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
1.09115
Potassium hydroxide solution
c(KOH) = 0.1 mol/L (1 N) in ethanol, reag. USP, ready-to-use volumetric solution for titration in non-aqueous media, Titripur®
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产品名称
氢氧化钾溶液（乙醇基质）, c(KOH) = 0.1 mol/l (0.1 N), Titripur®, reag. USP
agency
reag. USP
品質等級
產品線
Titripur®
形狀
liquid
自燃溫度
425 °C (ethanol)
品質
Analyzed in our ISO 17025 accredited QC lab
expl. lim.
3.5-15.0 % (v/v) ethanol()
反應適用性
reaction type: Acid-base reactions
濃度
0.1 M
技術
titration: suitable
pH值
14 (20 °C in H2O)
轉變溫度
flash point 12 °C (ethanol)
密度
0.836 g/cm3 at 20 °C
儲存溫度
15-25°C
應用
- 伏安法测定：乙醇中的氢氧化钾溶液用于各种基质中抗氧化剂的伏安测定。最近有研究将其应用于石墨电极伏安法测定变压器油中抗氧剂2，6 -二叔丁基对甲酚（T501 )。该方法提高了抗氧化剂检测的灵敏度和准确性，对于保证油脂和其他工业流体的稳定性和性能至关重要（Zhou et al., Analytical Letters, 2021）。
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。认证证书请见www.sigmaaldrich.com/ISO17025.
包裝
分析報告
物质的量浓度：0.0995 - 0.1005 mol/L
测量不确定度± 0.0003 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
相關產品
訊號詞
Danger
危險分類
Eye Irrit. 2 - Flam. Liq. 2 - Met. Corr. 1 - Skin Irrit. 2
儲存類別代碼
3 - Flammable liquids
水污染物質分類（WGK）
WGK 1
閃點（°F）
55.4 °F - (ethanol)
閃點（°C）
13 °C - (ethanol)
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.
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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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