El Greco Iconography Pigment - No 64 Green Cobalt - 100gr

• Color Name
  Green Cobalt
• Paco code
  8311380
• No.
  64
• Manufacturer
  El Greco
• Product Type
  Dry Pigments
• Barcode
  5212016643392
• Color Family
  Green
• Size
  100gr
• SKU
  ELGREC-400.100-64
• Description
  Dry Pigment

Πληροφορίες Χρωστικής

• Pigment Name
  PY1-Hansa Yellow G
• Pigment type
  organic, monoazo
• Chemical Name
  -
• Chemical Formula
  C17H16N4O4
• Properties

  This Hansa yellow is a transparent yellow. It has great brightness and tinting strength and its drying time ranges from average to slow. Hansa Yellow makes more intense tints and cleaner secondaries than Cadmium Yellows, especially when mixed with other organic or modern colors like Phthalo Blue and Green. Because they are more transparent, they have great value as glazing colors.

• Permanence

  Hansa Yellow G has good permanence and lightfastness, particularly in the lighter shades.

• Toxicity

  Hansa Yellow pigments have no significant acute hazards, though chronic hazards have not been well studied.

• History

  Hansa Yellows were first made in Germany just before World War I from a series of synthetic dyestuffs called Pigment Yellow. Hansa Yellow G, introduced in 1910, was the first of these products to be commercialized. Hansa Yellow G was the standard yellow for printing inks until late in the 20th century, when stronger diarylide yellows began to replace it. It is still used a great deal in packaging, and for air drying paints.

• Pigment Name
  PW6-Titanium White
• Pigment type
  inorganic
• Chemical Name
  titanium dioxide
• Chemical Formula
  TiO2
• Properties

  Titanium White is the most brilliant of the white pigments. It is considered an all purpose oil color useful in all techniques and the best all around white. Its masstone is neither warm nor cool, placing it somewhere between Lead White and Zinc White. It is less prone to cracking and yellowing than Lead White, but it still yellows easily. Titanium White dries slowly in oil form, more slowly than Lead White but more quickly than Zinc White. It is opaque in oil and acrylic forms and semi-opaque in watercolor form. This pigment has good chemical stability, and its tinting strength is superior to both Lead White and Zinc White.

• Permanence

  Titanium White has excellent permanence and lightfastness.

• Toxicity

  Titanium dioxide is highly stable and is regarded as completely non-toxic. Animal studies do not indicate that it is absorbed biologically, even after long periods of exposure. The primary safety concern is with inhalation of fine pigment dust particles. If inhaled in large amounts over several years, Titanium White may cause benign pneumoconiosis visible on x-rays. The National Institute of Occupational Safety and Health (NIOSH) considers fine titanium dioxide particles, if inhaled, to be a human carcinogen. The primary concern for artists is to avoid exposure to fine particulate dust from raw pigments.

• History

  Titanium is the ninth most abundant element in the Earth's crust, however mineral deposits that are economical to mine are less common. Titanium dioxide was first discovered in 1821, although it could not be mass produced until 1919. Widespread use of the pigment began in the 1940s. Since that time, it has become the most commonly used white pigment. The name comes from the Latin word Titan, the name for the elder brother of Kronos and ancestor of the Titans, and from the Greek word tito, meaning day or sun.

• Pigment Name
  PG7-Phthalo Green
• Pigment type
  organic
• Chemical Name
  polychlorinated copper(II) phthalocyanine
• Chemical Formula
  C32H3Cl13CuN8 to C32HCl15CuN8 or C32H16CuN8Cl15 (PG7) or C32Br6Cl10CuN8 (PG36)
• Properties

  Phthalo Green is a transparent, cool, bright, high intensity color used in oil and acrylics. It comes from a Phthalocyanine Blue pigment where most of the hydrogen atoms have been replaced with chlorine, forming highly stable molecules. It has similar pigment properties and permanence to Phthalo Blue. It is slow drying and an excellent base color for mixing a range of bright greens. Phthalo Green is considered a very good alternative to Viridian because it is intense and mixes well and can be used to emphasize mineral colors in various tints. However, its tinting strength is very high, so it can overpower other colors. This pigment most closely resembles the discontinued and toxic Verdigris.

• Permanence

  Phthalo Greens are completely lightfast and resistant to alkali, acids, solvents, heat, and ultraviolet radiation. 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 Green has no significant hazards, but it contained PCBs (polychlorinated biphenyls) until 1982.

• History

  This bright blue-green was developed in 1935 and has been in use since 1938.

• Pigment Name
  PO34-Diarylide Orange
• Pigment type
  organic, disazo
• Chemical Name
  -
• Chemical Formula
  -
• Properties

  Diarylide Orange is a bright, reddish orange.

• History

  Diarylide Orange has been widely used in printing inks, plastics, emulsions, coatings and textile printing.

• Pigment Name
  PY42-Mars Orange
• Pigment type
  inorganic, earth
• Chemical Name
  iron oxide
• Chemical Formula
  Fe2O2 or Fe2O3H2O
• Properties

  Mars Orange is a bright, extremely light red and appears almost pinkish in contrast with darker colors. It has incredible tinting strength and opacity. The synthetic form of Mars Orange is made from iron oxides and is cleaner, brighter, and denser than its ochre-based counterparts.

• Permanence

  Mars Orange has excellent permanence and lightfastness.

• Toxicity

  Mars Orange has no significant hazards.

• History

  The word Mars refers to the Roman god of iron and war. Mars Orange has been manufactured as a pigment since the 17th century.

• Pigment Name
  PG50-Cobalt Green
• Pigment type
  inorganic
• Chemical Name
  cobalt titanium oxide
• Chemical Formula
  Co2TiO4
• Properties

  Cobalt Titanium Oxide is a low intensity color with a weak tinting strength, similar to Cobalt Blue. It has an average to fast drying time.

• Permanence

  Cobalt Green has excellent permanence and lightfastness.

• Toxicity

  Cobalt Green is considered toxic due to its cobalt component. Do not breathe its dust.

• History

  Since ancient times, smalt blue has been used to color glass and ceramics. Cobalt salts, which give smalt its characteristic blue color, were identified in the 18th century. Techniques for manufacturing various cobalt salts, offering a range of blues and greens, were developed in the 19th century.

• Pigment Name
  PY74-Hansa Yellow
• Pigment type
  monoazo
• Chemical Name
  C18H18N4O6
• Chemical Formula
  C18H18N4O6
• Properties

  Pigment PY74 is one of the most commercially important pigments of the Hansa Yellow group, considered superior to many others in its class based on both tinting strength and lightfastness. Several PY74 grades with different particle sizes are available. Grades with finer particle size are more brilliant and transparent. Pigment PY74 ranges from reddish yellow to greenish yellow, with temperature shifts from cool to warm hues. It has high tinting strength and average to slow drying time.

• Permanence

  This Hansa Yellow has better lightfastness that other yellow monoazo pigments, particularly in the darker shades.

• Toxicity

  Hansa Yellow has no significant acute hazards, though its chronic hazards have not been well studied.

• History

  Hansa Yellows were first made in Germany just before WW1 from a series of synthetic dyestuffs called Pigment Yellow. They were intended to be a synthetic replacement for Cadmium Yellow.

No files available