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Hydrochloric acid solution

c(HCl) = 1 mol/l (1 N), Titripur®, reag. Ph. Eur., reag. USP

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Hydrochloric acid solution, Hydrogen chloride solution
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
MDL number:


reag. Ph. Eur.
reag. USP

Quality Level

product line





Analyzed in our ISO 17025 accredited QC lab

reaction suitability

reaction type: Acid-base reactions


Titripac® of


1 M


titration: suitable


<1 (20 °C in H2O)


1.02 g/cm3 at 20 °C

storage temp.


SMILES string




InChI key


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Related Categories


  • Research on the Synthesis of Zinc-Ammonium Phosphate Using Galvanic Waste Sludge as a Source of Zinc.: This study explores the synthesis of zinc-ammonium phosphate from galvanic waste sludge. Hydrochloric acid solution is utilized in the extraction process, demonstrating its effectiveness in recovering valuable metals from industrial waste (Morgovan et al., 2024).

  • Corrosion inhibition of mild steel in hydrochloric acid solution by the expired Ampicillin drug.: This research investigates the use of expired Ampicillin as a corrosion inhibitor for mild steel in hydrochloric acid solutions. The study highlights a novel application for expired pharmaceuticals in mitigating corrosion in acidic environments (Alamry et al., 2023).

  • Contactless conductivity sensor employing moist paper as absorbent for in-situ detection of generated carbon dioxide gas.: This paper discusses a contactless conductivity sensor for detecting CO2 gas, utilizing hydrochloric acid solutions to generate the gas for calibration and testing. The method offers a simple and efficient approach for environmental monitoring (Sonsa-Ard et al., 2020).

  • The microwave induced plasma with optical emission spectrometry (MIP-OES) in 23 elements determination in geological samples.: This article details the application of microwave-induced plasma optical emission spectrometry for elemental analysis in geological samples. Hydrochloric acid solution is used in the sample preparation process to ensure accurate and efficient element extraction (Niedzielski et al., 2015).

Features and Benefits

This volumetric solution is analyzed by our calibration laboratory D-K-15185-01-00 which is accredited according to DIN EN ISO/IEC 17025 for analysis of amount-of-substance concentrations in volumetric solutions by DAkkS (Deutsche Akkreditierungsstelle - German National Accreditation Body). The accreditation certificate can be found at


SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on

Titripac® packaging - all SKU-pack size numbers ending "4000, 4003, 9010, 9013" - more information on


Replaces: HX0603D; HX0603D-8

Analysis Note

Form liquid
Amount-of-substance concentration 0.995 - 1.005 mol/L
Measurement uncertainty ± 0.003 mol/L
Traceability NIST SRM

The concentration is determined by volumetric titration and refers to 20°C.
The amount-of-substance concentration of this volumetric solution is traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 723 Tris(hydroxymethyl)aminomethane) by means of volumetric standard Tris(hydroxymethyl)aminomethane (article number 1.02408), certified reference material according to ISO 17034, analyzed by our accredited calibration laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO/IEC 17025. The uncertainty is expressed as expanded measurement uncertainty with a coverage factor k=2 covering a confidence level of 95%.

Note: The titer is a correction factor to correct for variations of the volumetric solution, the titration equipment, the temperature and other laboratory conditions. For correct titration results it is recommended to determine a titer with the laboratory specific equipment and under laboratory specific conditions directly after opening a new bottle and at regular time intervals.

Legal Information

Titripac is a registered trademark of Merck KGaA, Darmstadt, Germany
Titripur is a registered trademark of Merck KGaA, Darmstadt, Germany



Signal Word


Hazard Statements

Precautionary Statements

Hazard Classifications

Met. Corr. 1

Storage Class Code

8B - Non-combustible, corrosive hazardous materials



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