推荐产品
产品名称
2 mol/L 氢氧化钠溶液 溶液, for analysis EMSURE®
蒸汽压
3 mmHg ( 37 °C)
质量水平
产品线
EMSURE®
表单
liquid
浓度
19.0-21.8% NaOH
杂质
≤0.001% Fe (Iron)
≤0.002% Heavy metals (as Pb)
≤0.005% Chloride (Cl)
≤0.005% Sulfate (SO4)
≤0.2% Carbonate (as Na2CO3)
pH值（酸碱度）
>11 (20 °C in H2O)
密度
1.219 g/cm3 at 20 °C
储存温度
2-30°C
SMILES字符串
[OH-].[Na+]
InChI
1S/Na.H2O/h;1H2/q+1;/p-1
InChI key
HEMHJVSKTPXQMS-UHFFFAOYSA-M
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一般描述
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.
应用
- 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).
特点和优势
- 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
分析说明
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 %
法律信息
EMSURE is a registered trademark of Merck KGaA, Darmstadt, Germany
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Danger
危险声明
危险分类
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
储存分类代码
8B - Non-combustible, corrosive hazardous materials
WGK
WGK 1
法规信息
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