Yellow Seal Zinc Oxide

Yellow Seal Zinc Oxide is a high-purity, synthetic inorganic white powder manufactured using the French (indirect) process. It is known for its fine particle size, excellent dispersion, and low impurity levels, making it suitable for demanding industrial and specialty applications.

Yellow SealTechnical Specifications

Parameter Specification
ZnO Content (Dry Basis) 99.7% – 99.9% Min
Lead (Pb) 0.001% – 0.002% Max
Cadmium (Cd) 0.0002% – 0.001% Max
Iron (Fe) 0.0003% – 0.0005% Max
Loss on Ignition (105°C) 0.2% – 0.36% Max
Surface Area (BET) 4.0 – 6.7 m²/g
Sieve Residue (325 Mesh) 0.01% – 0.05% Max
Specific Gravity 5.6 g/cm³
Solubility Insoluble in water, soluble in acids

Key Features

High purity with controlled impurity levels

Excellent dispersion and smooth mixing

High surface area for improved reactivity

Superior UV absorption and brightness

Stable and consistent product performance