1.05593
Sodium hydroxide solution
21%, for analysis, EMSURE®
别名:
Sodium hydroxide solution
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关于此项目
Concentration:
19.0-21.8% NaOH
Form:
liquid
产品名称
氢氧化钠 溶液, for analysis EMSURE®
vapor pressure
3 mmHg ( 37 °C)
Quality Segment
product line
EMSURE®
form
liquid
concentration
19.0-21.8% NaOH
impurities
≤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)
density
1.219 g/cm3 at 20 °C
storage temp.
2-30°C
SMILES string
[OH-].[Na+]
InChI
1S/Na.H2O/h;1H2/q+1;/p-1
InChI key
HEMHJVSKTPXQMS-UHFFFAOYSA-M
General description
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).
Features and Benefits
- 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
Analysis Note
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 %
Carbonate (as Na₂CO₃): ≤ 0.2 %
Chloride (Cl): ≤ 0.005 %
Sulfate (SO₄): ≤ 0.005 %
Heavy metals (as Pb): ≤ 0.002 %
Fe (Iron): ≤ 0.001 %
Legal Information
EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
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Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
存储类别
8B - Non-combustible corrosive hazardous materials
wgk
WGK 1