China Factory Direct
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| CAS number | 12182-82-0 |
| Product name | CHROMIUM (III) OXIDE HYDRATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
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| Electroplating | Primary salt in chromium plating baths for depositing decorative and functional hard chromium coatings | Acts synergistically with sulfate ions in acidic chromium plating electrolytes to electrochemically reduce and deposit chromium onto metallic substrates |
| Pigments | Green inorganic pigment (chrome green) for ceramic glazes, glass coloring, and high-temperature-resistant coatings | Converted to stable Cr₂O₃ crystalline phase via high-temperature calcination; incorporated directly into glaze or glass melts for color development during fusion |
| Catalysis | Oxidation catalyst (e.g., for alcohol-to-aldehyde/ketone conversion) and dehydrogenation catalyst in organic synthesis | Participates in heterogeneous catalytic reactions in solid form, providing active chromium sites; recoverable and regenerable after reaction |
| Refractories | Additive in chromia-alumina spinel refractory bricks and specialty ceramics to enhance high-temperature strength and slag resistance | Cosintered with other oxides (e.g., Al₂O₃) to form a stable spinel structure, uniformly dispersed within the matrix |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Cr2O3 Content | Redox Titration with Ammonium Iron(II) Sulfate | Chromium(VI) is reduced to Cr(III) by excess Fe2+, then back-titrated with standard KMnO4 or K2Cr2O7 solution. |
| Moisture Content | Gravimetric Analysis (Loss on Drying) | Sample is dried at 105 C and mass loss is measured as water content. |
| Insoluble Matter | Gravimetric Filtration | Sample is dissolved in acid, filtered, dried, and weighed to determine insoluble residue. |
| Sulfate (SO4) Content | Barium Sulfate Gravimetry | SO4 is precipitated as BaSO4, filtered, ignited, and weighed. |
| Chloride (Cl) Content | Potentiometric Titration with AgNO3 | Cl- reacts with Ag+ to form AgCl; endpoint detected by silver electrode potential change. |
| Heavy Metals (Pb, Cd, Ni, etc.) | ICP-OES | Elements are atomized and excited in plasma; emitted light intensity quantifies elemental concentration. |
| Iron (Fe) Content | UV-Vis Spectrophotometry (1,10-Phenanthroline) | Fe2+ forms orange-red complex with 1,10-phenanthroline; absorbance measured at ~510 nm. |
| pH of Aqueous Slurry | Potentiometric pH Measurement | pH electrode measures hydrogen ion activity in a defined suspension (e.g., 10% w/w in water). |
| Particle Size Distribution | Laser Diffraction | Scattered laser light pattern from dispersed particles is analyzed to calculate size distribution. |
| Bulk Density | ASTM D1895 Method A (Tapped Density) | Mass of sample divided by volume after standardized tapping; measures packing behavior. |
| Ignition Loss | Gravimetric Analysis (Loss on Ignition) | Sample is heated to 900 C and mass loss quantifies volatile impurities and residual hydrates. |
| Total Chromium (Cr total) | AAS (Flame or Graphite Furnace) | Sample is digested, atomized, and chromium absorption at 357.9 nm is measured. |
| Test Item | Specification |
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| Appearance | Green crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=1.0% |
| Heavy Metals | <=20 ppm |
| Total Impurities | <=1.5% |
| Solubility | Insoluble in water; soluble in strong acids |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.