Iconography Pigment No 42 - Cadmium Orange - 50gr

• Paco code
  7102406
• No.
  42
• Manufacturer
  Sennelier
• Product Type
  Dry Pigments
• Color Name
  Καδμίου Πορτοκαλί O FR ***
• Barcode
  0000004200505
• Color Family
  Yellow & Orange
• Size
  50gr
• SKU
  SKONES-42-50
• Description
  Dry Pigment

Πληροφορίες Χρωστικής

• Pigment Name
  PO20-Cadmium Orange
• Pigment type
  cadmium
• Chemical Name
  cadmium sulfide and cadmium selenide
• Chemical Formula
  CdS x CdSe
• Properties

  Cadmium Orange was the first true orange and was made by mixing Cadmium Yellow with Cadmium Red. It is a pure hue with excellent opacity and low toxicity compared with its predecessors. It also has very high hiding power. The greatest tinting strengths are possessed by the deeper shades. Only the highest grades contain pure Cadmium Orange without barium mixed in it. Cadmium pigments have been partially replaced by azo pigments, which are similar in lightfasness to the cadmium colors, cheaper, and non-toxic.

• Permanence

  Cadmium Orange has excellent permanence, but like many cadmium pigments, it will fade in fresco or mural painting. The deeper varieties of this pigment are the most permanent. The paler varieties have been known to fade when exposed to sunlight.

• Toxicity

  Cadmium Orange is a known human carcinogen. It is extremely toxic if inhaled and slightly toxic if ingested.

• History

  Cadmiums get their names from the Latin word cadmia, meaning zinc ore calamine, and the Greek word kadmeia, meaning Cadmean earth first found near Thebes, the city founded by the Phoenician prince Cadmus. Metallic cadmium was discovered in 1817 by Friedrich Strohmeyer. It was used sparingly after its discovery due to the scarcity of cadmium metal.

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