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/449/386/product-dating-information-mk.pdf
推荐产品
产品名称
三（羟甲基）氨基甲烷, volumetric standard, secondary reference material for acidimetry, traceable to NIST Standard Reference Material (SRM) Certipur® Reag. Ph Eur,Reag. USP
Agency
ISO 17025
reag. Ph. Eur.
reag. USP
质量水平
蒸汽压
0.0267 hPa ( 20 °C)
表单
solid
效能
>5000 mg/kg LD50, oral (Rat)
>5000 mg/kg LD50, skin (Rat)
技术
titration: suitable
pH值（酸碱度）
10.2-10.6 (20 °C, 6 g/L in H2O)
有效pH范围
7-9
pKa (25 °C)
8.1
沸点
219-220 °C/10 mmHg (lit.)
219-220 °C/13.3 hPa
mp
167-172 °C (lit.)
溶解性
678 g/L
密度
1.35 g/cm3 at 23 °C
堆积密度
840 kg/m3
储存温度
15-25°C
SMILES字符串
NC(CO)(CO)CO
InChI
1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2
InChI key
LENZDBCJOHFCAS-UHFFFAOYSA-N
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一般描述
请访问ISO证书和现场质量自我评估以获取当前证书
请访问http://www.sigma-aldrich.com下载证书，以查看认证价值，包括不确定性和过期日期。
应用
特点和优势
- 以坚固玻璃瓶装固体形式提供，确保开封前整个保质期内的稳定性。
- 符合ISO 17034要求的认证标准物质(CRM)
- 可溯源至NIST SRM的高纯物质
- 经DIN EN ISO/IEC 17025认可实验室验证
- 符合美国和欧洲药典试剂章节的标准
- 高品质材料，可提供精准的滴定测定
- 随附分析证书（CoA）
包装
推荐产品
法律信息
相关产品
储存分类代码
11 - Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
商品
The titer determination or standardization of a titration solution is essential for accurate and reliable titration results.
SmartChemicals enable wireless CoA data transfer, reducing human error in titration experiments.
相关内容
The titer determination or standardization of a titration solution is essential for accurate and reliable titration results. High quality solutions verified by high quality standards are the base for a reliable determinations.
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 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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