1.09138

Sodium hydroxide solution

c(NaOH) = 0.5 mol/l (0.5 N), ready-to-use volumetric solution for titration, Titriplex^®

• Linear Formula: NaOH
• CAS Number: 1310-73-2
• Molecular Weight: 40.00
• MDL number: MFCD00003548
• UNSPSC Code: 12352305
• NACRES: NA.21

Properties

• product name: Sodium hydroxide solution, c(NaOH) = 0.5 mol/l (0.5 N), Titripur^®
• vapor pressure: 3 mmHg ( 37 °C)
• Quality Level: 200
• product line: Titripur^®
• form: liquid
• quality: Analyzed in our ISO 17025 accredited QC lab
• reaction suitability: reaction type: Acid-base reactions
• packaging: Titripac^® of
• concentration: 0.5 M
• technique(s): titration: suitable
• pH: 13.5 (20 °C in H₂O)
• density: 1.02 g/cm³ at 20 °C
• storage temp.: 15-25°C
• SMILES string: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• InChI key: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Description

Application

• Effect of Chemical Treatments on the Mechanical Properties of Jute/Polyester Composites.: This study investigates the impact of various chemical treatments, including Sodium hydroxide solution, on the mechanical properties of jute/polyester composites. The treatments enhance the bonding between fibers and matrix, leading to improved material properties (Flores et al., 2024).


• Environmental Sustainability and Physicochemical Property Screening of Chitin and Chitin-Glucan from 22 Fungal Species.: Sodium hydroxide solution is used in the extraction and processing of chitin and chitin-glucan from fungal species. The study evaluates the environmental sustainability and physicochemical properties of these biopolymers (Grifoll et al., 2024).


• Rapid Determination of Total Flavonoid Content, Xanthine Oxidase Inhibitory Activities, and Antioxidant Activity in Prunus mume by Near-Infrared Spectroscopy.: Sodium hydroxide solution is employed in sample preparation for the rapid determination of flavonoid content and enzymatic activity using near-infrared spectroscopy, highlighting its role in enhancing analytical techniques (Hao et al., 2024).


• Application of Near-Infrared Spectroscopy for Screening of Chlorothiazide Sodium Vials.: This research utilizes Sodium hydroxide solution in the preparation of samples for near-infrared spectroscopy screening of pharmaceutical vials, demonstrating its application in quality control processes (Isaacs et al., 2024).


• Preparation and Characterization of Hybrid Polypyrrole Nanoparticles as a Conducting Polymer with Controllable Size.: Sodium hydroxide solution is used in the synthesis of polypyrrole nanoparticles, which are characterized for their electrical properties and potential applications in electronic devices (Mahmood et al., 2024).

Features and Benefits

Accreditation:
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 www.sigmaaldrich.com/ISO17025.

Packaging

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 www.sigmaaldrich.com/SmartChemicals

Linkage

Replaces: SX0607E; SX0607E-9; SX0607E-3

Analysis Note

Form liquid
Amount-of-substance concentration 0.4975 - 0.5025 mol/L
Measurement uncertainty ± 0.0015 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 84 potassium hydrogen phthalate) by means of volumetric standard potassium hydrogen phthalate (article number 1.02400), 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

Safety Information

• pictograms: GHS05
• signalword: Warning
• hcodes: H290 - H315 - H319
• pcodes: P234 - P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• Hazard Classifications: Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2
• Storage Class: 8B - Non-combustible, corrosive hazardous materials
• wgk_germany: nwg
• flash_point_f: Not applicable
• flash_point_c: Not applicable