If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/418/501/product-dating-information-06-25-mk.pdf
产品名称
氢氧化钠 溶液, c(NaOH) = 0.1 mol/l (0.1 N), Titripur®, reag. Ph. Eur., reag. USP
agency
reag. Ph. Eur.
reag. USP
品質等級
蒸汽壓力
3 mmHg ( 37 °C)
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
0.1 M
技術
titration: suitable
pH值
12.7 (20 °C in H2O)
密度
1.00 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
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應用
- 吸附研究: 氢氧化钠溶液可用于处理聚合物吸附剂，可以提高吸附剂的吸附性能。最近的一项研究考察了用氢氧化钠处理PVC/Aliquat-336聚合物吸附剂对铬（VI）吸附的影响。这种处理提高了聚合物的吸附能力，使其更有效地从水溶液中去除重金属（Ouazine et al., International Journal of Environmental Analytical Chemistry, 2022）。
- 乙醇钠的合成: 氢氧化钠溶液可用于合成乙醇钠，有机合成中的一种重要试剂。研究表明，在环境温度下使用氢氧化钠和乙醇-90可以高效地合成乙醇钠。该方法为这种关键化学中间体的制备提供了一种简单且经济有效的方法（Randriana et al., World Journal of Applied Chemistry, 2021）。
- 腐蚀抑制：氢氧化钠溶液可用于腐蚀抑制研究。研究表明，恒春黄槿（Thespesia populnea）叶片的水性提取物可以有效抑制铝钢在氢氧化钠溶液中的腐蚀。该研究利用电化学技术证明了钢表面保护膜的形成，重点介绍了天然抑制剂在工业应用中的潜力（Brindha and Venkatraman, Research Journal of Chemistry and Environment, 2023）。
特點和優勢
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。认可证书可在www.sigmaaldrich.com/ISO17025上找到。
包裝
Titripac®包装：所有产品包装编码(SKU-pack size number)以"4000, 4003, 9010, 9013”结尾。详情参见www.sigmaaldrich.com/Titripac
分析報告
摩尔浓度 0.0995 - 0.1005 mol/L
测量不确定度 ± 0.0003 mol/L
溯源 NIST SRM
浓度是通过容量滴定法在20°C测定的。
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
相關產品
訊號詞
Warning
危險聲明
防範說明
危險分類
Met. Corr. 1
儲存類別代碼
8B - Non-combustible corrosive hazardous materials
水污染物質分類（WGK）
WGK 2
閃點（°F）
Not applicable
閃點（°C）
Not applicable
商品
SmartChemicals enable wireless transfer of CoA data stored on an RFID tag on the consumable bottle to the titrator, reducing effort and chance for human error. Crucial data required for the application is transmitted safely, reliably and intelligently to the instrument.
Application Note details preparation of peracetic acid standard solution for analytical quality assurance (AQA) in testing laboratories.
实验方案
Method: Spectrophotometric Color Determination at 420 nm Zero adjustment For each measurement series, a zero adjustment is required. It is recommended to use the same cell for zero adjustment and for sample measurement. The zeroing procedure for the measurement series is automatically prompted by the instrument after entering the %RDS value.
相关内容
Karl Fischer titration determines water content in raw materials and products, a widely used analytical method.
卡尔费休滴定法可测定原材料和产品中的水分含量，是一种广泛使用的分析方法。
PFAS，也被称为“永久化学物质”，会在环境中永久性存在，威胁人类健康。我们提供PFAS定量的环境监测工具，助力研究人员、监管人员和实验室的PFAS检测。
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How can I determine the shelf life / expiration / retest date of this product?
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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