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中文名称：草酸
英文名称：Oxalic Acid订货以英文名称为准。
产品编号：IAEA-C-7CAS：/
品牌：标准物质产地：进口
标准值：见证书分子式：/
规格 市场价(元) 折后价(元) 供货周期 数量 加入购物车 50g 0.00 0.00 3-4周 加入购物车
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产品详细介绍
IAEA-C-7草酸Oxalic Acid
IAEA‑C7 and IAEA‑C8 Oxalic Acids were prepared by M. Le Clercq and J. van der Plicht, by using industrially oxalic acids, one produced using the carbohydrate oxidation route in India by the Vaishali firm, Aurangabad, and synthetic oxalic acids produced using the alkaline CO_H2O synthesis by the company Rhône‑Poulenc, Switzerland. Both materials, one containing modern 14C levels and the other one being free of 14C, were mixed both together in desired ratios by dissolution and re‑crystallization at Chemie Uettikon GmbH, Lahr, Germany [1], in quantities of 150 kg for each product.
Reference date for decay correction: 1998-01-01
Recommended value14C activity
[pMC]Estimated standard
error [pMC]49.53 0.12* * Marked value is expressed as standard uncertainty (1-σ level)
Information valued13CPDB
[‰]Standard deviation
[‰]-14.48 0.21** ** Marked value is standard uncertainty at 1-σ level, calculated from the data given in the respective literature
References:
