1.09139

氢氧化钠 溶液

c(NaOH) = 0.25 mol/l (0.25 N), ready-to-use volumetric solution for titration, Titriplex^®

• 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
• NACRES: NA.21

属性

• product name: 氢氧化钠 溶液, c(NaOH) = 0.25 mol/l (0.25 N), Titripur^®
• 蒸汽壓力: 3 mmHg ( 37 °C)
• 品質等級: 200
• 產品線: Titripur^®
• 形狀: liquid
• 品質: Analyzed in our ISO 17025 accredited QC lab
• 反應適用性: reaction type: Acid-base reactions
• 包裝: Titripac^® of
• 濃度: 0.25 M
• 技術: titration: suitable
• pH值: 13.5 (20 °C in H₂O)
• 密度: 1.01 g/cm³ at 20 °C
• 儲存溫度: 15-25°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

• Adsorption Studies: Sodium hydroxide solution is used in treating polymer adsorbents to enhance their adsorption properties. A recent study investigated the effect of treating a PVC/Aliquat-336 polymer adsorbent with sodium hydroxide on chromium (VI) adsorption. The treatment improved the adsorption capacity of the polymer, making it more effective in removing heavy metals from aqueous solutions (Ouazine et al., International Journal of Environmental Analytical Chemistry, 2022).


• Synthesis of Sodium Ethoxide: Sodium hydroxide solution is employed in the synthesis of sodium ethoxide, an important reagent in organic synthesis. Research has demonstrated that sodium ethoxide can be synthesized efficiently at ambient temperature using sodium hydroxide and ethanol-90. This method offers a straightforward and cost-effective approach for preparing this key chemical intermediate (Randriana et al., World Journal of Applied Chemistry, 2021).


• Corrosion Inhibition: Sodium hydroxide solution is used in corrosion inhibition studies. Research has shown that an aqueous extract of Thespesia populnea plant leaves can effectively inhibit the corrosion of aluminum steel in sodium hydroxide solution. The study utilized electrochemical techniques to demonstrate the formation of a protective film on the steel surface, highlighting the potential of natural inhibitors in industrial applications (Brindha and Venkatraman, Research Journal of Chemistry and Environment, 2023).

特點和優勢

认证：
此滴定溶液由我们获得DAkkS（Deutsche Akkreditierungsstelle，德国国家认证机构）DIN EN ISO/IEC 17025标准的滴定溶液物质的量浓度分析认可的校准实验室D-K-15185-01-00分析。认证证书请见www.sigmaaldrich.com/ISO17025.

包裝

产品包装编码（SKU-pack size number）尾数是“3”，如xxxxxx1003或xxxxxxx 4003，代表其为SmartChemical产品，通过产品标签上的RFID标记可将数据无缝传输到仪器。详情参见www.sigmaaldrich.com/SmartChemicals

Titripac^®包装：所有产品包装编码(SKU-pack size number)以“000, 4003, 9010, 9013”结尾 - 更多详情参见www.sigmaaldrich.com/Titripac

分析報告

形态：液体
物质的量浓度：0.24875 - 0.25125 mol/L
测量不确定度± 0.00075 mol/L
可溯源至NIST SRM

浓度通过容量滴定法在20°C测定。
此滴定溶液的物质的量浓度是使用符合ISO 17034的认证标准物质邻苯二甲酸氢钾基准试剂（货号1.02400）标定的，并可溯源至美国盖瑟斯堡国家标准技术研究所的一级标准参考物质（SRM）（NIST SRM 84邻苯二甲酸氢钾），由我们的DIN EN ISO/IEC 17025认可的德国达姆施塔特默克校准实验室负责分析。不确定度表示为扩展的测量不确定度，覆盖因子k = 2，覆盖95％的置信度。

注意：滴定度是一种用于校正容量滴定溶液、滴定设备、温度和其他实验室条件变化的校正因子。为了获得正确的滴定结果，建议在打开新瓶后并在一定时间间隔内，立即使用实验室专用设备并在实验室特定条件下对滴定度进行确定。

法律資訊

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

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

安全信息

• 象形圖: GHS05
• 訊號詞: Warning
• 危險聲明: H290 - H315 - H319
• 防範說明: P234 - P264 - P280 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• 危險分類: Eye Irrit. 2 - Met. Corr. 1 - Skin Irrit. 2
• 儲存類別代碼: 8B - Non-combustible, corrosive hazardous materials
• 水污染物質分類（WGK）: nwg
• 閃點（°F）: Not applicable
• 閃點（°C）: Not applicable