-- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing.
    no popups, no spam
on this site
current topics
topic 2273

Where to buy "sulfonic acid"?


I need to have information (chemical name and molecular formula) about an additive - sulfonic acid - that we are currently buying from a supplier.

I searched on many books but I didn't find this product, only many derivatives of sulfonic acid. I think that this is only a commercial name.

Thanks in advance

Francesca Assone
electroplating shop - Torino, Italy

1st of 3 simultaneous responses (1998)


Sulfonic acid is not a commercial name. Actually, as you have noticed, sulfonic acid is a general name for all the organic chemicals which contain a -SO3H radical. As a result, there are numerous sulfonic acids which functions vary significantly with the other groups and their numbers in the chemicals. As an additive, it is generally a mixture of a few different chemicals with solvent. I do not think your supplier would like to give the names of exact chemicals in the additive.


Ling Hao
- Grand Rapids, Michigan

2nd of 3 simultaneous responses (1998)

Some one has to go back and study their organic chemistry more closely. Sulfonic acid is the general formula of

R-SO4H, where R can be a multitude of various organic structures. In some instances, the H is also replaced with an organic group.

If you are looking for the most common sulfonic acid found in plating, it would be Methane Sulfonic Acid, generally used in Tin/Lead (solder) plating. It's formula is CH3SO4H.

Richard Zuendt
- Garfield, New Jersey

3rd of 3 simultaneous responses (1998)

You probably need methyl sulfonic acid. Search for it under that name. Most distributors of plating chemicals should be able to get it for you.

bill vins
Bill Vins
microwave & cable assemblies
Mesa (what a place-a), Arizona 


Just to clarify, a sulfonic acid is the -SO3H, the -SO4H is a sulfate. For example the Methyl sulfonic acid is: CH3-SO3H-

Enrique Villavicencio
- Mexico City


Dear Sir, I would like to buy sulfonic acid of 99% purity. I can't find it anywhere. What are the other names that I could use in search engines.

Emlyn Dsilva
Manufacturing boosters - UAE

This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Comment to THIS thread START a NEW threadView CURRENT TOPICS

Disclaimer: It's 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 & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices

©1995-2018, Inc., Pine Beach, NJ   -   About   -  Privacy Policy
How Google uses data when you visit this site.