Novel Process for Functional Chromium Plating from Non-Toxic Trivalent Chromium (Cr(III)) Plating BathEPA Contract Number: 68D50116
Title: Novel Process for Functional Chromium Plating from Non-Toxic Trivalent Chromium (Cr(III)) Plating Bath
Investigators: Zhou, Chengdong
Small Business: Faraday Technology, Inc.
EPA Contact: Manager, SBIR Program
Project Period: September 1, 1995 through September 1, 1996
Project Amount: $219,788
RFA: Small Business Innovation Research (SBIR) - Phase II (1995) Recipients Lists
Research Category: SBIR - Pollution Prevention , Pollution Prevention/Sustainable Development , Small Business Innovation Research (SBIR)
Description:Chromium coatings are widely used in various industries. Functional chromium is currently plated from a Cr(VI) bath. However, Cr(VI) is identified as one of 17 "high-priority" toxic chemicals by the EPA. Compared to Cr(VI), Cr(III) is environ-mentally benign and the waste disposal cost is significantly reduced. However, functional chromium coatings are not currently available from a Cr(III) bath due to:
- equivalent or greater chromium coating thickness, slightly higher plating
rate, and higher current efficiency,
- equivalent hardness, and
- compatibility with current practice.
- process optimization,
- extended coating characterization,
- economic verification, and
- precommercial demonstration.