About Us

PeroxyChem is a leading global manufacturer of persulfates, innovative remediation technologies and adjacent chemistries. With persulfate manufacturing locations in Tonawanda, New York, USA and at RheinPerChemie GmbH in Rheinfelden, Germany, we produce the highest quality persulfate products, have superior technical expertise and the most reliable supply in the world.

Our History

In 2002, Degussa AG sold its persulfates plant in Rheinfelden, Germany to Unionchimica S.p.A, which founded RheinPerChemie GmbH as a new business unit for the production and sale of persulfates.

In 2011, FMC Corporation acquired the European persulfates business of RheinPerChemie GmbH from Unionchimica S.p.A. It strengthened the FMC Peroxygens Division's global reach and broadened the company's product portfolio in environmental, electronics, food safety and other applications to Europe, the Middle East and Africa.

In 2014, FMC Corporation divested its Peroxygens Division, including RheinPerChemie GmbH, creating PeroxyChem, an independent company.

In 2020, Evonik Industries AG acquired PeroxyChem, including RheinPerChemie GmbH.


Who We Are

Our dedicated plant employees contribute to PeroxyChem's 70+ years of persulfate production experience. With an unyielding commitment to safety at its core and backed by an exceptional team, the company prides itself on exemplary customer service, product quality, reliability and superior technical service. We supply products for environmental, oil and gas, pulp & paper, chemical synthesis, and other industrial and consumer markets.

We are a company founded on strong core values that emphasize safety, our people, innovation, teamwork, accountability, and passion for growth and improvement. These values and how they are woven into our everyday work, are what separate us as a value-added global technology company. A sense of accountability coupled with our enthusiasm for business creativity allows us to solve market needs, ensure product integrity and provide exceptional customer service.


We prioritize the well being of our people, the community and the environment.

Our People

We believe our people are our greatest resource and strive to establish an open environment that fosters respect & the sharing of ideas.


We use innovation to excite the customer and outdo the competition.

Passion for Focus and Growth

We are committed to the type of growth in ourselves and in our business that creates enterprise sustainability.

Continuous Improvement

We encourage each other to find better, more efficient and more productive ways of performing our work.

One Team

By working as teammates, we leverage the power of the group. Keeping an open dialogue is key to helping us grow as individuals and as a business.

Act Like Owners

We think and do as if we are owners, making the right choices and investing wisely.

Read the PeroxyChem Code of Ethics and Business Conduct:




Our goal is to develop practices and products that ensure a safer world and a sustainable future.

Please click here to read RheinPerChemie’s Environmental, Safety, Health, Quality and Energy Policy or view our ISO 50001, ISO 9001 and ISO 14001 certificates.

At PeroxyChem, we live our core values and are committed to performing our business at the highest standards - honestly, ethically and in compliance with all applicable laws. We are proud to participate in the International Chemistry Council Responsible Care initiative and operate our business according to its guiding principles.


About Evonik

As of February 3, 2020 PeroxyChem joins Evonik to provide innovative specialty chemicals that make products healthier, more efficient and more effective. We look forward to serving customers as one company.
Evonik is one of the world leaders in specialty chemicals. The company is active in more than 100 countries around the world and generated sales of €13.1 billion and an operating profit (adjusted EBITDA) of €2.15 billion in 2019. Evonik goes far beyond chemistry to create innovative, profitable and sustainable solutions for customers. More than 32,000 employees work together for a common purpose: We want to improve life, day by day.




Read more here or visit the Evonik website.