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Chromium iii phosphate is an important inorganic compound with the mf CrPO₄ and mw146.97. Its molecular structure comprises trivalent chromium ions (Cr³⁺) and phosphate ions (PO₄³⁻) bonded via ionic bonds, forming a stable crystalline structure. It remains stable at ambient temperatures but gradually loses its crystalline water upon heating to elevated temperatures (e.g., 800°C), ultimately decomposing into Cr₂O₃ and P₂O₅. Possessing chemical stability and multiple hydrated forms, it finds extensive applications in catalysis, materials science, and surface treatment.
| Item | Specification |
| Melting point | >1800°C |
| Density | 2.94 g/cm³ (32.5°C) |
| Solubility | Practically insoluble in water, but readily soluble in strong acids (e.g., hydrochloric acid, nitric acid) and strong alkali solutions. |
Pigments and Coatings
– Serves as a green or blue pigment extensively used in paints, coatings, and ceramic glazes, providing enduring colour stability.
– Its rust-inhibiting properties make it a vital component in metal primers, particularly suited for aerospace and automotive industries.
Functions as a catalyst for dehydrogenation reactions (e.g., hydrocarbon dehydrogenation) and as a carrier for olefin polymerisation reactions, enhancing catalytic efficiency.
As cathode material in cadmium-nickel and nickel-cadmium batteries, it enhances battery performance.
Used in ceramic glazes and glass colouring to produce distinctive green or blue effects while improving high-temperature resistance and mechanical strength.
Employed as an additive in electroplating to improve coating adhesion and corrosion resistance, and as a primer material for metal surface pre-treatment.
Jinan Jinbang Chemical Co., Ltd., strategically located within the New Materials Industrial Park in Tianqiao District, Jinan City, Shandong Province, stands as a prominent chemical innovator since its establishment in 2015. Operating from a modern, expansive 37,500 m² manufacturing facility, we are dedicated to the research & development, production, and global distribution of high-performance chemical solutions.
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