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339253

Sigma-Aldrich

Hydrochloric acid

37 wt. % in H2O, 99.999% trace metals basis

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

vapor density

1.3 (vs air)
1.3 (vs air)

Quality Level

vapor pressure

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

assay

99.999% trace metals basis

form

liquid

concentration

37 wt. % in H2O

color

light yellow

bp

>100 °C (lit.)

density

1.2 g/mL at 25 °C (lit.)

SMILES string

Cl

InChI

1S/ClH/h1H

InChI key

VEXZGXHMUGYJMC-UHFFFAOYSA-N

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General description

Hydrochloric acid is a strong mineral acid. Adsorption of Fe(III) by Dowex-1 anion exchange resin using various concentrations of HCl solutions has been studied.[84]

Application

Hydrochloric acid may be used in the following studies:
  • Membrane assisted solvent extraction (MSX) of rare earth elements (such as neodymium, praseodymium, and dysprosium) from NdFeB magnets and industrial scrap magnets.
[77]
  • Preparation of orcinolhydrochloric acid (Bial′s reagent), which is useful for the quantitative determination of sialic acids.
  • [69]
  • Preparation of alcoholic hydrochloric acid-carmine stain.
  • [82]

    Packaging

    100, 500 mL in glass bottle

    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

    Certificate of Analysis

    Enter Lot Number to search for Certificate of Analysis (COA).

    Certificate of Origin

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