等级
ACS reagent
质量水平
Agency
reag. ISO
reag. Ph. Eur.
蒸汽密度
>1 (vs air)
蒸汽压
<18 mmHg ( 20 °C)
3 mmHg ( 37 °C)
产品线
EMSURE®
检测方案
99-100% (total alkilinity calculated as NaOH)
形式
pellets
杂质
≤0.0003% Total nitrogen (N)
pH值（酸碱度）
>14 (20 °C, 100 g/L in H2O)
mp
318 °C (lit.)
溶解性
water: 1090 g/L at 20 °C
密度
2.13 g/cm3 at 20 °C
痕量阴离子
carbonate (as Na2CO3): ≤0.5%
chloride (Cl-): ≤0.0005%
phosphate (PO43-): ≤0.0005%
silicate (as SiO2): ≤0.001%
sulfate (SO42-): ≤0.0005%
痕量阳离子
Al: ≤0.0005%
As: ≤0.0001%
Ca: ≤0.0005%
Cu: ≤0.0002%
Fe: ≤0.0005%
Hg: ≤0.00001%
K: ≤0.020%
Mg: ≤0.0005%
Ni: ≤0.0005%
Pb: ≤0.0005%
Zn: ≤0.001%
heavy metals (as Ag): ≤0.0005%
heavy metals (as Pb): ≤0.0005%
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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应用
- Biosorbent derived from coffee husk for efficient removal of toxic heavy metals from wastewater.: Researchers developed a biosorbent from coffee husk to remove heavy metals from wastewater. Sodium hydroxide plays a critical role in the chemical activation of the coffee husk, enhancing its adsorption capacity (Quyen et al., 2021).
- Development of Advanced Chemometric-Assisted Spectrophotometric Methods for the Determination of Cromolyn Sodium and Its Alkaline Degradation Products.: This paper presents advanced spectrophotometric methods for analyzing cromolyn sodium and its degradation products. Sodium hydroxide is used to induce the degradation of cromolyn sodium, allowing for the study of its breakdown products (El Zahar et al., 2020).
- High resolution and high throughput analytical methods for d-tagatose and process related impurities using capillary electrophoresis.: The study develops capillary electrophoresis methods for analyzing d-tagatose and its impurities. Sodium hydroxide is employed as an electrolyte to enhance the separation and resolution in the electrophoresis process (Surapureddi et al., 2020).
- Phosphorus in recycling fertilizers - analytical challenges.: This research addresses the analytical challenges in determining phosphorus in recycling fertilizers. Sodium hydroxide is used to adjust the pH of samples, which is crucial for accurate phosphorus quantification (Krüger and Adam, 2017).
联系
分析说明
检测（总碱度以NaOH计算）：99-100％
验证：通过测试
溶液外观：通过测试
碳酸盐（Na₂CO₃形式）： ≤ 0.5 %
氯化物（Cl）： ≤ 0.0005 %
磷酸盐（PO₄）： ≤ 0.0005％
硅酸盐（SiO₂）： ≤ 0.001 %
硫酸盐（SO₄）： ≤ 0.0005 %
总氮（N）： ≤ 0.0003％
重金属（以银计）： ≤ 0.0005 %
重金属（以铅计）： ≤ 0.0005 %
Al（铝）： ≤ 0.0005 %
As（砷）： ≤ 0.0001 %
Ca（钙）： ≤ 0.0005 %
Cu（铜）： ≤ 0.0002 %
Fe（铁）： ≤ 0.0005 %
Hg（汞）： ≤ 0.00001 %
K（钾）： ≤ 0.020 %
Mg（镁）： ≤ 0.0005 %
Ni（镍）： ≤ 0.0005 %
Pb（铅）： ≤ 0.0005 %
Zn（锌）： ≤ 0.001 %
法律信息
警示用语：
Danger
危险声明
危险分类
Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
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