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30721

Sigma-Aldrich

Hydrochloric acid

≥37%, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., fuming, APHA: ≤10

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About This Item

Empirical Formula (Hill Notation):
HCl
CAS Number:
Molecular Weight:
36.46
Beilstein:
1098214
EC Number:
MDL number:
UNSPSC Code:
12352301
PubChem Substance ID:
NACRES:
NA.21

product name

Hydrochloric acid, puriss. p.a., ACS reagent, reag. ISO, reag. Ph. Eur., fuming, ≥37%, APHA: ≤10

grade

ACS reagent
puriss. p.a.

Quality Level

Agency

USP/NF
reag. ISO
reag. Ph. Eur.

vapor density

1.3 (vs air)

vapor pressure

3.23 psi ( 21.1 °C)
7.93 psi ( 37.7 °C)

Assay

≥37%

form

liquid

impurities

≤0.00005% free chlorine (Cl)
≤0.0001% ammonium (NH4)
≤0.005% non-volatile matter

ign. residue

≤0.0005% (as SO4)

color

APHA: ≤10

bp

>100 °C (lit.)

density

1.070 g/cm3 at 20 °C (lit.)

anion traces

bromide (Br-): ≤50 mg/kg
phosphate (PO43-): ≤0.5 mg/kg
sulfate (SO42-): ≤1 mg/kg
sulfite (SO32-): ≤1 mg/kg

cation traces

Al: ≤0.05 mg/kg
As: ≤0.01 mg/kg
Ba: ≤0.02 mg/kg
Be: ≤0.02 mg/kg
Bi: ≤0.1 mg/kg
Ca: ≤0.5 mg/kg
Cd: ≤0.01 mg/kg
Co: ≤0.01 mg/kg
Cr: ≤0.02 mg/kg
Cu: ≤0.02 mg/kg
Fe: ≤0.2 mg/kg
Ge: ≤0.05 mg/kg
K: ≤0.1 mg/kg
Li: ≤0.01 mg/kg
Mg: ≤0.1 mg/kg
Mn: ≤0.01 mg/kg
Mo: ≤0.02 mg/kg
Na: ≤0.5 mg/kg
Ni: ≤0.02 mg/kg
Pb: ≤0.02 mg/kg
Sr: ≤0.01 mg/kg
Ti: ≤0.1 mg/kg
Tl: ≤0.05 mg/kg
V: ≤0.01 mg/kg
Zn: ≤0.05 mg/kg
Zr: ≤0.1 mg/kg
heavy metals: ≤1 ppm (by ICP-OES)

SMILES string

Cl

InChI

1S/ClH/h1H

InChI key

VEXZGXHMUGYJMC-UHFFFAOYSA-N

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Application


  • Monitoring the extraction of copper from chicken dung leachate using an aluminium electrode as an indicator.: Hydrochloric acid is employed in the extraction process of copper from chicken dung, demonstrating its role in environmental and waste management (Kugeria et al., 2019).

  • Composition and physico-chemical properties of bottom sediments in the southern part of the Bratsk Reservoir (Russia).: This study utilizes hydrochloric acid to analyze the composition and properties of reservoir sediments, contributing to water quality assessment and environmental monitoring (Rzetala et al., 2019).

  • Enhanced alumina recovery from secondary aluminum dross for high purity nanostructured γ-alumina powder production: Kinetic study.: Hydrochloric acid is used to recover alumina from aluminum dross, highlighting its importance in recycling and material science (Mahinroosta et al., 2018).

  • Cytochalasins from an Australian Marine Sediment-Derived Phomopsis sp. (CMB-M0042F): Acid-Mediated Intramolecular Cycloadditions Enhance Chemical Diversity.: This research demonstrates the use of hydrochloric acid in facilitating intramolecular cycloadditions, enhancing chemical diversity in natural product synthesis (Shang et al., 2017).

  • Microbial and chemical analysis of illicit drugs samples confiscated from different areas of Pakistan.: Hydrochloric acid is applied in the chemical analysis of illicit drugs, assisting in forensic and law enforcement efforts (Hussain et al., 2016).

Other Notes

The article number 30721-4X2.5L will be discontinued. Please order the single bottle 30721-2.5L which is physically identical with the same exact specifications.
The article number 30721-4X2.5L-M will be discontinued. Please order the single bottle 30721-2.5L-M which is physically identical with the same exact specifications.
The article number 30721-6X1L will be discontinued. Please order the single bottle 30721-1L which is physically identical with the same exact specifications.
The article number 30721-6X1L-M will be discontinued. Please order the single bottle 30721-1L-M which is physically identical with the same exact specifications.

Pictograms

CorrosionExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

8B - Non-combustible corrosive hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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ADSORPTION OF IRON BY ANION EXCHANGE RESINS FROM HYDROCHLORIC ACID SOLUTIONS1.
Moore GE and Kraus KA.
Journal of the American Chemical Society, 72(12), 5792-5793 (1950)
THE HYDROLYSIS OF CHITIN BY CONCENTRATED HYDROCHLORIC ACID, AND THE PREPARATION OF LOW-MOLECULAR-WEIGHT SUBSTRATES FOR LYSOZYME.
J A RUPLEY
Biochimica et biophysica acta, 83, 245-255 (1964-11-01)
Quantitative estimation of sialic acids. II. A colorimetric resorcinol-hydrochloric acid method.
L SVENNERHOLM
Biochimica et biophysica acta, 24(3), 604-611 (1957-06-01)
Daejin Kim et al.
Environmental science & technology, 49(16), 9452-9459 (2015-06-25)
The rare earth elements (REEs) such as neodymium, praseodymium, and dysprosium were successfully recovered from commercial NdFeB magnets and industrial scrap magnets via membrane assisted solvent extraction (MSX). A hollow fiber membrane system was evaluated to extract REEs in a
Jay G Hosking et al.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 40(4), 1005-1015 (2014-10-21)
Successful decision making often requires weighing a given option's costs against its associated benefits, an ability that appears perturbed in virtually every severe mental illness. Animal models of such cost/benefit decision making overwhelmingly implicate mesolimbic dopamine in our willingness to

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