Hydrochloric acid: Difference between revisions
From OpenWetWare
Jump to navigationJump to search
(chemical warning signs) |
No edit summary |
||
| Line 1: | Line 1: | ||
Hydrochloric acid, abbreviation HCl<sub>(aq)</sub>, is a common acid both in the body and in the lab. It is, for example, a major component of [http://en.wikipedia.org/wiki/Gastric_acid gastric acid] (pH 1-2, 0.5% w/v HCl). In experiments, it is used among other things to set the pH in buffers (e.g. [[Tris]]) and to reveal antigens (e.g. BrdU). Chemically speaking, it is a solution of the gas hydrogen chloride = HCl<sub>(g)</sub> in water. | Hydrochloric acid, abbreviation HCl<sub>(aq)</sub>, is a common acid both in the body and in the lab. It is, for example, a major component of [http://en.wikipedia.org/wiki/Gastric_acid gastric acid] (pH 1-2, 0.5% w/v HCl). In experiments, it is used among other things to set the pH in buffers (e.g. [[Tris]]) and to reveal antigens (e.g. BrdU). Chemically speaking, it is a solution of the gas hydrogen chloride = HCl<sub>(g)</sub> in water. | ||
== Safety == | == Safety == | ||
| Line 10: | Line 8: | ||
== See also == | == See also == | ||
* [http://en.wikipedia.org/wiki/Hydrochloric_acid Hydrochloric acid (Wikipedia)] | * [http://en.wikipedia.org/wiki/Hydrochloric_acid Hydrochloric acid (Wikipedia)] | ||
* [http://pubchem.ncbi.nlm.nih.gov/summary/summary.cgi?sid=53790937 PubChem: HCl] | |||
* [[1 normal acid or base (1N)]] | * [[1 normal acid or base (1N)]] | ||
* [[Acid concentration chart]] | * [[Acid concentration chart]] | ||
Revision as of 05:54, 23 June 2011
Hydrochloric acid, abbreviation HCl(aq), is a common acid both in the body and in the lab. It is, for example, a major component of gastric acid (pH 1-2, 0.5% w/v HCl). In experiments, it is used among other things to set the pH in buffers (e.g. Tris) and to reveal antigens (e.g. BrdU). Chemically speaking, it is a solution of the gas hydrogen chloride = HCl(g) in water.
Safety
- Concentrated HCl is a very strong acid that will burn your skin instantly upon contact! Wear gloves, goggles, and lab coat.
- Do not make the mistake of adding water to concentrated HCl. It has to acid into water. If you do it the wrong way the first drops of water mixing with the concentrated acid will heat up, evaporate, and can send drops of acid flying out of the container onto you.
- HClaq above 25% w/v ~ 8M is corrosive
and HClaq above 10% ~ 3M is irritant 
