Minium (Red Lead or Surik) Pigment

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457-10
Minium, also known as "surik" or "surick" (Russian), is red lead, an oxidation product of lead minerals. It is an intense orange red that is opaque and works well in oil and egg tempera.

Minium, also known as “surik” (Russian), is “red lead,” an oxidation product of lead minerals. Minium gets its name from the Minius River in northwest Spain, where the native mineral was once mined in antiquity. The name minium has also been applied to cinnabar, a red mercury sulfide, but now is exclusively used to refer to red lead oxide. The artificially produced minium is used as a pigment in paints and dyes although the health concerns of lead have greatly diminished this role.

Pigment Names
Artificial: Chinese: ch'ien tan or tan-fen
English: red lead, minium
French: minium or minium de plomb
German: Mennige or Bleimennige
Italian: minio or minio di piombo
Japanese: etan
Russian:
Spanish: minio
Mineral: English: minium
French: minium
German: Mennige
Italian: minio
Russian:
Spanish: minio or azarcon, from Arabic zarqun
Synonyms: English: mine rouge, mineral red, Paris red, red lead, Sandix, Saturnine, Saturn red, surick, surik
Italian: rosso saturno

Origin and History

Red lead was used in the classical world at least since the 2nd century C.E. According to Ralph Mayer (The Artist's Handbook, p. 51), the Romans had applied the word minium to their native vermilion, cinnabar, and to a lesser extent, to a refined red oxide. Perhaps because cinnabar was often adulterated with red lead the term "minimum" was gradually more specifically applied to this mixture, and eventually to straight red lead. Cennino Cennini simply says of it, "A color known as red lead is red, and it is manufactured by alchemy." In medieval Latin it was called minium, and its extensive use in medieval illuminated manuscripts gives us the word "miniature", although it is purely coincidental that these works were small (to fit on the page). The Indian and Persian miniatures of the 17th to 19th centuries, which also feature red lead abundantly, are often finely detailed but not necessarily small at all. Red lead was often used as a substitute for genuine vermilion because it was a less expensive pigment.

Source

Red lead was a product of smelting lead ore since antiquity, although in medieval times it was prepared by heating lead white (basic lead carbonate) in air. Red lead is now made by heating litharge or white lead for some hours at a temperature of about 480° C. The pigment is bright red, has good hiding power and excellent texture. It is finely divided but may be either crystalline or amorphous, depending upon how it is made. Chemically, red lead is fairly active. When exposed to light and air it is not a particularly stable pigment. In spite of its bright color and good covering power artists do not much use it now, although it is still obtainable. Minium (red lead) is composed primarily of lead tetroxide (Pb3O4) 85 to 98% and litharge (PbO) 15 to 2%. The greater the amount of litharge the faster drying the pigment is in drying oil. When red lead contains greater than 10% litharge, it is unsuitable for use in oil paint that will be stored for any length of time.

Rublev Colours Red Lead (minium) is artificially made and is composed of 98% red lead (lead tetroxide, Pb3O4) and 2% litharge (PbO).

Permanence and Compatibility

Minium is liable to discoloration in the presence of air pollutants such as hydrogen sulfide. It reacts upon some pigments that contain free amounts of sulfur, such as poorly made cadmium yellows, for example. It should not be used in watercolor painting, as it may darken when exposoed to humidity and light. When mixed with oil (it requires only 10% binder), it is fairly permanent. It is best suited as an oil color or in encaustic paint. It has a good reputation in tempera painting. It has been observed to lighten in fresco painting due to the formation of lead sulfate from its interaction with moisture and the atmospheric pollutant of hydrogen sulfide.

Oil Absorption and Grinding

Red lead absorbs a very low amount of oil. The oil absorption ratio is 100 parts by weight of pigment to 6 parts by weight of linseed oil. If the measurement were grams, it would require 6 grams (by weight) of linseed oil to grind 100 grams (by weight) of pigment to form a stiff paste. It makes a very fast drying oil paint, and forms a hard, flexible film. When it is ground in oil, a little wax may be added to guard against its hardening too quickly.

Toxicity

Red lead is highly toxic, and utmost care should be used in handling the dry powder pigment to avoid inhaling the dust or ingesting the pigment in any form.

Pigment: Red Lead (Minium)
Pigment: Rublev Colours Red Lead (Minium)

Pigment Information
Color: Red
Colour Index: Pigment Red 105 (77518)
Chemical Name: Lead Tetroxide
Chemical Formula: Pb3O4
ASTM Lightfastness Rating
Acrylic: Not Rated
Oil: Not Rated
Watercolor: Not Rated
Properties
Oil Absorption: 6 g oil/100 g pigment
Average Primary Particle Size: 2 µm
U.S. Standard 325 Mesh Retain: 0.05%
Specific Gravity: 8.8–9.1
Density: 0.85–1.16 g/in3
Hardness: 2.5–3.0
Refractive Index: na=2.400

Health and Safety

DANGER! CONTAINS LEAD. HARMFUL IF SWALLOWED. Avoid ingestion and skin contact. Wear protective clothing and gloves to prevent contact with skin. Never use near children or pets. Conforms to ASTM D 4236.

DANGER
CONTAINS LEAD / CONTIENT DU PLOMB
DO NOT APPLY TO SURFACES ACCESSIBLE TO CHILDREN OR PREGNANT WOMEN.
NE PAS APPLIQUER SUR UNE SURFACE ACCESSIBLE AUX ENFANTS OU AUX FEMMES ENCEINTES.
Must be used exclusively as material for the purposes of arts, crafts or hobbies, not for use by children. Utiliser uniquement aux fins suivantes comme matériaux pour les besoins d'art, d'artisanat ou passe-temps, pas pour une utilisation par les enfants.

More Information
SKU457-10
BrandRublev Colours
VendorRublev Colours
Processing TimeOrders ship on Tuesdays and Thursdays.
ColorRed
Pigment TypeInorganic, Historical, Synthetic

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Minium (Red Lead or Surik) Pigment
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