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Acids

Migrated topic.

VillainInc

Rising Star
I was just reading about citric acid and acetic acid a little, and I was just wondering. Would it be safe to assume citric acid would be a better idea for an a/b extraction due to its higher boiling point (177C compared to 118.1C according to Wikipedia)? I'm a little new to this, but I assume if the acid doesn't boil off, the pH should remain more constant.

Oh yeah, and vinegar smells bad.

Like I said, I'm new to this, so go easy on my if I'm wrong. :)
 
benzyme said:
Spock's Brain said:
benzyme - would ascorbic acid - vitamin C - be suitable and favorable for extraction methods? One could grind up some vitamin C with a mortar and pestle and create an acid solution?

yes, as it is water soluble. it greatly helps to heat the water too (not necessarily boil though), solubility increases exponentially with temperature


Hey Hey Benz,

First off, I'm no chemist. But I did find this:


or a bit higher credentials:

Or best yet:
http://www.scribd.com/doc/30121552/Hydrogen-Chloride (pp 813 Table 5)

To me it says HCl solubility in water decreases with and increase in temperature.

Would this be the same for DMT HCl?

In other words, Should cold water be used when HCl acid baths are done?
 
wearepeople said:
To me it says HCl solubility in water decreases with and increase in temperature.[/color]

Would this be the same for DMT HCl?

In other words, Should cold water be used when HCl acid baths are done?
The solubility of HCl decreases with hotter temoeratures because HCl is a gas, not a solid, dissolved in water. As it goes with gasses, they are more volatile in hot temperatures and consequently they have a higher propensity to escape off of a solution. The exact same thing happens with carbonated drinks, where the solubility of the gaseous CO2 decreases with temperature.

DMT HCl is a solid and not a volatile gas, so its solubility increases with increased temperature.
 
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