应用：
为镍浴中的主要成分,是镀液中Ni2+的来源,由于镍金属特有的物理特性,使得镀镍层无论是作为防护装饰性镀层(如五金件,门把手等)还是功能性镀层(如作为贵金属电镀的抗扩散中间层等)都有着广泛的用途,是表面处理工业中最重要的镀种.
产品介绍：
镀镍液的重金属污染主要是Cu2+,Fe2+,Zn2+,当Cu2+达到100~500ppm时,导致镀层低电流区发黑,严重时镀层无光亮,Fe和Zn的污染主要来源于主盐和阳极.当Fe2+达300~500ppm时,镀层发脆,产生针孔.当Zn2+达200ppm时,镀层低电流区出现条纹.
JHD高纯度硫酸镍,采用的生产工艺能有效的除去影响镀浴性能的金属离子以及有机杂质.由于它的高品质,可适用于装饰性电镀和电子电镀以及化学镀镍,且无需经过任何处理就能直接使用.与其他固体产品相比,主要有下面的优点：
1．免除了添加前的净化处理程序,可节省净化时所好用的成本(包括人力,物料以及硫酸镍的损失)
2．只需加水或硼酸来调配建浴,易于控制.
3．金属杂质如铅,镉以及其他有害金属都很低.
4．在使用前不需弱电解(假镀)处理.
Application:
It si the main compound in nickel baths and the source of Ni2+in the plating solution. Owing to the unique physical properties of metallic nickel, the nickel coating is widely ues either as a protective/decorative coating (hardware,door handle,etc) or as a functional coating (diffusion-resistant interlayer for noble metal plating). It has become the most important coating in the surface treatment industry.
Product Introduction:
The main heavy metal pollutants of the nickel plating solution are Cu2+,Fe2+and Zn2+. When Cu2+reaches 100~500ppm, the low-current area of the coating blackens and the coating might lack lustre. Fe and Zn are contaminants produced from the main salt and the anode. When Fe2+reaches 300~500ppm the coating will become brittle and produce pinholes; when Zn2+reaches 200ppm, streaks will appear in the low-current area of the coating.
The JHD high purity nickel sulfate is processed so that metallic ions and organic impurities that affect the plating bath’s performance can be removed effectively.
Due to its high quality, it can be used for decorative, electronic plating and chemical nickel plating without treatment. Compared to other solid and liquid products. It has the following advantages:
- The pre-treatment purification process is eliminated, saving the cost of purification (including labor, material loss).
- The bath can be easily controlled by adding water or boric acid only.
- Levels of metal impurities, such as lead, cadmium, are very low.
- There is no need for false plating treatment before operation.
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主要技术指标(Technical specification)：
测试项目(Test items)
技术指标(Specifications)
含量(Assay as Ni+Co)
≧22.2%
水不溶物(Water insoluble matter)
≦100ppm
PH值(50g/L,25℃)
≧3
铁(Fe)
≦10ppm
铜(Cu)
≦10ppm
钴(Co)
≦30ppm
铅(Pb)
≦10ppm
锌(Zn)
≦10ppm
钙(Ca)
≦50ppm
镁(Mg)
≦50ppm
镉(Cd)
≦5ppm
锰(Mn)
≦10ppm
铬(Cr)
≦5ppm
汞(Hg)
≦5ppm
