公开(公告)号：US06743950B2

公开(公告)日：2004-06-01

申请号：US10239862

申请日：2002-10-03

申请人： José Gonzalez ,  Lionel Chalumeau ,  Michel Limayrac

发明人： José Gonzalez ,  Lionel Chalumeau ,  Michel Limayrac

IPC分类号： C07C21100

CPC分类号： C25D3/52 ,  C01G55/00

摘要： A novel complex salt off palladium sulfate and ethylenediamine contains 31 to 41% by weight of palladium and has a molar ratio [SO4]:[Pd] of between 0.9 and 1.15 and a ratio [ethylenediamine ]:[Pd] of between 0.8 and 1.2. The invention further relates to a process for the preparation of this complex salt, and to the use of this complex salt for introducing palladium into an aqueous electrolysis bath of acidic pH for the electrochemical deposition of palladium or one of its alloys, or for adjusting the palladium concentration of such a bath.

摘要翻译： 硫酸钯和乙二胺的新型复合盐含有31〜41重量％的钯，摩尔比[SO 4]：[Pd]为0.9〜1.15，[乙二胺]：[Pd]的比例为0.8〜1.2 。 本发明还涉及一种制备该复合盐的方法，以及该复合盐用于将钯引入酸性pH的水性电解槽中以用于电化学沉积钯或其合金之一或用于调节 这种浴的钯浓度。

公开(公告)号：US06743346B2

公开(公告)日：2004-06-01

申请号：US10239863

申请日：2002-10-03

申请人： José Gonzalez ,  Lionel Chalumeau ,  Michel Limayrac

发明人： José Gonzalez ,  Lionel Chalumeau ,  Michel Limayrac

IPC分类号： C25D356

CPC分类号： C25D3/52 ,  C25D3/567

摘要： An aqueous electrolysis bath of acidic pH for the electrochemical deposition of palladium and its alloys, the bath containing a palladium compound and optionally at least one compound of a secondary metal to be co-deposited in the form of an alloy with the palladium. The bath also contains ethylenediamine as a palladium complexing agent, and an organic brightening agent, 3-(3-pyridyl)acrylic acid, 3-(3-quinolyl)acrylic acid or a salt thereof. The invention is also directed to a process for the electroplating of palladium or a palladium alloy utilizing an electrolysis bath as defined above by using current densities of between 0.5 and 150 A/dm2.

摘要翻译： 用于电化学沉积钯及其合金的酸性电解浴，所述浴含有钯化合物和任选的至少一种二次金属化合物，以与钯合金的形式共沉积。 该浴还含有乙二胺作为钯络合剂，和有机增白剂3-（3-吡啶基）丙烯酸，3-（3-喹啉基）丙烯酸或其盐。 本发明还涉及使用上述通过使用0.5至150A / dm 2的电流密度定义的电解浴来电镀钯或钯合金的方法。