1.05593

Sodium hydroxide solution

21%, for analysis, EMSURE^®

• Synonyme(s) : Sodium hydroxide solution
• Formule linéaire : NaOH
• Numéro CAS: 1310-73-2
• Poids moléculaire : 40.00
• Numéro MDL: MFCD00003548
• Code UNSPSC : 12352305
• Nomenclature NACRES : NA.21

Propriétés

• product name: Hydroxyde de sodium solution, for analysis EMSURE^®
• Pression de vapeur: 3 mmHg ( 37 °C)
• Niveau de qualité: 300
• Gamme de produits: EMSURE^®
• Forme: liquid
• Concentration: 19.0-21.8% NaOH
• Impuretés: ≤0.001% Fe (Iron); ≤0.002% Heavy metals (as Pb); ≤0.005% Chloride (Cl); ≤0.005% Sulfate (SO₄); ≤0.2% Carbonate (as Na₂CO₃)
• pH: >11 (20 °C in H₂O)
• Densité: 1.219 g/cm³ at 20 °C
• Température de stockage: 2-30°C
• Chaîne SMILES: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• Clé InChI: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Description

Description générale

Sodium hydroxide solution 21% (EMSURE^® grade product) is optimized for regulated analyses and highly demanding lab applications. It also offers the highest quality and unmatched scope of specifications to give complete control of test conditions and eliminate uncertainties. This reagent is ideal for demanding analytical procedures that need low detection limits and maximum sensitivity.

Application

• Recycling of Geopolymer Concrete: Discusses the utilization of sodium hydroxide solution in the recycling processes of metakaolin/slag-based geopolymer concrete, enhancing sustainability in construction materials under freeze-thaw conditions (Liu M, Liu H, et al., 2024).


• Recovery of Thorium and Tungsten: Details the use of sodium hydroxide solution in hybrid electrolysis-nanofiltration processes for the recovery of valuable metals from industrial waste, contributing to environmental sustainability and resource recovery (Man GT, Albu PC, et al., 2024).


• CO2 Adsorption Dynamics: Highlights the use of sodium hydroxide solution impregnated in activated carbon for CO2 adsorption, showcasing its effectiveness in environmental pollution control and providing insights into optimizing adsorption conditions using response surface methodology (Borisut P, Tangsathitkulchai C, et al., 2024).


• Quantitation of Hydroxycinnamic Acid: Describes a new HPLC-UV method utilizing hydrolyzation with sodium hydroxide solution for the quantitation of trans-p-hydroxycinnamic acid and its esters in plant leaves, advancing analytical chemistry in pharmaceutical and nutraceutical research (Lu SH, Liang XN, et al., 2023).

Caractéristiques et avantages

• Most extensive specifications worldwide: Tested for up to 70 parameters, extraordinary purity, very low limiting values
• Greater accuracy and control of analyses      
• Optimized for highly critical and demanding analyses      
• Ideal for method development      
• No interference or contamination due to unknown impurities

Remarque sur l'analyse

Assay (acidimetric): 19.0 - 21.8 %
Carbonate (as Na₂CO₃): ≤ 0.2 %
Chloride (Cl): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.002 %
Fe (Iron): ≤ 0.001 %

Informations légales

EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Pictogrammes: GHS05
• Mention d'avertissement: Danger
• Mentions de danger: H290 - H314
• Conseils de prudence: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• Classification des risques: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• Code de la classe de stockage: 8B - Non-combustible, corrosive hazardous materials
• Classe de danger pour l'eau (WGK): WGK 1