Calcium chromate powder is an inorganic chromate compound typically appearing as a yellow or orange-yellow crystalline powder. It serves primarily as a high-performance anti-corrosion pigment, high-temperature material additive, and oxidizing agent, playing an irreplaceable role in specific industrial sectors.
We supply high-purity calcium chromate powder meeting industry standards, with particle size and packaging specifications customizable to client requirements. For specific technical specifications or procurement inquiries, please contact us immediately.
High purity with stable chromium content
Excellent high-temperature resistance and anti-corrosion properties
Vibrant color with strong tinting strength
Chemically stable with controllable reactivity
Anti-corrosion Coatings & Pigments: As a core component of rust-preventive pigments, it is used in formulating primers and heavy-duty anti-corrosion coatings. It effectively passivates metal surfaces, significantly delaying the corrosion process of substrates like steel.
High-Temperature Ceramics & Refractories: Serves as an additive in the production of specialty ceramics and refractory bricks, enhancing the materials’ high-temperature strength, thermal stability, and resistance to slag erosion.
Oxidizing Agents and Synthetic Chemistry: Serves as an oxidizing agent in organic synthesis and certain inorganic chemical reactions, participating in the preparation of other high-valent chromium compounds or specific intermediates.
Fireworks and Pyrotechnics Manufacturing: Utilized for its ability to produce specific colors at high temperatures, functioning as an oxidizing agent and color developer to create orange or red pyrotechnic effects.
Q1: How does it function as a corrosion inhibitor in coatings?
A1: Its corrosion inhibition mechanism primarily involves the gradual release of chromate ions, forming a dense passivation film on metal surfaces. This effectively isolates moisture and corrosive ions, preventing electrochemical corrosion.
Q2: What is the product’s temperature tolerance? At what maximum temperature does it remain stable?
A2: Calcium chromate exhibits excellent thermal stability with a high decomposition temperature in air. It typically maintains long-term stability below 800°C. Refer to the product technical data sheet for specific details.
Q3: Can you provide low-dust or pelletized products?
A3: Yes. To enhance operational safety and process flowability, we offer specially treated low-dust powders or microsphere pellets to reduce exposure risks during production.
Each batch is supplied with:
Certificate of Analysis (COA)
Technical Data Sheet (TDS)
Material Safety Data Sheet (MSDS)
Third-party testing reports available upon request
We are not just a supplier of chromate products, but your trusted partner for safety and compliance. We understand the unique nature of these products and implement rigorous quality and Environmental, Health, and Safety (EHS) management systems throughout the entire process—from raw material sourcing to production.
Molecular Formula: CaCrO₄
Molecular Weight: 152.11 g/mol
Appearance: Yellow powder
Density: 3.10 g/cm³
Melting Point: 1,010 °C
Crystal Structure: Monoclinic
Signal word:
Danger
Hazard statements:
H302 Harmful if swallowed.
H350 May cause cancer.
H410 Very toxic to aquatic life with long lasting effects.
Inner Packaging: Double-layer sealed plastic bags or aluminum foil bags for moisture and leakage protection.
Outer Packaging: Iron drum or fiber drum, depending on the weight, with reinforced sealed lid.
Hazard Packaging: UN-certified packaging compliant with regulations for hazardous materials transportation.
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