finishing.com logo ips1
HOME FAQs BOOKS JOBS: Help Wanted Suggestions      you are here: Hotline/Forum => Letter 35071

Need chemical compositions of Electrolytic chrome plating

+++++

Hai

I am an IMDS engineer, and I want some of chemical compositions of materials

Urgently I want the chemical composition of electrolytic chrome plating

This is the urgent requirement, Please reply me as soon as possible.

Raghavendra Upadhya
Rapid Global Business Solutions India Pvt. Ltd - Bangalore, Karnataka, India


+++++

Hello Raghavendra. Chrome plating is essentially chromium metal, with some contaminants. However, when most people speak of chrome plating they mean decorative nickel-chrome plating, which consists of a relatively heavy layer(s) of nickel underneath a thin (less than a micron) layer of chromium. It is difficult to know exactly what you want.

Please never rely on this public forum for an "urgent requirement" for information as the operators do not intend or want it it to be used for that purpose, and demanding that the readership be mobilized instantly to address your needs is significantly harder than herding cats. Free and urgent are opposites :-)

pic of Ted Mooney Teds signature
Ted Mooney, P.E.
finishing.com
Brick, New Jersey


+++++

As stated by you, the make up of chrome is 99.9+++% chromium metal with a valence state of zero.
The most common plating bath (but far from the only one) is water, chromic acid and sulfuric acid.
If you are really asking how much hexavalent chrome is in the part, that is zero%. If you are asking how much hex chrome is on the part, that is highly variable, depending on surface finish, shape and quality of rinsing/neutralization.

James Watts
- Navarre, Florida


ANSWER or FOLLOW UP POST an unrelated QUESTION HOT Topics

Disclaimer: It is not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information
presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The
internet is largely anonymous; some names may be fictitious and some recommendations may be deliberately harmful.

If you are seeking a product or service related to metal finishing, please check these Directories:

Jobshops Capital Equip. & Install'n Chemicals & Consumables Consult'g, Train'g, Software Environmental Compliance Testing Svcs. & Devices Used & Surplus


Home    -    Contact    -    ©1995-2012 finishing.com     -    Privacy    -    Search