Hydrochloric acid - Revision history

Jakob Suckale: conversion

2011-06-23T13:14:17Z

conversion

←Older revision		Revision as of 13:14, 23 June 2011
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	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.
		+
		+	== Conversion % HCl to M HCl ==
		+	chemical/physical data
		+	* 37% w/w HCl<sub>aq</sub> has a density of 1.19 kg/L [http://orgchem.colorado.edu/reference.html][http://en.wikipedia.org/wiki/Hydrochloric_acid#Physical_properties]
		+	* molecular weight of HCl = 36.5 g/mol [http://orgchem.colorado.edu/reference.html][http://en.wikipedia.org/wiki/Hydrogen_chloride]
		+
		+
		+	% to molar conversion
		+	* % w/w HCl to w/v HCl: 37% HCl x 1.9 kg/L density = 0.44 kg/L HCl
		+	* w/v to mol/v: 0.44 kg/L / 36.5 g/mol = 12 mol/L
		+
		+
		+	Thus, fuming/concentrated HCl 37% is 12 molar (= M = mol/L).
		+
		+
		+	diluted HCl from concentrated HCl
		+	* 1M HCl: add 1mol/12M = 83 ml conc. HCl to 1L of water or 8.3ml to 100ml
		+	* 2M HCl: add 2mol/12M = 167 ml conc. HCl to 1L of water or 16.7ml to 100ml
		+	(other calculation start out with 37.5% and arrive at 82ml for 1M HCl [http://wiki.answers.com/Q/How_do_you_prepare_a_solution_of_1_M_HCl])

	== Safety ==		== Safety ==
	* Concentrated HCl is a very strong acid that will burn your skin instantly upon contact! Wear gloves, goggles, and lab coat.		* 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.		* 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.
-	* HCl<sub>aq</sub> above 25% w/v ~ 8M is corrosive [[Image:Corrosive.png\|40px]] and HCl<sub>aq</sub> above 10% ~ 3M is irritant [[Image:Irritant.png\|40px]]	+	* HCl<sub>aq</sub> above 25% w/w ~ 8M is corrosive [[Image:Corrosive.png\|40px]] and HCl<sub>aq</sub> above 10% ~ 3M is irritant [[Image:Irritant.png\|40px]]

	== See also ==		== See also ==

Jakob Suckale at 12:54, 23 June 2011

2011-06-23T12:54:02Z

←Older revision		Revision as of 12:54, 23 June 2011
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	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 ==
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	== 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]]

Jakob Suckale: chemical warning signs

2011-06-23T12:47:24Z

chemical warning signs

←Older revision		Revision as of 12:47, 23 June 2011
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	* Concentrated HCl is a very strong acid that will burn your skin instantly upon contact! Wear gloves, goggles, and lab coat.		* 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.		* 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.
-	* HCl<sub>aq</sub> above 25% / 8M is corrosive	+	* HCl<sub>aq</sub> above 25% w/v ~ 8M is corrosive [[Image:Corrosive.png\|40px]] and HCl<sub>aq</sub> above 10% ~ 3M is irritant [[Image:Irritant.png\|40px]]
-	* HCl<sub>aq</sub> above 10% / 3M is irritant	+

	== See also ==		== See also ==

Jakob Suckale: safety

2011-06-23T12:43:01Z

safety

←Older revision		Revision as of 12:43, 23 June 2011
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-	~~== See also ==~~

		+	== 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.
		+	* HCl<sub>aq</sub> above 25% / 8M is corrosive
		+	* HCl<sub>aq</sub> above 10% / 3M is irritant
		+
		+	== See also ==
	* [http://en.wikipedia.org/wiki/Hydrochloric_acid Hydrochloric acid (Wikipedia)]		* [http://en.wikipedia.org/wiki/Hydrochloric_acid Hydrochloric acid (Wikipedia)]
	* [[1 normal acid or base (1N)]]		* [[1 normal acid or base (1N)]]

Jakob Suckale at 11:31, 23 June 2011

2011-06-23T11:31:41Z

←Older revision		Revision as of 11:31, 23 June 2011
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-	Hydrochloric acid (HCl) 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% 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).	+	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.

Jakob Suckale: HCl moved to Hydrochloric acid over redirect: correct term; "HCl" common lab shorthand but should be HCl(aq)

2011-06-23T11:26:48Z

HCl moved to Hydrochloric acid over redirect: correct term; "HCl" common lab shorthand but should be HCl(aq)

←Older revision

Revision as of 11:26, 23 June 2011

Jakob Suckale: categories

2011-06-23T11:23:52Z

Jakob Suckale: see also

2011-06-23T11:23:20Z

Jakob Suckale: introduction

2011-06-23T11:18:02Z

introduction

←Older revision		Revision as of 11:18, 23 June 2011
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-	Hydrochloric acid (HCl) is a common acid both ~~naturally~~ in the body and in the lab.	+	Hydrochloric acid (HCl) 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% 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).

Jakob Suckale: * page created *

2011-06-23T11:16:49Z

*** page created ***

New page

Hydrochloric acid (HCl) is a common acid both naturally in the body and in the lab.

←Older revision		Revision as of 11:23, 23 June 2011
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	* [[Griffin:Antigen_Retrieval_Technique#50_mM_glycine-HCl_buffer.2C_pH_3.5.2C_with_0.01.25_.28w.2Fv.29_EDTA\|Gly-HCl antigen retrieval buffer]]		* [[Griffin:Antigen_Retrieval_Technique#50_mM_glycine-HCl_buffer.2C_pH_3.5.2C_with_0.01.25_.28w.2Fv.29_EDTA\|Gly-HCl antigen retrieval buffer]]
	* [[Knight:pH meter/Measurement\|pH meter calibration w HCl & NaOH]]		* [[Knight:pH meter/Measurement\|pH meter calibration w HCl & NaOH]]
		+
		+
		+	[[Category:Material]] [[Category:Acids and bases]]