1.06469

水酸化ナトリウム

pellets for analysis (max. 0.02% K) EMSURE^® ACS,Reag. Ph Eur,ISO

• 別名: カ性ソーダ
• 化学式: NaOH
• CAS番号: 1310-73-2
• 分子量: 40.00
• MDL番号: MFCD00003548
• UNSPSCコード: 12352305
• EC Index Number: 215-185-5

特性

• グレード: ACS reagent
• 品質水準: 300
• 認証: reag. ISO; reag. Ph. Eur.
• 蒸気密度: >1 (vs air)
• 蒸気圧: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• 製品種目: EMSURE^®
• アッセイ: 99-100% (total alkilinity calculated as NaOH)
• 形状: pellets
• 不純物: ≤0.0003% Total nitrogen (N)
• pH: >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
• 微量陰イオン: carbonate (as Na₂CO₃): ≤0.5%; chloride (Cl^-): ≤0.0005%; phosphate (PO₄^3-): ≤0.0005%; silicate (as SiO₂): ≤0.001%; sulfate (SO₄^2-): ≤0.0005%
• 微量陽イオン: 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%
• 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

アプリケーション

• 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).

関連事項

Replaces: SX0590; SX0590-20

アナリシスノート

Assay (acidimetric,NaOH): 99 - 100 %
Assay (total alkalinity calc. as NaOH): 99 - 100 %
Identity: passes test
Appearance of solution: passes test
Carbonate (as Na₂CO₃): ≤ 0.5 %
Chloride (Cl): ≤ 0.0005 %
Phosphate (PO₄): ≤ 0.0005 %
Silicate (SiO₂): ≤ 0.001 %
Sulfate (SO₄): ≤ 0.0005 %
Total nitrogen (N): ≤ 0.0003 %
Heavy metals (as Ag): ≤ 0.0005 %
Heavy metals (as Pb): ≤ 0.0005 %
Al (Aluminium): ≤ 0.0005 %
As (Arsenic): ≤ 0.0001 %
Ca (Calcium): ≤ 0.0005 %
Cu (Copper): ≤ 0.0002 %
Fe (Iron): ≤ 0.0005 %
Hg (Mercury): ≤ 0.00001 %
K (Potassium): ≤ 0.020 %
Mg (Magnesium): ≤ 0.0005 %
Ni (Nickel): ≤ 0.0005 %
Pb (Lead): ≤ 0.0005 %
Zn (Zinc): ≤ 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 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危険有害性の分類: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• 保管分類コード: 8A - Combustible, corrosive hazardous materials
• WGK: WGK 1
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable