Chromium Nitrate Nonahydrate CAS 7789-02-8
Molecular Formula: Cr(NO3) 3·9H2O
Molecular Weight: 400.15
Physical and chemical properties: Chromium nitrate nonahydrate is dark purple red crystal, easy to moisture, soluble in water, soluble in ethanol, acetone and inorganic acids, its aqueous solution is green when heated, and then quickly changed to red and purple after cooling. decomposed when heated to 125.5℃, melting point 60℃. corrosive and can cause burns. Contact with combustible materials can cause combustion.
Applications and Usages: Used in the preparation of chromium-containing catalysts, printing and dyeing industry as mordant, glass and ceramic color glaze and corrosion inhibitor.
- Product Description
Chromium Nitrate Nonahydrate (CAS 7789-02-8): High-Purity & Customizable Solutions
Chromium Nitrate Nonahydrate CAS 7789-02-8 — Chromium nitrate nonahydrate — is a versatile compound essential for industries requiring precision in catalysis, surface treatment, and corrosion inhibition. At Yunli Chemical, we specialize in producing chromium nitrate with ultra-low impurities (Fe ≤30ppm), customizable pH (5.0–7.0), and flexible solid/liquid forms. With 18+ years of expertise, we've become a trusted partner for global manufacturers transitioning to eco-friendly, high-performance solutions.
Key Parameters & Unique Advantages
- Purity: 98%–99.9%
- Forms: Solid crystals or liquid solutions
- Customization: Adjustable Fe/Cl⁻ levels, pH stability (±0.2)
- Eco-Compliance: REACH, RoHS, ISO 9001 certified
- MOQ: 1000kg
Industry-Specific Applications of Chromium Nitrate (CAS 7789-02-8)
1. Catalysts & Chemical Synthesis
Chromium Nitrate Nonahydrate CAS 7789-02-8 is critical in manufacturing methanol and hydrogenation catalysts. Its pH stability ensures optimal catalytic activity, while low alkali metal impurities (<50ppm) extend catalyst lifespan.
2. Metal Surface Treatment
Replace hexavalent chromium with trivalent chromium solutions compliant with RoHS/REACH. Our chromium nitrate prevents sludge formation in phosphating baths, offering 99.9% toxicity reduction for eco-friendly electroplating.
3. Corrosion Inhibition
Used in winter concrete additives and steel coatings, our product provides dual anti-freeze and anti-corrosion properties. Custom packaging (25kg bags/IBC tanks) ensures moisture resistance for hygroscopic applications.
4. Specialty Chemicals
Pharmaceutical-grade chromium nitrate supports API synthesis with ≤0.1% residual HNO₃, meeting USP/EP standards for trace metal limits.
Technical Specifications
| Property | Value | |
|---|---|---|
| CAS Number | 7789-02-8 | |
| Molecular Formula | Cr(NO₃)₃·9H₂O | |
| Appearance | Dark purple-red crystals | |
| Solubility | 580 g/L (water, 20°C) | |
| Storage | Cool, dry, away from combustibles | |
| Packaging | 25kg drums, 1-ton IBCs |
Customization & Sustainability
Tailored Solutions
- Adjust impurity profiles (Fe, Cl⁻, Pb ≤10ppm)
- Convert solid to liquid forms to eliminate dissolution steps
- Co-production services for catalyst OEMs
Closed-Loop Production
Our proprietary systems recycle 95% of wastewater into sodium nitrate and convert NOx emissions into marketable byproducts, reducing your environmental liability.
Why Partner With Yunli Chemical?
1. 60+ Nitrate Portfolio: Source chromium nitrate and related compounds (e.g., zinc, calcium nitrates) in one order.
2. Rapid Response: 24/7 technical support and R&D collaboration for custom formulations.
3. Global Logistics: Pre-certified shipments to EU, Asia, and North America with ≤15-day lead times.
FAQ
1. Product Performance
Q: How does chromium nitrate enhance trivalent chromium plating baths?
A: It stabilizes pH levels and improves coating adhesion, achieving hardness comparable to hexavalent chromium processes without toxicity.
Q: Can you supply liquid chromium nitrate for concrete admixtures?
A: Yes. Our liquid form eliminates onsite dissolution, saving 30% energy costs in winter construction projects.
2. Compliance & Safety
Q: Is your chromium nitrate REACH-registered for EU electroplating facilities?
A: Absolutely. We provide full SDS, TSCA, and REACH documentation to ensure compliance.
Q: How is thermal stability ensured for high-temperature applications?
A: Our optimized blends withstand up to 125°C without decomposition, verified via DSC testing.
3. Custom Orders
Q: Do you accept small batches for R&D trials?
A: Yes. We provide samples from 100g upwards, with confidential formulation services.
Get Your Free Sample Today!
Optimize your processes with Chromium Nitrate Nonahydrate CAS 7789-02-8 tailored to your needs.
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