Blue Verditer 100g

SKU: NAP-417-1110
Unit Price
Quantity
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US$ 93.33
US$ 102.00
US$ 93.33
US$ 102.00
US$ 92.771%
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US$ 92.441%
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Description

Blue Verditer is the name given to artificial basic copper carbonate with approximately the same chemical composition as azurite. Refiner's dark blue verditer was used in watercolors and distemper during the 17th and 18th centuries. Our Refiner's dark blue verditer is made according to an English recipe of the 18th century.

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Origin and History

Blue verditer is the name given to artificial basic copper carbonate with approximately the same chemical composition as azurite. It is believed that blue verditer was a byproduct of silver refining. Numerous early recipes for its preparation are known; the best types appear to have been prepared at relatively low temperatures with a copper salt. "Refiner’s verditer" was considered the best type of copper carbonate and was widely used as house paint during the 17th and 18th centuries with continuing use up to the 19th century.

Source

Our Refiner's dark blue verditer is made according to an English recipe of the 18th century that requires relatively low temperatures for its manufacture. This deep blue, slightly more greenish than natural azurite, lends itself well to consistent applications of color. Microscopically, blue verditer appears as tiny, rounded, fibrous aggregates, even in size and blue by transmitted light. It is similar in color to finely ground azurite.

Permanence and Compatibility

Blue verditer is stable in lime and is well suited for tempera and watercolor, but is liable to darken or become greenish in oil. However, it can be used with some success if it is mixed with lead white ground in oil. The white pigment lightens the blue and keeps it from appearing too dark. Painted swatches of our Refiner's dark blue verditer ground in oil show little change in color after five years.

Oil Absorption and Grinding

Verditer absorbs a medium amount of oil (23 g oil per 100 g of pigment).

Toxicity

Blue verditer contains copper, which can be toxic if inhaled or ingested. Care should be used in handling the dry powder pigment to avoid inhaling the dust.

For more information on how to handle pigments safely, please visit .

Shipping specs
Weight
3.52 lbs
Shipping from
This product is shipped from our warehouse in Willits, CA, United States
Our guarantee
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
A 25% handling charge is levied against all authorized returns except those due to our error. Unauthorized returns are subject to a 40% handling charge. Damages & defects must be reported to us within 14 days.
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