Ultramarine Violet Watercolor Paint

Rublev Colours Ultramarine Violet offers a unique violet shade that is very clean, bright.

Ultramarine Violet is a synthetic inorganic pigment composed of a complex silicate of sodium and aluminum with sulfur, or sodium aluminum sulfosilicate. Ultramarine violet is made using the same process as ultramarine blue but is mixed with ammonium chloride, heated to 200–250° C., and exposed to air for four days until the violet color develops. Other methods are also used to produce ultramarine violet.

Permanence and Compatibility

Ultramarine violet is a synthetic violet pigment that is rated by the American Society of Testing and Materials (ASTM International) as lightfastness category I, which is the highest lightfastness. It is compatible with all pigments, resists alkalis, but has poor resistance to acids. Like ultramarine blue, it should not be used where acidic environments occur such as outdoors.

Health and Safety: There are no acute or known chronic health hazards associated with the anticipated use of this product (most chemicals are not fully tested for chronic toxicity). Always protect yourself against potentially unknown chronic hazards of this and other chemical products by keeping them out of your body. Do this by avoiding ingestion, excessive skin contact, and inhalation of spraying mists, sanding dusts and vapors from heating. Conforms to ASTM D-4236.

Note: Some separation of pigment and medium may occur in Rublev Colours Watercolors and is a natural process when no stabilizers are added to paint to prevent this from occurring.