Pigment Yellow 3 CAS# 6486-23-3

Pigment Yellow 3, molecular formula: C_{16} H_{12} Cl_{2} N_{4} O_{4}
Molecular weight: 395.20
Appearance: green light yellow powder
Melting point: 256-258 ºC
Density: 1.49g/cm³
Solubility: slightly soluble in ethanol, acetone and benzene; soluble in organic solvents such as ethanol and acetone when heated; yellow solution in concentrated sulfuric acid, primrose yellow when diluted; color remains unchanged in concentrated nitric acid, hydrochloric acid and dilute sodium hydroxide.
This pigment has bright color and good light resistance and heat resistance. Its light resistance is level 7, stable at 150℃ for 20 minutes, acid resistance and alkali resistance are both level 5, and oil resistance is level 4-5.
It has a wide range of uses and can be used for coloring coatings, inks, coating printing, stationery and plastic products. There are 84 dosage forms of this product on the market, which give a strong green-yellow color and can be combined with blue pigments (such as copper phthalocyanine cupc) to create green tones. It has a low surface area (some products have a specific surface area of ​​8m²/g) and high hiding power, and excellent light fastness.