Sennelier Oil Color Rive Gauche 202 Burnt Umber - 200ml

• Product Type
  Oil Paints
• Barcode
  3046450766346
• Color Family
  Brown
• Paco code
  7102588
• No.
  202
• Manufacturer
  Sennelier
• Size
  200ml
• SKU
  SENNEL-N130332.202
• Description
  Oil Paint
• Color Name
  Burnt Umber

Πληροφορίες Χρωστικής

• Pigment Name
  PBk11-Mars Black
• Pigment type
  earth
• Chemical Name
  iron oxides
• Chemical Formula
  FeO or Fe2O3
• Properties

  Mars Black is an opaque black with a strong and cool masstone, a slightly warm tint, and a warm brown undertone. It is not as black as Ivory Black, but it dries more quickly and has three times the tinting strength. Mars Black is normally the only black available in acrylic form and that is safe to over paint. It can be used in all media without reservation and is widely used as an alternative to Lamp Black and Ivory Black.

• Permanence

  Mars Black is very lightfast with excellent permanence.

• Toxicity

  Mars Black has no significant hazards and is the only major black pigment considered non-toxic.

• History

  The word Mars refers to the Roman god of iron and war. Mars Black was developed in the early 20th century from inorganic, synthetic iron oxide.

• 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
  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.

• 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.

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