1.05593

Sodium hydroxide solution

21%, for analysis, EMSURE^®

• 別名: Sodium hydroxide solution
• 化学式: NaOH
• CAS番号: 1310-73-2
• 分子量: 40.00
• MDL番号: MFCD00003548
• UNSPSCコード: 12352305
• NACRES: NA.21

特性

• product name: 水酸化ナトリウム 溶液, for analysis EMSURE^®
• 蒸気圧: 3 mmHg ( 37 °C)
• 品質水準: 300
• 製品種目: EMSURE^®
• 形状: liquid
• 濃度: 19.0-21.8% NaOH
• 不純物: ≤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)
• 密度: 1.219 g/cm³ at 20 °C
• 保管温度: 2-30°C
• SMILES記法: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• InChI Key: HEMHJVSKTPXQMS-UHFFFAOYSA-M

詳細

詳細

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.

アプリケーション

• 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).

特徴および利点

• 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

アナリシスノート

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 %

法的情報

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

安全性情報

• ピクトグラム: GHS05
• シグナルワード: Danger
• 危険有害性情報: H290 - H314
• 注意書き: P234 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363
• 危険有害性の分類: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• 保管分類コード: 8B - Non-combustible, corrosive hazardous materials
• WGK: WGK 1