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320331

Sigma-Aldrich

Hydrochloric acid

37%, ACS reagent

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About This Item

Empirical Formula (Hill Notation):
HCl
CAS Number:
7647-01-0
Molecular Weight:
36.46
Beilstein:
1098214
EC Number:
231-595-7
MDL number:
MFCD00011324
UNSPSC Code:
12352301
PubChem Substance ID:
329753973
NACRES:
NA.21

Product Name

Hydrochloric acid, ACS reagent, 37%

grade

ACS reagent

Quality Level

200

Agency

suitable for GB 5009.253-2016
suitable for SM 5210

vapor density

1.3 (vs air)

vapor pressure

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

Assay

36.5-38.0% (ACS specification)
37%

form

liquid

impurities

≤1 ppm free chlorine

ign. residue

≤5 ppm

color

APHA: ≤10, free from suspended matter or sediment

bp

>100 °C (lit.)

density

1.070 g/cm3 at 20 °C (lit.)

anion traces

bromide (Br-): ≤0.005%
sulfate (SO42-): ≤1 ppm
sulfite (SO32-): ≤1 ppm

cation traces

As: ≤0.01 ppm
Fe: ≤0.2 ppm
NH4+: ≤3 ppm
heavy metals: ≤1 ppm (by ICP)

SMILES string

Cl

InChI

1S/ClH/h1H

InChI key

VEXZGXHMUGYJMC-UHFFFAOYSA-N

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General description

Hydrochloric acid (Reagent grade) is suitable for general lab applications and tests with low specification controls.,
Applications include:      
  • General Lab Use      
  • General Chemical Synthesis      
  • Purification      
  • Cleaning

Application


  • Unlocking high-performance HCl adsorption at elevated temperatures: This research demonstrates the use of hydrochloric acid solution for synthesizing robust Ca-Mg-Al mixed oxides. These materials are crucial in environmental applications for adsorbing acidic gases, showcasing hydrochloric acid′s role in developing solutions to combat air pollution (Cao et al., 2024).

  • Sustainable and Green Corrosion Inhibition of Mild Steel: Hydrochloric acid is utilized here to test new, environmentally friendly corrosion inhibitors. This is vital in industries where maintaining material integrity against chemical attack is crucial, highlighting hydrochloric acid′s role in innovative material science applications (Rizi et al., 2023).

  • Synthesis of Zinc Oxide Nanorods from Zinc Borate Precursor: This study uses hydrochloric acid in the synthesis of zinc oxide nanorods, important for supercapacitor applications. It underscores the critical role of hydrochloric acid in nanomaterials research, pushing the boundaries of energy storage technology (Lefdhil et al., 2023).

  • An improved digestion and analysis procedure for silicon in plant tissue: Hydrochloric acid is employed to digest plant tissues for silicon content analysis, enhancing agricultural and biological research methodologies. This application reflects the importance of hydrochloric acid in scientific studies that require precise chemical processing (Langenfeld and Bugbee, 2023).

  • N-N(+) Bond-Forming Intramolecular Cyclization of O-Tosyloxy β-Aminopropioamidoximes and Ion Exchange Reaction: In this research, hydrochloric acid plays a key role in organic synthesis, demonstrating its versatility in pharmaceutical compound development. The study provides insights into the synthesis of complex organic compounds, which are vital in medicinal chemistry (Kayukova et al., 2023).

Packaging

Single 2.5L units require a can opener to open the metal shipping container.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H290,H314,H335

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

Regulatory Information

易制毒化学品（3类）
危险化学品

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Certificates of Analysis (COA)

Lot/Batch Number
MKCW0143
MKCW4492
MKCW7848
MKCW3226
MKCV3839

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  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  4. What is the concentration of Product 320331, Hydrochloric acid?

    The specification range for concentration of 36.5 - 38.0% corresponds to a concentration range of 12.0 - 12.5 M.

  5. What does ACS stand for?

    ACS is the abbreviation for American Chemical Society. ACS grade reagents conform to specifications published by the American Chemical Society, and are suitable for use in analytical procedures.

  6. Is the concentration for Product 320331, Hydrochloric acid, given as w/w or w/v?

    The American Chemical Society specifies the concentration reported on a weight/weight basis.

  7. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

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    Ask a Scientist here.

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