Chromic Acid (Chromium Trioxide)
CrO3
1333-82-0
| # | Parameter | Value |
|---|---|---|
| 1 | Appearance | Dark red granular solid |
| 2 | Odor | Odorless |
| 3 | Solubility | Freely soluble in water |
| 4 | Molecular Weight | 99.99 g/mol |
| 5 | Melting Point | 197°C (decomposes) |
| 6 | Density | ~2.70 g/cm³ |
| 7 | Purity | ≥ 99.7% |
It is primarily used in metal surface treatment, including cleaning, passivation, and preparation before coating or plating.
It is formed by dissolving chromic anhydride in water, creating a reactive oxidizing solution used in controlled applications.
It ensures clean, stable surfaces and improves adhesion and corrosion resistance in demanding environments.
Regulations, logistics, concentration, and supply chain conditions all contribute to the final cost.
It requires controlled handling due to its oxidizing nature, but standard industrial safety procedures make it manageable.
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