Overview
Chrome Yellow Deep is a synthetic inorganic pigment composed primarily of lead chromate (PbCrO4). It is valued for its intense yellow hue, high opacity, and durability in industrial applications. Historically used in artist paints, its modern applications prioritize industrial uses due to toxicity concerns. The pigment's vibrant color and chemical stability make it a popular choice for coatings, plastics, and ceramics. However, regulatory restrictions on lead and chromium compounds have led to declining use in consumer products, with alternatives like organic pigments gaining traction.
Physical and Chemical Properties
Chrome Yellow Deep appears as a bright yellow powder with a density of 6.12 g/cm³. It is insoluble in water but reacts with strong acids, releasing toxic chromium compounds. The pigment decomposes at 844°C, making it unsuitable for high-temperature applications. Its key properties include excellent lightfastness (resistance to fading under UV exposure) and chemical resistance to alkalis and mild acids. These traits make it ideal for outdoor coatings and industrial environments where color retention is critical.
Main Applications
The primary use of Chrome Yellow Deep is in industrial coatings, including automotive primers and corrosion-resistant paints. Its opacity and adhesion properties enhance coverage and durability. The pigment is also used in plastics for toys and packaging, though this application is declining due to regulations. In ceramics, it serves as a colorant for glazes and tiles. Specialty inks, such as those for security printing, leverage its chemical stability. Niche uses include coloring rubber and paper products, though alternatives are increasingly preferred.
Safety and Storage
Chrome Yellow Deep is classified as toxic due to its lead and hexavalent chromium content. Inhalation or ingestion can cause severe health issues, including cancer and organ damage. Proper PPE (gloves, respirators) is mandatory during handling. Storage requires a dry, ventilated area away from acids and reducing agents to prevent hazardous reactions. Spills must be contained and disposed of as hazardous waste. Compliance with local regulations (e.g., OSHA, EU CLP) is essential for workplace safety.
B2B Procurement Guide
When sourcing Chrome Yellow Deep, prioritize suppliers with ISO 9001 certification and REACH compliance documentation. Bulk pricing typically ranges from $5-$15/kg, with discounts for quantities above 1 ton. Confirm batch-specific test reports for purity (≥98% common) and heavy metal content. Logistics should ensure moisture-proof packaging (25-50 kg bags or drums). For global shipments, verify import restrictions—some countries ban lead chromate pigments entirely. Consider alternatives like bismuth vanadate for eco-friendly projects.
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