Understanding the fundamental chemistry of industrial materials is essential for professionals in procurement, R&D, and production. At NINGBO INNO PHARMCHEM CO.,LTD., we pride ourselves on offering high-quality chemical intermediates and pigments, such as Pigment Yellow 42 (CAS 51274-00-1). This synthetic iron oxide pigment is a cornerstone in many industries due to its unique chemical properties and synthesis process. As a dedicated manufacturer and supplier, we aim to provide clarity on what makes this pigment so valuable.

Pigment Yellow 42, chemically represented as Fe₂O₃·H₂O (iron(III) oxide-hydroxide), is a hydrated iron oxide. Its typical form is a fine yellow powder. The key to its industrial appeal lies in its inherent stability. It is insoluble in water and organic solvents, which is crucial for applications where bleeding or migration of color is undesirable. While it shows slight solubility in acids, it readily dissolves in concentrated hydrochloric acid, a characteristic common to iron oxides. This controlled solubility is essential during its manufacturing process, which typically involves the precipitation of ferric oxide hydroxide followed by purification stages such as washing, drying, and milling.

The synthesis process for Pigment Yellow 42 typically starts with iron salts, such as ferrous sulfate, which are then oxidized and hydrolyzed under controlled conditions to precipitate the hydrated iron oxide. The precise control over reaction parameters like temperature, pH, and reactant concentrations is what allows manufacturers like us to achieve consistent particle size, shape, and color intensity. This meticulous manufacturing approach ensures that the pigment possesses high opacity, excellent tinting strength, and outstanding light and weather fastness – properties that are highly sought after by formulators.

For procurement managers and research scientists, knowing these chemical properties helps in selecting the right pigment for specific applications. The thermal stability of Pigment Yellow 42, with a melting point often cited around 1538°C (though decomposition can occur at lower temperatures with loss of water), makes it suitable for processes that involve moderate heat. Its compatibility with a wide range of binders and vehicles in paints and coatings, as well as its inertness in plastics and rubber, further underscore its versatility.

NINGBO INNO PHARMCHEM CO.,LTD. is a leading manufacturer and supplier committed to providing high-purity Pigment Yellow 42. We offer competitive pricing and ensure a reliable supply chain for businesses worldwide. We encourage you to buy this essential pigment from us and experience the difference that quality manufacturing and dedicated service can make. For detailed specifications, quotes, or samples, please contact our sales team.