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

Printable Version  
Author: Subject: easiest & most friendly buffer to play with, C6H8O7 or H3PO4 ?
edouard
Harmless
*




Posts: 14
Registered: 5-12-2008
Member Is Offline

Mood: No Mood

[*] posted on 13-12-2008 at 23:12
easiest & most friendly buffer to play with, C6H8O7 or H3PO4 ?


hi,

i am messing with Na2CO3 water to shave and i am irritating my face for a few days now.

so i i consider buffering my causitc water.

i think that C6H8O7 or H3PO4 should work well without producing unfriendly by-products.

what should be the easiest to work with?

thanks
View user's profile View All Posts By User
12AX7
Post Harlot
*****




Posts: 4803
Registered: 8-3-2005
Location: oscillating
Member Is Offline

Mood: informative

[*] posted on 14-12-2008 at 06:25


What is C6H8O7 referring to?

Tim




Seven Transistor Labs LLC http://seventransistorlabs.com/
Electronic Design, from Concept to Layout.
Need engineering assistance? Drop me a message!
View user's profile Visit user's homepage View All Posts By User This user has MSN Messenger
edouard
Harmless
*




Posts: 14
Registered: 5-12-2008
Member Is Offline

Mood: No Mood

[*] posted on 14-12-2008 at 06:31


sorry

citric acid
View user's profile View All Posts By User
unionised
International Hazard
*****




Posts: 5126
Registered: 1-11-2003
Location: UK
Member Is Offline

Mood: No Mood

[*] posted on 14-12-2008 at 07:32


If you are irritating your face I suspect you are using too much Na2CO3.
View user's profile View All Posts By User
edouard
Harmless
*




Posts: 14
Registered: 5-12-2008
Member Is Offline

Mood: No Mood

[*] posted on 14-12-2008 at 07:44


Quote:
Originally posted by unionised
If you are irritating your face I suspect you are using too much Na2CO3.


yes i do as i have a hard time finding the ideal concentration.

therefore i plane to along with this while buffering it.

what for a buffer would you suggest me to use?
View user's profile View All Posts By User
woelen
Super Administrator
*********




Posts: 8012
Registered: 20-8-2005
Location: Netherlands
Member Is Offline

Mood: interested

[*] posted on 14-12-2008 at 12:05


I think that both should be without much problems. Acetic acid could be another option. Then you can use simple white vinegar.



The art of wondering makes life worth living...
Want to wonder? Look at https://woelen.homescience.net
View user's profile Visit user's homepage View All Posts By User
bfesser
Resident Wikipedian
*****




Posts: 2114
Registered: 29-1-2008
Member Is Offline

Mood: No Mood

[*] posted on 14-12-2008 at 18:39


Use a carbonate-bicarbonate buffer system? :P You can't store it for long (aqueous), but if freshly prepared, it works. You might be able to store a mix of the carbonate and bicarbonate dry, then just add water to a little immediately before use. Keep in a tightly closed jar.

NaHCO<sub>3</sub> + Na<sub>2</sub>CO<sub>3</sub>
View user's profile View All Posts By User
edouard
Harmless
*




Posts: 14
Registered: 5-12-2008
Member Is Offline

Mood: No Mood

[*] posted on 14-12-2008 at 19:35


Quote:
Originally posted by bfesser

NaHCO<sub>3</sub> + Na<sub>2</sub>CO<sub>3</sub>


considering i will have to heat my water at around 80 deg Cel., won't NaHCO turn into Na2CO3 immediately?
View user's profile View All Posts By User
not_important
International Hazard
*****




Posts: 3873
Registered: 21-7-2006
Member Is Offline

Mood: No Mood

[*] posted on 14-12-2008 at 20:20


Use bicarb alone, boil the water for several minutes to drive off excess CO2, then let cool slowly to the desired temperature, which allows calcium and magnesium carbonates to settle.

Or get a water softening unit.
View user's profile View All Posts By User
bfesser
Resident Wikipedian
*****




Posts: 2114
Registered: 29-1-2008
Member Is Offline

Mood: No Mood

[*] posted on 15-12-2008 at 06:05


Seriously, though. Wouldn't these questions be better suited to a shaving forum?
View user's profile View All Posts By User
Ramiel
Vicious like a ferret
***




Posts: 484
Registered: 19-8-2002
Location: Room at the Back, Australia
Member Is Offline

Mood: Semi-demented

[*] posted on 15-12-2008 at 20:45


May I recommend a shaving stick and avoiding multi-blade razors? I have a very vigorous beard, and shaving foam just doesn't cut it.

Not to mention the economy of paying $3 for enough shave stick to last for months!

also; <a href="http://www.lulu.com/content/769757">Gourmet Shaving?!</a>




Caveat Orator
View user's profile View All Posts By User This user has MSN Messenger
edouard
Harmless
*




Posts: 14
Registered: 5-12-2008
Member Is Offline

Mood: No Mood

[*] posted on 15-12-2008 at 22:49


Quote:
Originally posted by Ramiel
May I recommend a shaving stick and avoiding multi-blade razors? I have a very vigorous beard, and shaving foam just doesn't cut it.

Not to mention the economy of paying $3 for enough shave stick to last for months!

also; <a href="http://www.lulu.com/content/769757">Gourmet Shaving?!</a>


thanks

but i am actually wetshaving with a DE razor

and i cannot get the protecive & glidding lather, my water being hard, i triy to work around it
View user's profile View All Posts By User

  Go To Top