1.05590

Hydroxyde de sodium en solution (env. 32 %)

(for the determination of nitrogen) for analysis EMSURE^®

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

Propriétés

• Pression de vapeur: 3 mmHg ( 37 °C); 8 hPa ( 20 °C)
• Niveau de qualité: 300
• Gamme de produits: EMSURE^®
• pH: 14 (20 °C in H₂O)
• Pf: 9 °C
• Densité: 1.35 g/cm³ at 20 °C
• Température de stockage: 15-25°C
• Chaîne SMILES: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• Clé InChI: HEMHJVSKTPXQMS-UHFFFAOYSA-M

Description

Application

• Long-term durability of discarded cork-based composites obtained by geopolymerization.: This study utilizes a 32% sodium hydroxide solution to enhance the geopolymerization of discarded cork-based composites, demonstrating its effectiveness in improving long-term durability and environmental sustainability of building materials (Poggetto GD et al., 2024).


• Lactose-6-phosphate as an alternative to disodium phosphate in the production of processed cheese food.: Research highlights the application of a 32% sodium hydroxide solution in dairy processing, specifically in adjusting pH to optimize the use of lactose-6-phosphate as a stabilizer in processed cheese, showcasing its potential in food science (Alsaleem KA et al., 2024).


• Production of chitosan from shrimp shell using ultrasound followed by subcritical water hydrolysis.: This publication discusses the use of a 32% sodium hydroxide solution in the extraction and purification of chitosan from shrimp shells, using advanced techniques like ultrasound and subcritical water hydrolysis, underscoring its crucial role in biopolymer production (Matouri M et al., 2024).


• [Determination of boric acid and silicic acid in mineral water by nonsuppressed ion chromatography].: The use of a 32% sodium hydroxide solution is explored for the ion chromatographic analysis of boric and silicic acids in mineral water, reflecting its importance in analytical chemistry and environmental monitoring (Yang Z et al., 2023).


• Lanthanum and magnesium activated palygorskite for adsorption of phosphate in piggery wastewater.: This research employs a 32% sodium hydroxide solution to activate palygorskite for phosphate adsorption in wastewater treatment, demonstrating its effectiveness in improving water treatment technologies (Zhang X et al., 2023).

Remarque sur l'analyse

Dosage (acidimétrie, NaOH) : ≥ 32,0 %
Carbonates (exprimés en Na₂CO₃) : ≤ 0,2 %
Chlorures (Cl) : ≤ 0,004 %
Phosphates (PO₄) : ≤ 0,0005 %
Silicates (SiO₂) : ≤ 0,001 %
Sulfates (SO₄) : ≤ 0,003 %
Azote total (N) : ≤ 0,0001 %
Métaux lourds (exprimés en Pb) : ≤ 0,0005 %
Al (aluminium) : ≤ 0,0005 %
Fe (fer) : ≤ 0,0005 %

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
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable