Explore high-purity inorganic salts, reactive metal powders, and specialty fluorinated gases tailored to international manufacturing benchmarks.
Comprehensive metallurgical insight into crystallographic morphology, trace-element extraction, and oxidation-state stability.
Chromium(III) Nitrate, primarily utilized in its nonahydrate form [Cr(NO3)3·9H2O, CAS Registry Number: 7789-02-8], is an indispensable specialty inorganic chemical serving modern catalysis, anti-corrosion chemistry, and advanced surface functionalization. As a premier China Chromium III Nitrate manufacturer and supplier, YANXA (Yanxatech System Industries Limited) engineers this precursor utilizing advanced continuous crystallization and hydrometallurgical purification technologies. By precisely reacting high-purity chromic hydroxide or chromium oxide under tightly controlled stoichiometric conditions with electronics-grade nitric acid, we consistently synthesize dark violet monoclinic crystals exhibiting exceptional chemical purity, guaranteed trivalent state stability, and zero hexavalent chromium (Cr VI) contamination.
The global regulatory climate—dictated by REACH (EU), OSHA (USA), and RoHS compliance directives—demands an absolute transition away from toxic hexavalent chromium compounds toward stable, environmentally benign trivalent chromium chemistry. However, utilizing Chromium III Nitrate in safety-critical sectors, such as high-temperature dehydrogenation catalysts or aerospace-grade conversion coatings, imposes stringent demands on trace-metal limits. Even parts-per-million levels of iron (Fe), sodium (Na), sulfate (SO4), or heavy metals (Pb, Cd) can deactivate petrochemical catalyst matrices or induce microporosity in electroplated passive films. YANXA’s proprietary multi-stage solvent extraction and recrystallization processes ensure an assay of ≥ 98.5% with iron impurities controlled strictly below 20 ppm.
| Analytical Parameter | Industrial Grade | High-Purity Catalyst Grade | Electronic / Surface Treatment Grade | Test Standard |
|---|---|---|---|---|
| Assay [Cr(NO3)3·9H2O] | ≥ 98.0% | ≥ 99.0% | ≥ 99.5% | Redox Titration / ICP-OES |
| Chromium (Cr) Content | ≥ 12.8% | ≥ 13.0% | ≥ 13.05% | Stoichiometric Calculation |
| Iron (Fe) Impurity | ≤ 100 ppm | ≤ 30 ppm | ≤ 10 ppm | AAS / ICP-MS |
| Chloride (Cl) | ≤ 50 ppm | ≤ 20 ppm | ≤ 10 ppm | Turbidimetric Method |
| Sulfate (SO4) | ≤ 100 ppm | ≤ 50 ppm | ≤ 20 ppm | Barium Sulfate Precipitation |
| Water Insoluble Matter | ≤ 0.05% | ≤ 0.01% | ≤ 0.005% | Gravimetric Analysis (105°C) |
| Hexavalent Chromium (Cr VI) | Non-Detectable | Non-Detectable (<1 ppm) | Non-Detectable (<0.5 ppm) | Diphenylcarbazide Spectrophotometry |
Combining primary chemical integration, automated mass synthesis, and advanced regulatory compliance for global B2B procurement.
China operates the world's most concentrated chemical infrastructure for chrome ore refining and synthetic nitric acid production. YANXA leverages dedicated upstream feeds to maintain raw material traceability, neutralizing global commodity price volatility and guaranteeing steady delivery schedules year-round.
Our production facilities utilize automated Distributed Control Systems (DCS) to govern temperature ramping, reaction vessel pH, and crystallization kinetics. Eliminating human error results in identical crystal grain sizing, batch-to-batch compositional consistency, and optimized rapid-dissolution properties.
High continuous throughput paired with cutting-edge internal heat recovery and closed-loop nitric acid recycling lowers the net carbon and financial footprint per metric ton. This enables our enterprise buyers to achieve up to 25–35% direct procurement cost savings compared to European or North American domestic distributors.
Analyzing the pivotal shift from traditional surface metallurgy to next-generation clean-technology catalysts and electronics.
Driven by the European REACH directive banning hexavalent chromium (Cr VI), Chromium III Nitrate serves as the foundational active cation in trivalent passivating formulations for zinc, zinc-nickel plating, and aerospace aluminum alloys.
Essential for preparing supported Cr2O3/Al2O3 dehydrogenation catalysts used in producing propylene and isobutylene. Our ultra-low iron and alkali metal concentrations guarantee prolonged catalytic selectivity and thermal stability.
Utilized as an inorganic chromophore in high-durability architectural ceramics and refractive glassware. Thermal decomposition of Chromium III Nitrate yields atomic-scale Cr2O3 dispersion, offering exceptional color brilliance and scratch resistance.
In specialized technical textiles and leather formulations, trivalent chromium complexes act as robust cross-linking agents, forming coordinative covalent bonds with protein fibers to achieve unyielding wash-fastness and light-resistance.
Mitigating supply disruptions with full Class 5.1 UN certification, hermetic packaging, and customs-audited batch documentation.
Procuring Chromium III Nitrate requires acute awareness of international shipping protocols. Classified under UN 2720, Hazard Class 5.1 (Oxidizing Solids), Packing Group III, transporting this material across transoceanic freight lines demands rigorous container validation, certified inner moisture barriers, and thorough GHS compliance. Without proper export documentation, shipments face devastating delays, fines, or quarantine at western destination ports.
YANXA maintains an unblemished export record across North America, the European Union, Japan, South Korea, and Southeast Asia. We supply comprehensive commercial and technical dossiers with every single batch: including accredited batch Certificates of Analysis (COA), 16-section SDS in regional languages, Technical Data Sheets (TDS), and pre-shipment third-party inspections (SGS, BV, or CIQ). Our packaging line uses double polyethylene inner liners within heavy-duty UN-approved fiber drums or steel-reinforced plastic barrels with nitrogen headspace flushing upon request.
Direct technical answers addressing purity verification, hygroscopic stabilization, and logistics handling.
Chromium III Nitrate Nonahydrate is inherently hygroscopic with a low melting point (approx. 60°C). To eliminate caking and liquefaction during equatorial marine transport, YANXA utilizes multi-layer moisture-barrier foil bags placed within rigid, UN-certified drums. We strictly monitor ambient humidity during packaging and introduce silica or clay desiccant inserts in ocean container linings.
Yes. Many chemical synthesis and surface-treatment plants prefer pre-dissolved liquid Chromium III Nitrate (typically 30% to 50% aqueous solutions) to avoid dust exposure and eliminate dissolution tank downtime. YANXA delivers stabilized, acid-adjusted liquid formulations in 1000L intermediate bulk containers (IBCs) or ISO tank containers directly from our factory.
Every single manufactured production batch undergoes colorimetric screening using Diphenylcarbazide (DPC) spectrophotometry according to EPA 7196A protocols. Our manufacturing facilities maintain physically segregated lines for trivalent chemistry, preventing airborne contamination or cross-contact with hexavalent precursors.
Standard crystal and liquid grades are typically dispatched within 7–12 business days from order confirmation. Customized catalyst grades requiring sub-10 ppm trace-metal verification generally ship within 14–20 days, allowing adequate time for secondary solvent washing and complete ICP-MS validation.
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