Hi everyone,
does anyone know how to label Phenolphthalein Indicator, made as directed in 'The Laboratory' :
1g phenolphthalein
300 mL ethanol
200 mL dist water
Also stuck on how to label saturated solutions.
thanks for any ideas.
LABEL FOR PHENOLPHTHALEIN INDICATOR
- Labbie
- Posts: 3243
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: LABEL FOR PHENOLPHTHALEIN INDICATOR
Via chemwatch, it has a flammable diamond as it has Ethanol in it.
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
- Labbie
- Posts: 3243
- Joined: 28 Nov 2006, 10:00
- Job Title: Retired
- Suburb: At Home
- State/Location: NSW
Re: LABEL FOR PHENOLPHTHALEIN INDICATOR
This may help
You do not have the required permissions to view the files attached to this post.
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Re: LABEL FOR PHENOLPHTHALEIN INDICATOR
thanks so much Labbie.
I've been using Risk Assess for labels (it's so easy and quick), but as yet, it doesn't do mixtures, so I got a bit stumped.
I should have gone straight to ChemWatch myself.
Appreciate your attachment... saves me from locating it.
Kmd
I've been using Risk Assess for labels (it's so easy and quick), but as yet, it doesn't do mixtures, so I got a bit stumped.
I should have gone straight to ChemWatch myself.
Appreciate your attachment... saves me from locating it.
Kmd
- cherrycat22
- Posts: 7
- Joined: 31 Mar 2014, 07:42
- School: Model Farms High School
- Suburb: Baulkham Hills
- State/Location: NSW
PHENOLPHTHALEIN INDICATOR
Is there a Stock Standard Recipe for Phenolphthalein Indicator Solution for use in Schools? I have never made it before and my Methods folder has 2 different recipes and the above recipe (3.) is different again
1.1 g in 500ml dist water and 500ml Ethanol (1 litre)
2. 0.2g in 1 litre Methylated spirits
3. 2g in 600ml ethanol and 400ml distilled water
1.1 g in 500ml dist water and 500ml Ethanol (1 litre)
2. 0.2g in 1 litre Methylated spirits
3. 2g in 600ml ethanol and 400ml distilled water
-
- Posts: 1496
- Joined: 12 Mar 2013, 08:10
- Job Title: Labbie
- School: Wollondilly Anglican College
- Suburb: Tahmoor
- State/Location: NSW
Re: LABEL FOR PHENOLPHTHALEIN INDICATOR
I just use the one from the Laboratory, which is listed above.
Incidentally, Riskassess has upgraded their labelling and you can now create your own labels.
Incidentally, Riskassess has upgraded their labelling and you can now create your own labels.
Re: LABEL FOR PHENOLPHTHALEIN INDICATOR
They have a label for the indicator in the standard labels in Risk Assess
If you type in Phenolphthalein you will get a whole heap of choices including:
Phenolphthalein >0.1% wt/wt in ethanol 24-70% wt/wt
If you type in Phenolphthalein you will get a whole heap of choices including:
Phenolphthalein >0.1% wt/wt in ethanol 24-70% wt/wt
Re: LABEL FOR PHENOLPHTHALEIN INDICATOR
You do not have the required permissions to view the files attached to this post.
Re: PHENOLPHTHALEIN INDICATOR
I have made all 3 but the third one is the best and has a good shelf life.cherrycat22 wrote:Is there a Stock Standard Recipe for Phenolphthalein Indicator Solution for use in Schools? I have never made it before and my Methods folder has 2 different recipes and the above recipe (3.) is different again
1.1 g in 500ml dist water and 500ml Ethanol (1 litre)
2. 0.2g in 1 litre Methylated spirits
3. 2g in 600ml ethanol and 400ml distilled water
-
- Posts: 38
- Joined: 09 Dec 2016, 13:11
- Job Title: lab assistant
- School: SJBC
- Suburb: Engadine
- State/Location: NSW
Re: LABEL FOR PHENOLPHTHALEIN INDICATOR
Our method is:
Dissolve 2g phenolphthalein in 600ml ethanol. Make up to 1L with distilled water. Filter
Dissolve 2g phenolphthalein in 600ml ethanol. Make up to 1L with distilled water. Filter