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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About This Item
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等级
ACS reagent
Agency
suitable for EPA 300
suitable for SM 2310
suitable for SM 2320
suitable for SM 4500 - NH3
方案
≥99.5%
表单
powder
杂质
≤0.005% silica
≤0.01% insolubles
缺失
≤1.0% loss on heating
pH值（酸碱度）
12 (25 °C, 106 g/L)
mp
851 °C (lit.)
痕量阴离子
chloride (Cl-): ≤0.001%
phosphate (PO43-): ≤0.001%
sulfur compounds (as SO42-): ≤0.003%
痕量阳离子
Ca: ≤0.03%
Fe: ≤5 ppm
K: ≤0.005%
Mg: ≤0.005%
heavy metals: ≤5 ppm (by ICP-OES)
SMILES字符串
O=C(O[Na])O[Na]
InChI
1S/CH2O3.2Na/c2-1(3)4;;/h(H2,2,3,4);;/q;2*+1/p-2
InChI key
CDBYLPFSWZWCQE-UHFFFAOYSA-L
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一般描述
应用
- 作为催化剂,用于合成查尔酮和扎查尔酮时醛和酮的羟醛缩合反应。
- 作为pH稳定剂，用于在柠檬香茅作为还原剂参与时合成FeO-NPs（氧化铁纳米颗粒）。
- 作为碱，用于Pd催化的铃木偶联反应。
- 作为碱，用于无过渡金属参与的铃木偶联反应，该反应使用水作溶剂且TBAB（四丁基溴化铵）作相转移催化剂催化芳基卤化物和芳基硼酸反应生成联芳基。
生化/生理作用
法律信息
警示用语：
Warning
危险声明
危险分类
Eye Irrit. 2
储存分类代码
11 - Combustible Solids
WGK
WGK 1
闪点(°F)
Not applicable
闪点(°C)
Not applicable
历史批次信息供参考:
分析证书(COA)
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This page is intended to make it easier to find the consumables you need based on the analytical method you’re using. Methods included on this page come from the EPA, Standard Methods and ASTM.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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