Products Description of Pigment Yellow 34 CAS#1344-37-2
Pigment Yellow 34 (CAS# 1344-37-2), chemically recognized as Lead Chromate (PbCrO4⋅PbSO4, MW: ~576.07), is an inorganic yellow pigment valued for its intense chromaticity, opacity, and weatherability. Typically presented as a bright yellow crystalline powder or specialized liquid dispersion, it remains insoluble in aqueous and oil phases while demonstrating solubility in strong acids and alkalis.
Technical Characteristics: Density of ∼1.73g/cm3 at 20°C and a boiling point of 157°C. It exhibits high thermal and light stability under normal conditions, though exposure to sulfur-containing environments or strong alkalis should be avoided to prevent shade alteration.
Safety & Regulatory Compliance: Containing lead and hexavalent chromium compounds, Pigment Yellow 34 is classified as a hazardous chemical. Strict occupational hygiene controls, proper personal protective equipment (PPE), and compliance with regional environmental restrictions are required during handling and storage.
Performance:
It exhibits outstanding durability against heat, light, and weather, maintaining stable and uniform color over long periods.
Applications:
Pigment Yellow 34 is widely used in paints, coatings, and synthetic fibers. It provides a strong yellow tone with excellent opacity and covering ability.
Safety:
Because of its toxic composition, appropriate handling precautions are required. Personal protective equipment is advised, and the product should be kept in a cool, dry area away from incompatible materials.
Technical Specifications:
Density: Around 1.73 g/cm³ at 20°C.
Boiling Point: 157°C.
Solubility: It does not dissolve in water or oils, but it dissolves in strong acids and alkaline solutions.
Stability: It remains stable when stored properly. Contact with sulfur-containing compounds and strong alkalis should be avoided, as they may alter the pigment color.
Product Application of Pigment Yellow 34 CAS#1344-37-2
Renowned for its strong covering capacity and durability, Pigment Yellow 34 serves essential functional roles in industrial coloration:
Paints & Industrial Coatings: Widely incorporated into heavy-duty protective paints, automotive finishes, and architectural coatings where high opacity and exterior lightfastness are critical.
Plastics & Synthetic Polymers: Functions as a robust colorant for thermoplastics and polymer matrices, offering heat-stable pigmentation.
Synthetic Fibers: Applied in melt-spinning and mass-coloration processes for synthetic filaments and textiles.
Storage & Handling Guidelines: Store in tightly sealed containers within a cool, dry, and well-ventilated area, isolated from incompatible or reactive chemicals. Under unopened, recommended conditions, the material maintains a shelf life of 24 months.
