El Greco Iconography Pigment - No 29 Red Caput Mortuum - 100gr

• Manufacturer
  El Greco
• Product Type
  Dry Pigments
• Barcode
  5212016643620
• Color Family
  Brown
• Paco code
  8311357
• Color Name
  Red Caput Mortuum
• No.
  29
• Size
  100gr
• SKU
  ELGREC-400.100-29
• Description
  Dry Pigment

Πληροφορίες Χρωστικής

• Pigment Name
  PB15:3-Phthalo Blue
• Pigment type
  organic
• Chemical Name
  beta copper phthalocyanine
• Chemical Formula
  C32H16CuN8
• Properties

  Phthalo Blue PB15:3 is a structural variant of Phthalo Blue PB15 that produces more greenish tones.

• Permanence

  Phthalo Blues are completely lightfast and stable and are permanent for all paint uses. They are currently used in inks, coatings, and many plastics due to their stability and are considered a standard pigment in printing ink and the packaging industry.

• Toxicity

  Phthalo Blues have no significant hazards, although those made before 1982 contained some PCBs (polychlorinated biphenyls).

• History

  Developed by chemists using the trade name Monastral Blue, the organic blue dyestuff now known as Phthalo Blue was presented as a pigment in November 1935 in London. Its discovery was accidental. The dark color was observed in a kettle where a dye was being made from a British dyestuff plant. The demand for such a pigment came from commercial printers who wanted a cyan to replace Prussian Blue.

• Pigment Name
  PR101-Red Iron Oxide
• Pigment type
  earth, synthetic
• Chemical Name
  iron oxides (synthetic), iron oxide, silica, alumina, lime, and magnesia or hydrated iron oxide
• Chemical Formula
  Fe2O2 or Fe2O3 x H2O
• Properties

  Red iron oxide varies in hue and transparency, depending on hydration and slight impurities. Indian Red is a slightly duller, deep brick hue with a bluish undertone. It is very dense and opaque, with excellent tinting strength and covering power. It is dependable when mixing with all other permanent pigments and yields good flesh tints when mixed with Zinc White. It is the synthetic version of PR102, which is a pigment made from earth reds, or natural red iron oxides, and the names applied to PR101 and PR102 often overlap. The synthetic red iron oxides have mostly replaced natural red iron oxides and are brighter, stronger, finer, and more permanent. Indian Red is the highest grade bluish shade. Light Red, English Red, and Venetian Red are yellowish shades. Mars Violet is a dull and subdued bluish or purplish oxide.

• Permanence

  Red iron oxide is very lightfast with excellent permanence.

• Toxicity

  Red iron oxide has no significant hazards.

• History

  Natural red iron oxide comes from the mineral ore hematite, called bloodstone by the ancient Greeks from the word hema, meaning blood. It is one of the oldest pigments, has been used by every major civilization, and was an important mineral for medieval alchemists. It was not widely used in artists' materials until the 17th century and was not produced in large quantities until the 18th century.

No files available