Pigment Yellow 34 (PY 34), also known as Chrome Yellow, is an inorganic yellow pigment primarily composed of lead chromate (PbCrO₄).

1. Chemical Information

CAS Number: 1344-37-2

Chemical Formula: PbCrO₄

Molecular Weight: ~323.2 g/mol

Color Index (C.I.): Pigment Yellow 34 (C.I. 77600)

Appearance: Bright yellow powder

Density: ~5.9 g/cm³

Melting Point: Decomposes before melting

Solubility: Insoluble in water, slightly soluble in acids

2. Application: With the acceleration of industrialization, Pigment Yellow 34 has been more widely used in traffic signs, road markings, heavy machinery, and marine coatings. Its high opacity and UV resistance made it one of the most popular yellow pigments at the time.

3. Packing：Pigment Yellow 34 is primarily packaged in 25 kg kraft paper bags or woven plastic bags, which effectively provide moisture and dust protection, ensuring easy transportation and storage. Additionally, we offer customized packaging services, allowing adjustments to packaging specifications and materials according to customer requirements. We also support custom marking to meet the personalized needs of different markets and industries.