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Re: Chromium-free stain colorant

The Hansa Yellow monoarylide pigments (e.g. C.I. Pigment
Yellow 1, Yellow 1:1, and Yellow 3) were developed as
alternatives to Pb/Cr-based inorganic pigments such as C.I. Pigment
Yellow 34 (lead chromate).  I  suggest considering these pigments.
(Thanks to Dr Harold Freeman for this info).
Henry Boyter, Jr., PhD
Director of Research
Institute of Textile Technology
"Ride, boldly ride,"
The shade replied,--
"If you seek for Eldorado!"

----- Original Message -----
To: p2tech
Sent: Friday, June 01, 2007 9:53 AM
Subject: Chromium-free stain colorant

I am looking for an alternative to chromium-containing pigment for a water-based stain application.  the existing colorant provides a yellow tone. 
Michelle Gaither
Technical Research Lead
Pollution Prevention Resource Center