About the Company
Pigment-Dnipro is a reliable supplier of pigments and raw materials for paints and coatings
We supply organic and inorganic pigments for the paints and coatings production, as well as for coloring concrete, polymers, rubber, and rubber technical products. We delivery pigments for various industrial applications anywhere in Ukraine.
We offer solutions not only for shade and brightness, but also for stable operation during the production process and throughout the life of the finished product.
Our specialists will help you choose the optimal solution based on your raw materials and production technology, so that your finished products meet quality requirements and maintain consistent color throughout their service life.
Lead chromates are lead chromates (PbCrO4) with lemon-yellow, yellow, orange, or red coloration. Yellow lead chromates are either pure lead chromate (PbCrO4) or an isomorphic mixture of lead chromate and lead sulfate (PbCrO4-n PbSO4). The color depends on the sulfate content — the higher the sulfate proportion, the lighter the pigment. Main advantages: relatively low cost and high hiding power. Main disadvantages: high toxicity, low color purity, and chemical instability. Examples: – when exposed to alkalis, lead chromates turn red due to the formation of basic lead chromates, making them unsuitable for concrete, plaster, and paving tiles; – when exposed to hydrogen sulfide, chromates darken due to the formation of lead sulfide, making them incompatible with sulfur-containing mate..