Acidity

[Brub58]

I get the HCl from the LHBS. I titrate against 10ml of the standard. If it takes 10 ml of NaOH I'm good to go.
http://www.anpros.com.au/laboratory-reagents/hydrochloric-acid-0-100m/

 

[ibglowin]

What does that mean! We use a wrap of parafilm on solutions we want to keep from evaporating and then we will store it in a chemical fridge or even in the freezer on some chems.

Would food saving the bottle after each use help (I'm serious, this is so frustrating)?

 

[ceeaton]

What does that mean! We use a wrap of parafilm on solutions we want to keep from evaporating and then we will store it in a chemical fridge or even in the freezer on some chems.

Sorry, a family shortcut term that means to put it in a food storage bag (the whole bottle) and vacuum seal it. At this point I keep it in the fridge in a zip lock bag with as much of the atmosphere removed from the bag as possible. I'm finding it starts loosing its viability within two months (the stuff I bought in late August is taking 10% more solution to reach my endpoint here at the end of October).