's profile View All Posts By User
B(a)P
International Hazard
*****




Posts: 1139
Registered: 29-9-2019
Member Is Offline

Mood: Festive

[*] posted on 27-6-2020 at 17:34


Quote: Originally posted by Eddie Current  


How do these pen meters hold up in corrosive chemical solutions?


I don't use mine on anything too corrosive, because I would imagine not well.
View user's profile View All Posts By User

  Go To Top