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ArtistSupplySource.com » Painting & Painting Accessories » » » Natural Pigments Barite 1 kg - Color: White
 

Natural Pigments Barite 1 kg - Color: White

SKU: NAP-470-201K
Natural Pigments Barite 1 kg - Color: White
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 1   US$ 32.68 
 2   US$ 32.48 
 3   US$ 32.37 
 4-5   US$ 32.29 
 6-7   US$ 32.17 
 8-11   US$ 32.09 
 12+   US$ 31.98 
Price: US$ 32.68
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Subtotal:
US$ 32.68


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Product description

Details
Rublev Barite is made using the highest quality white, natural barium sulfate ore. Its unique properties of fine grind (3 micron median particle size), high specific gravity (4.4) and chemical inertness make it ideal for grounds, to make white paint and as paint filler.

Pigment Names
Mineral Names English: barite, baryte, bologna stone, bolognian spar, calk, cauk, cawk
French: barytite, barytine
German: Baryt, Schwerspath
Italian: barite
Japanese: 重晶石
Russian: барит
Spanish: barita
Swedish: tungspat
Synthetic Names English: blanc fixe
French: blanc fixe, sulfate de barium
German: Barytweiss, Permanentweiss
Italian: sulfato de bario
Russian: ланфикс баритовая сулъфат
Spanish: blanco fijo


Origin and History
Barite is a mineral consisting of barium sulfate. It is generally white or colorless, and is the main source of barium. Baryte is the British spelling and the mineral is also called heavy spar. The radiating form, sometimes referred to as Bologna Stone, attained some notoriety among alchemists for the phosphorescent specimens found in the 1600s near Bologna, Italy by one Mr. Vincenzo Cascariolo.

The name barite is derived from the Greek word βαρύς (heavy). In commerce, the mineral is sometimes referred to as "barytes." The term "primary barite" refers to the first marketable product, which includes crude barite (run of mine) and the products of simple beneficiation methods, such as washing, jigging, heavy media separation, tabling, flotation, and magnetic separation. Most crude barite requires some upgrading to minimum purity or density. Barite that is used as an aggregate in "heavy" cement is crushed and screened to a uniform size. Most barite is ground to a small, uniform size before it is used as a filler or extender, an addition to industrial products, or a weighting agent in petroleum well drilling mud.

Source
Barite commonly occurs in lead-zinc veins in limestone, in hot spring deposits, and with hematite ore. It is often associated with the minerals anglesite and celestine.

Barite is mined in Canada and Mexico and, in the United States in Arkansas, Missouri, Georgia, and Nevada. It is also prepared synthetically, called "blanc fixe," either by treating a solution of a barium salt with sodium sulfate or as a by-product in the manufacture of hydrogen peroxide.

Permanence and Compatibility
Barite is unaffected by dilute acids and alkalis. It is compatible with all pigments and in all vehicles.

Oil Absorption and Grinding
Barite absorbs 11 grams of oil per 100 grams of pigment. It readily mixes with oil and water to form a smooth paste.

Toxicity
Although barite contains a "heavy" metal (barium), it is not considered a toxic chemical by most governments because of its extreme insolubility. Care, however, should be used in handling the dry powder pigment to avoid breathing the dust.

Pigment: Barite
Pigment: Barite

Pigment Information
Color: White
Colour Index: Pigment White 22
Chemical Name: Barium sulfate
Chemical Formula BaSO4
ASTM Lightfastness Rating
Acrylic: Not rated
Oil: Not rated
Watercolor: Not rated
Properties
Purity: 98% BaSO4
Specific Gravity: 4.40
Density: 4.5 g/cm3
Mohs Hardness: 3-3.5
Refractive Index: nα=1.634; nβ = 1.636-1.638; nγ = 1.646-1.648
Median Particle Size: 3 microns
Weight % Retained on 325 Mesh Sieve 0%
Dry Bulk Density Loose: 75 lbs/ft3
Compacted: 115 lbs/ft3
Weight/Solid Gallon: 135.82
Bulking Value: 0.0279 gal
Oil Absorption: 11 grams oil/100 grams pigment






Specifications:

Color: White
Color Index: Pigment White 22
Chemical Name: Barium sulfate
Acrylic: Not rated
Oil: Not rated
Watercolor: Not rated
Purity: 98% BaSO4
Density: 4.5 g/cm3
Hardness: 3-3.5
Refractive Index: nα=1.634; nβ = 1.636-1.638; nγ = 1.646-1.648
Median Particle Size: 3 microns
Bulk Density: Loose: 75 lbs/ft3, Compacted: 115 lbs/ft3, 0.0279 gal
Weight Per Gallon: 135.82
Oil Absorption: 11 grams oil/100 grams 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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Barite 1 kg
Pigment: Barite




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