Overview
Copper Blue, chemically known as basic copper carbonate, is a synthetic inorganic pigment with a striking blue hue. Historically, it was used as a cheaper alternative to natural azurite in art and decoration. Today, it is widely employed in industrial applications due to its stability and vivid color. This compound is produced through the reaction of copper salts with alkaline carbonates. Its synthetic nature ensures consistent quality, making it a reliable choice for manufacturers. Unlike some organic pigments, Copper Blue is resistant to fading under light exposure, which enhances its longevity in finished products.
Physical and Chemical Properties
Copper Blue appears as a fine, vibrant blue powder with a density of 3.7-4.0 g/cm³. It is insoluble in water but dissolves in acids, forming copper salts. The compound decomposes at around 200°C, releasing carbon dioxide and water. One of its key advantages is its lightfastness, meaning it retains its color even under prolonged exposure to sunlight. This property makes it ideal for outdoor applications, such as architectural coatings. Additionally, it is non-toxic in solid form, though inhalation of dust should be avoided.
Main Applications
Copper Blue is primarily used as a pigment in ceramics, paints, and coatings. Its vibrant color and stability make it a popular choice for decorative arts, including pottery and tile glazes. In the paint industry, it is valued for its opacity and durability. Beyond aesthetics, Copper Blue is also used in antifouling paints for marine applications, where its copper content helps prevent the growth of algae and barnacles on ship hulls. Its non-toxic nature further expands its use in consumer products like children's toys and art supplies.
Safety and Storage
While Copper Blue is generally safe in solid form, precautions should be taken to avoid inhaling its dust, which can irritate the respiratory system. Protective gear, such as masks and gloves, is recommended during handling. Storage conditions are critical to maintaining the pigment's quality. It should be kept in a cool, dry place, away from acids and moisture, which can degrade the compound. Properly sealed containers are essential to prevent contamination and ensure longevity.
B2B Procurement Guide
When procuring Copper Blue, B2B buyers should prioritize suppliers who provide detailed product specifications, including CAS number and purity levels. Requesting a Material Safety Data Sheet (MSDS) is essential to ensure compliance with safety regulations. Price varies based on purity and order volume, with bulk purchases typically offering cost savings. Buyers should also consider the pigment's compatibility with their intended application, as some formulations may require additional testing for optimal performance.
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