1.05595

Sodium hydroxide solution

c(NaOH) = 0.33 mol/l (1/3 N), Titripur^®

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

Properties

• 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: 0.33 M
• technique(s): titration: suitable
• pH: 13.5 (20 °C in H₂O)
• density: 1.01 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

• Facile Synthesis of Carbon Dots from Amido Black 10b for Sensing in Real Samples.: This study presents a simple method for synthesizing carbon dots using Sodium hydroxide solution as a reagent. The carbon dots were applied in the detection of various analytes in real samples, showcasing the versatility of Sodium hydroxide solution in the preparation of sensing materials (Li et al., 2022).


• Fast Automated Online Xylanase Activity Assay Using HPAEC-PAD.: The research introduces a rapid and automated method for measuring xylanase activity. Sodium hydroxide solution is utilized in the preparation of samples for high-performance anion-exchange chromatography with pulsed amperometric detection (HPAEC-PAD), highlighting its role in enhancing analytical procedures in enzyme activity assays (Cürten et al., 2018).


• Synthesis, Characterization and Adsorption Properties of Diethylenetriamine-Modified Hypercrosslinked Resins for Efficient Removal of Salicylic Acid from Aqueous Solution.: This article details the use of Sodium hydroxide solution in the synthesis and functionalization of hypercrosslinked resins. These resins demonstrate high efficiency in removing salicylic acid from aqueous solutions, indicating the importance of Sodium hydroxide solution in creating effective adsorbent materials (Huang et al., 2012).


• Physiological Function of Insoluble Dietary Fiber Prepared from Exploded Oak Wood (Quercus mongolica).: This study explores the preparation of insoluble dietary fiber using exploded oak wood. Sodium hydroxide solution is employed in the treatment process, demonstrating its utility in modifying natural materials for nutritional applications (Yang et al., 2006).

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

Titripac^® packaging - all SKU-pack size numbers ending "4000, 4003, 9010, 9013" - more information on www.sigmaaldrich.com/Titripac

Analysis Note

Form liquid
Amount-of-substance concentration 0.3316 - 0.3350 mol/L
Measurement uncertainty ± 0.0010 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
• Signal Word: Warning
• Hazard Statements: H290 - H315 - H319
• Precautionary Statements: P234 - P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• Hazard Classifications: Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2
• Storage Class Code: 8B - Non-combustible, corrosive hazardous materials
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable