Complaint
Pigment Yellow 181, also known as PY181 or Pigment Yellow H3R, is a high-performance organic pigment widely used in various industries. This reddish-yellow powder offers excellent heat resistance and lightfastness, making it suitable for demanding applications.
The chemical formula of Pigment Yellow 181 is C25H21N7O5, with a molecular weight of 499.48. Its CAS number is 74441-05-7, and it has an EINECS number of 277-873-1. The pigment appears as a yellow powder with a reddish shade and demonstrates remarkable heat resistance up to 300°C.
Key properties of Pigment Yellow 181 include a lightfastness rating of 7-8, acid and alkali resistance of 5, and fastness to bleeding of 5. It has an oil absorption rate of 35-40% and a specific surface area of 26 m²/g. The pigment's density is 1.50 g/cm³, with a maximum residue on 80 mesh of 5.0%.
Pigment Yellow 181 finds extensive use in plastics, fibers, rubber, printing inks, paints, and coatings. Its excellent performance characteristics make it a preferred choice for applications requiring durability and color stability. The pigment's tinting strength ranges between 100-105%, ensuring consistent and vibrant coloration in various formulations.
Received the Pigment Yellow 181 (PY181) in good condition. Properties and applications seem to be accurate.
From United States，2025-01-12 22:25