[MissPhosgene]

 It is not a useless comment because you apparently have no clue about what you are working with. Based on that, a friendly reminder about safety protocols is in order.

[dudeman]

It is not a useless comment because you apparently have no clue about what you are working with. Based on that, a friendly reminder about safety protocols is in order.

ok

[MissPhosgene]

yes, so be safe. Don't breathe it, get it in your eyes or on your skin. You don't need a high gaseous concentration to cause irritation of your respiratory tract and membranes. Wear gloves and goggles and run away if it's starting to smell... assuming you aren't doing this in a hood which seems very dangerous in light of the way the conversation went. If you are going to use HCl at home, nobody can stop you but do it "properly" and with knowledge. It could go bad very fast.

[dudeman]

yes, so be safe. Don't breathe it, get it in your eyes or on your skin. You don't need a high gaseous concentration to cause irritation of your respiratory tract and membranes. Wear gloves and goggles and run away if it's starting to smell... assuming you aren't doing this in a hood which seems very dangerous in light of the way the conversation went. If you are going to use HCl at home, nobody can stop you but do it "properly" and with knowledge. It could go bad very fast.

Thank you.

I found some information! here it is.

An example of a negative azeotrope is hydrochloric acid at a concentration of 20.2% and 79.8% water (by weight). Hydrogen chloride boils at −84°C and water at 100°C, but the azeotrope boils at 110°C, which is higher than either of its constituents. The maximum temperature at which any hydrochloric acid solution can boil is 110°C. In general, a negative azeotrope boils at a higher temperature than any other ratio of its constituents. Negative azeotropes are also called maximum boiling mixtures or pressure minimum azeotrope.

If two solvents can form a negative azeotrope, then distillation of any mixture of those constituents will result in the residue being closer in composition to the azeotrope than the original mixture. For example, if a hydrochloric acid solution contains less than 20.2% hydrogen chloride, boiling the mixture will leave behind a solution that is richer in hydrogen chloride than the original. If the solution initially contains more than 20.2% hydrogen chloride, then boiling will leave behind a solution that is poorer in hydrogen chloride than the original. Boiling of any hydrochloric acid solution long enough will cause the solution left behind to approach the azeotropic ratio.

This pretty much answers my question...

[nj_bartel]

well done