Mijello Mission Gold Watercolor - Raw Umber, 15 ml tube

Item #:01758-8070
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Raw Umber
Raw Umber

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AP Non-Toxic.

Product Details

Color:
Raw Umber
Size:
15 ml
No.
W563

Pigment Information

This color contains the following pigments:

Van Dyke Brown

Hansa Yellow


Pigment Name

Van Dyke Brown

Pigment Type

earth

Chemical Formula

Properties

Van Dyke Brown is a transparent brown pigment made from organic humic substances like soil, peat, or brown coal. Its transparency makes it more ideal for glazing than umbers and ochres. True Van Dyke Brown can turn dark or fade upon prolonged exposure to sunlight and has a tendency towards grey when mixed with whites. It is no longer used by artists concerned with permanence, and it has been replaced by mixtures containing Transparent Brown and Burnt Sienna.

Permanence

Van Dyke Brown was impermanent in its original varieties, but modern pigments by this name are generally more permanent.

Toxicity

Van Dyke Brown has no significant hazards unless contaminated with silica.

History

The discovery of this pigment dates from the late 16th or early 17th century. It was renamed in the 18th century after the great Flemish painter Anthony Van Dyke, who loved this dark, transparent color. Van Dyke Brown is made from treated Cassel earth with 80-90% organic materials and iron, alumina, and silica.


Pigment Name

Hansa Yellow

Pigment Type

monoazo

Chemical Formula

C18H18N4O6

Properties

This Hansa Yellow ranges from reddish yellow to greenish yellow with temperature shifts from cool to warm hues. It has good tinting strength and average to slow drying time.

Permanence

This Hansa Yellow has excellent lightfastness, particularly in the darker shades.

Toxicity

Hansa Yellow has no significant acute hazards, though its chronic hazards have not been well studied.

History

Hansa Yellows were first made in Germany just before WW1 from a series of synthetic dyestuffs called Pigment Yellow. They were intended to be a synthetic replacement for Cadmium Yellow.


Safety Data Sheet

UPC Code: 8809109437494

ASIN #: B00BFCTXTG