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Green Bice 50g

SKU : NAP-427-1105
Green Bice 50g
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Qty Price
 1   US$ 69.35 
 2   US$ 68.93 
 3   US$ 68.69 
 4-5   US$ 68.52 
 6-7   US$ 68.27 
 8-11   US$ 68.10 
 12+   US$ 67.86 
Price: US$ 69.35
US$ 69.35

Product description

Green bice is artificial basic copper carbonate green, sometimes called green verditer (derived from verte de terre). It has the same composition as that of malachite, but the particle structure is different.

Pigment Names
Synonyms: Bremen green, copper green, green verditer, green bice, French green, English verdigris and British verdigris

Origin and History
Artificial basic copper carbonate pigments are mentioned in 17th century literature and was noted in a late-16th century price list. The manufacture of basic copper carbonate was carried out by silver refiners in the 17th century. The process was difficult, slow and somewhat unpredictable, and the resulting hue could vary from an azure blue to a green with a distinctly bluish cast. By the mid-18th century, the ‘refiner’s’ process was replaced by a less expensive manufacturing method.

Green verditer is made by pouring a solution of copper nitrate onto chalk (calcium carbonate) after which the pigment washed and dried. In place of the slower ‘refiner’s’ process, copper carbonate may be produced by precipitation from a solution of copper salt, such as vitriol (copper sulfate), by the addition of pearl ash (potassium carbonate). Pigment made using these substances, however, invariably contains a proportion of copper hydroxide. Rublev Green Bice is made according to the latter recipes from the 18th century.

Permanence and Compatibility
Green bice is stable to light and normal atmosphere. It can be used in all vehicles and areas of basic copper carbonate on medieval frescoes are often still fairly bright green.

Oil Absorption and Grinding
Green bice absorbs a small amount of oil (22 g oil per 100 g of pigment). Grinding green bice will cause its hue to become lighter.

Green bice contains cooper, which is rated as toxic from prolonged exposure if inhaled or ingested. Care should be used in handling the dry powder pigment to avoid inhaling the dust.

Pigment: Green Bice

Pigment Information
Color: Green
Colour Index: -
Chemical Name: Basic Copper Carbonate
Chemical Formula: CuCO3.Cu(OH)2
ASTM Lightfastness Rating
Acrylic: Not Tested
Oil: Not Tested
Watercolor: Not Tested
Specific Gravity:
Refractive Index:
Oil Absorption: 22 g oil/100 g pigment

Natural Pigments

Natural Pigments is a limited liability company based in Willits, California. We manufacture and distribute rare and hard-to-find materials for fine artists and decorators. We specialize in supplying artists' materials that were used in historical painting since pre-historic times up to and including the nineteenth century.

We constantly search for materials and products of the finest quality so that we can bring them direct to you from the source. To do so, we travel the world to find materials specifically for use by professional artists and decorators. We obtain minerals from mines in Afghanistan, Chile, Russia, Ukraine and Uzbekistan, to name a few places, processing these into natural pigments. We purchase resins, gums and plants from India, Kenya and Malaysia to make natural varnishes and painting mediums.

Our mission is to provide the largest variety of natural pigments, paints and other professional artists' supplies, enabling us to bring you a selection that makes shopping for rare and hard-to-find art materials easy. Our objective is to promote the education and use of these materials among artists by providing detailed information for their employment in encaustic, fresco, oil, watercolor and tempera painting.
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This product is shipped from our warehouse in Gretna, NE, USA.
This product is brand new and includes the manufacturer's warranty, so you can buy with confidence.
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Green Bice 50 g
Pigment: Green Bice
Green Bice 50 g

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