31 августа, 2015 
Pokraskin Jean-Noel Berte
|
Pigment Name |
Formula |
Colour Index |
CAS# |
|
Cerium Sulfide Light Orange |
Ce2S3/La2S3 |
PO 78 C. I. 772850 |
12014-93-6/ 12031-49-1 |
|
Cerium Sulfide Orange |
Ce2S3 |
PO 75 C. I. 77283-1 |
12014-93-6 |
|
Cerium Sulfide Red |
Ce2S3 |
PR 265 C. I. 77283-2 |
12014-93-6 |
|
Cerium Sulfide Burgundy |
Ce2S3 |
PR 275 C. I. 772830 |
12014-93-6 |
Only a few truly high performance inorganic pigments are available today (with high performance in thermal, chemical, and UV stability) in the color range from red to yellow, such as cadmium sulfoselenide, lead molybdate and bismuth vanadate. Such products are currently used in applications for automotive coatings, engineering plastics, ceramic coloring and packaging, where high opacity, thermal stability, light-fastness and lack of warping are still difficult to obtain with organic or other inorganic pigments. The latter compounds have excellent performance characteristics, but their toxicity is environmentally questionable. Thus, driven by changes in legislation and government regulations, there is a growing need to develop new classes of inorganic pigments that are both non-toxic and environmentally unimpeachable, while preserving or even exceeding the optical, thermal, and chemical characteristics of present day high-performance pigments.
In the light of this situation, Rhodia saw an opportunity to develop a family of new pigments, called NeolorT, based on rare earth chemistry. The new pigments are rare earth cerium sulfides. Because cerium sulfide pigments possess good thermal stability, light-fastness, opacity and dispersibility, they are one of the most promising candidates as successors to today’s families of heavy metal pigments [1, 2].
High Performance Pigments. Edited by Edwin B. Faulkner and Russell J. Schwartz Copyright © 2009 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim ISBN: 978-3-527-31405-8
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Опубликовано в рубрике 