1.06469

氢氧化钠

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

• 别名: ‘苛性钠’
• 线性分子式: NaOH
• CAS号: 1310-73-2
• 分子量: 40.00
• MDL號碼: MFCD00003548
• 分類程式碼代碼: 12352305
• 酶委員會索引編號: 215-185-5
• NACRES: NA.21

属性

• 等級: ACS reagent
• 品質等級: 300
• agency: reag. ISO; reag. Ph. Eur.
• 蒸汽密度: >1 (vs air)
• 蒸汽壓力: <18 mmHg ( 20 °C); 3 mmHg ( 37 °C)
• 產品線: EMSURE^®
• 化驗: 99-100% (total alkilinity calculated as NaOH)
• 形狀: pellets
• 雜質: ≤0.0003% Total nitrogen (N)
• pH值: >14 (20 °C, 100 g/L in H₂O)
• mp: 318 °C (lit.)
• 溶解度: water: 1090 g/L at 20 °C
• 密度: 2.13 g/cm³ at 20 °C
• 負離子痕跡: carbonate (as Na₂CO₃): ≤0.5%; chloride (Cl^-): ≤0.0005%; phosphate (PO₄^3-): ≤0.0005%; silicate (as SiO₂): ≤0.001%; sulfate (SO₄^2-): ≤0.0005%
• 正離子痕跡: 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%
• 儲存溫度: 2-30°C
• SMILES 字串: [OH-].[Na+]
• InChI: 1S/Na.H2O/h;1H2/q+1;/p-1
• InChI 密鑰: HEMHJVSKTPXQMS-UHFFFAOYSA-M

说明

應用

• 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).

聯結

替代品：SX0590；SX0590-20

分析報告

检测（酸度，NaOH）：99-100％
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 %

法律資訊

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

安全信息

• 象形圖: GHS05
• 訊號詞: Danger
• 危險聲明: H290,H314
• 防範說明: P234 - P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 危險分類: Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A
• 儲存類別代碼: 8A - Combustible corrosive hazardous materials
• 水污染物質分類（WGK）: WGK 1
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable