Indanthrone blue

Indanthrone blue, also known as indanthrene blue, is a synthetic blue dye that is used in the production of various products, including textiles, plastics, and inks. It is known for its excellent lightfastness and weather resistance, making it a popular choice for outdoor applications.

Etymology

The name "indanthrone" is derived from the chemical compound indanthrene, which is used in the production of the dye. The term "indanthrene" itself is a combination of "indigo" and "anthracene", reflecting the dye's blue color and its chemical structure, respectively.

History

Indanthrone blue was first synthesized in the early 20th century by the German company BASF. It was initially used in the textile industry, but its applications have since expanded to include plastics, inks, and other materials.

Properties

Indanthrone blue is known for its excellent lightfastness, meaning it does not fade when exposed to light. It also has good weather resistance, making it suitable for outdoor applications. The dye is insoluble in water and most organic solvents, and it has a high melting point, making it stable under a wide range of conditions.

Applications

Indanthrone blue is used in a variety of industries. In the textile industry, it is used to dye fabrics a deep blue color. It is also used in the production of plastics, where it provides a stable, lightfast color. In the printing industry, indanthrone blue is used in inks for its excellent color stability and resistance to fading.

Health and safety

Like all dyes, indanthrone blue should be handled with care. It can cause skin and eye irritation, and prolonged exposure can lead to more serious health effects. Always follow safety guidelines when handling this or any other chemical substance.

See also

• Dye
• Textile industry
• Plastic industry
• Printing industry

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