质量水平
方案
99.95% trace metals basis
表单
powder
电阻率
4.33 μΩ-cm, 20°C
沸点
3727 °C (lit.)
mp
1966 °C (lit.)
密度
12.41 g/cm3 (lit.)
SMILES字符串
[Rh]
InChI
1S/Rh
InChI key
MHOVAHRLVXNVSD-UHFFFAOYSA-N
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一般描述
铑是铂族中最稀有的金属之一，在地壳中发现的数量非常少（十亿分之二）。铑的化学性质与它不寻常的基态价电子构型有关，在基态价电子构型中，它最外层的s轨道上只有一个电子。这种电子构型对其催化能力具有重要意义，这使得铑在汽车催化转化器中非常有用。同时，金属铑是一种贵金属，这意味着它具有出色的抗氧化性。
铑的粉末形式是银灰色的，不仅用于汽车工业，还用于化学合成和粉末冶金等其他领域。铑比铂和钯更硬，熔化温度更高，这使它成为合金中有用的硬化元素。此外，它很受欢迎的涂层珠宝和其他物品，因为它提供了一个闪亮的保护层，不容易磨损。
铑的粉末形式是银灰色的，不仅用于汽车工业，还用于化学合成和粉末冶金等其他领域。铑比铂和钯更硬，熔化温度更高，这使它成为合金中有用的硬化元素。此外，它很受欢迎的涂层珠宝和其他物品，因为它提供了一个闪亮的保护层，不容易磨损。
应用
铑可用于以下应用：
- 活性炭负载铑（Rh/C）可作为高效的氧还原反应催化剂用于制造微生物燃料电池。
- 用作芳香腈的氢化硅烷化反应生成N, N-二硅烷胺的催化剂。
- 用于制备铑铱合金。
储存分类代码
4.1B - Flammable solid hazardous materials
WGK
nwg
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Eyeshields, Gloves, type P3 (EN 143) respirator cartridges
法规信息
新产品
此项目有
Simon Duttwyler et al.
Science (New York, N.Y.), 339(6120), 678-682 (2013-02-09)
Piperidines are prevalent in natural products and pharmaceutical agents and are important synthetic targets for drug discovery and development. We report on a methodology that provides highly substituted piperidine derivatives with regiochemistry selectively tunable by varying the strength of acid
Brendan T Parr et al.
Journal of the American Chemical Society, 135(12), 4716-4718 (2013-03-13)
The synthesis of highly functionalized pyrroles has been achieved by reaction of rhodium-stabilized imino-carbenes with furans. The reaction features an initial [3+2] annulation to form bicyclic hemiaminals, followed by ring opening to generate trisubstituted pyrroles.
Vutukuri Prakash Reddy et al.
Organic letters, 15(6), 1290-1293 (2013-02-28)
A straightforward and efficient method for the rhodium-catalyzed intermolecular oxidative cross-coupling of arenes and heteroarenes with thio- and selenophene derivatives (chalcogenophenes) via double C-H bond cleavage has been developed by using Cu(OAc)2/AgSbF6 as an oxidant. The reaction is applicable to
Rh/Pd catalysis with chiral and achiral ligands: domino synthesis of aza-dihydrodibenzoxepines.
Adam A Friedman et al.
Angewandte Chemie (International ed. in English), 52(37), 9755-9758 (2013-07-23)
Xian-Ying Shi et al.
Organic letters, 15(7), 1476-1479 (2013-03-09)
A novel rhodium(III)-catalyzed direct functionalization of the ortho-C-H bond of aromatic ketone derivatives and an intramolecular cyclization sequence produced indene derivatives in moderate to good yields. This cascade cyclization involves a conjugate addition of α,β-unsaturated ketone and subsequent aldol condensation.
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