synthetikal.com Forum Index


5% NaOH forgot how to figure that out
Page 1 of 1
Post new topic   Reply to topic    synthetikal.com Forum Index -> General Chemistry
Author Message
DjTime
Chemical Dj
Joined: 18 Feb 2005
Posts: 77
Location: NEVER!
1442.72 Points

Sun Mar 13, 2005 10:18 pm
Reply with quote

Im reffering to the Benzo Wacker for an MDMA synth it's been about a year or more since SWID's last reaction. Is it 25 or 75 grams per 500 ML SWIM thinks it's 25 grams per wash for a total of 75 for the three washes of NaOH? I know this sounds dumb but.... please bear with me.
Back to top
DjTime
Chemical Dj
Joined: 18 Feb 2005
Posts: 77
Location: NEVER!
1442.72 Points

Mon Mar 14, 2005 12:22 am
Reply with quote

nevermind i got it.
Back to top
methyl_ethyl
Riedel De Haen
Joined: 18 Feb 2005
Posts: 107
Location: Estonia
7200.76 Points

Mon Mar 14, 2005 3:04 am
Reply with quote

Instead of just posting that "you got it", perhaps you could make up for the wasted bandwith, by educating those that could not "get it". You were expecting an answer yet, do not offer the solution.

For example,

NaOH 5% w/v (final volume 1L)

50g NaOH (s) was weighed and added to ~800mL water and stirred, after complete dissolution, the solution was brought to volume (1L) with water.

Also keep in mind % solutions are fine for washes and the like, in fact even if you fucked this up royally, the NaOH wash was still probably proficient in doing it's job in your washing application.

regards,

methyl_ethyl
Back to top
DjTime
Chemical Dj
Joined: 18 Feb 2005
Posts: 77
Location: NEVER!
1442.72 Points

Mon Mar 14, 2005 11:06 am
Reply with quote

I remebered that to get 5% of the wash it was the very simple math i need to do. I needed to multiply .05 by 500 and that gave me 25, so i remebere that i used to make all my washes at once instead of three seperate washes. Thats where i was confused on the 75 or 25. It was a total of 75 grams of NaOH per 1.5 liters of DH20. So for anyone needing help on this it's 25g of NaOH per 500ml. Sorry for that "wasted bandwidth"
Back to top
Display posts from previous:   
Post new topic   Reply to topic    synthetikal.com Forum Index -> General Chemistry All times are GMT + 5.5 Hours
Page 1 of 1

 



Powered by phpBB 2.0.11 © 2001, 2002 phpBB Group

Igloo Theme Version 1.0 :: Created By: Andrew Charron