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#166 Theoretical Precipitation Amount Of Plating

Category : Electroplating
August16, 2013

(3) Theoretical precipitation amount of electroplating

Plating precipitation amounts and film thickness when cathode electrical current efficiency is 100% is shown in [Table 1]. Cathode electrical current efficiency will vary largely depending on the plating bath types and plating conditions.

[Table 1] Various coefficients for various metal plating
ElementsElement symbolsAtomic weightValencesPrecipitation at 1Ah (g)Specific gravity (g/cm3) Film thickness at 1AM･dm2
(μｍ)
ZincZn65.3821.2207.10.286
CadmiumCd112.422.0978.640.405
GoldAu197.032.45019.30.212
23.6750.317
17.3510.635
SilverAg107.914.02610.50.639
ChromiumCr52.0060.32347.10.076
30.64680.152
CobaltCo58.9321.0998.90.206
TinSn118.741.1077.30.253
22.2150.506
IronFe55.8521.0427.90.220
CopperCu63.5521.1868.920.222
12.3710.443
LeadPb207.223.86611.30.570
NickelNi58.7021.0958.90.205
PlatinumPt195.141.82021.40.142
23.6400.283
PalladiumPd106.440.992512.00.138
31.3230.184
21.9850.276
RhodiumRh102.940.959912.50.128
31.2800.171
21.9200.256

*The right hand column of this table shows the coating thickness (μｍ) of the precipitated plating at 1 ampere per minute per 1dm2 of plating area.

MISUMI USA eCatalog

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