Rublev Colours Dispersion Chromium Oxide Green - 2 fl oz

Use this dispersion to tint egg tempera, casein paint, milk paint, fresco plaster, distemper, glue tempera, gesso, and toned grounds. Add the binder of your choice dropwise to the dispersion and stir gently — avoid vigorous stirring, which can introduce air bubbles.

Delivers the same pigment used in dry powder and oil paint, pre-dispersed in water and ready to mix with any water-based painting medium. Shake well before use; some settling is normal in a dispersion with no added fillers. The dispersion is formulated to resist freezing and microbial spoilage in storage, using the stabilization approach appropriate to natural mineral pigments — different from the methods we use for modern synthetic pigments in the same dispersion range.

Why a dispersion instead of dry pigment? A pre-dispersed pigment eliminates the dust hazard of handling dry powder, removes the need for grinding or wetting-out, and provides consistent colour strength from bottle to bottle. The trade-off is cost per weight of pigment — dispersions are more concentrated and more expensive per gram than dry powder, but the convenience and safety benefits are substantial for painters working regularly in water-based media.

Chromium Oxide Green aqueous pigment dispersion, also known as chromium sesquioxide or chromia, is one of four oxides of chromium.

Though chromium oxide green is not a severe health hazard, it can irritate the skin and eyes and cause nausea and other problems if ingested. Dust inhaled can also cause respiratory problems. It is not a fire hazard and does not readily react with other materials. This pigment is FDA-approved (Section 178.3297). It can be used in polymers used in contact with food at a level not to exceed 5% of the weight of the polymer. In olefin polymers, it complies with 177.1520 of this chapter. The pigment in repeat-use rubber articles complies with 177.2600 of this chapter, and total use is not to exceed 10% by the weight of rubber articles.