Chromium Nitrate
1. Product Overview
Chromium Nitrate, also known as Chromium(III) Nitrate or Chromium Nitrate Nonahydrate, is an important water-soluble trivalent chromium salt with the molecular formula Cr(NO₃)₃·9H₂O and CAS No. 7789-02-8.
Dongzheng Chemical is a specialized Chromium Nitrate manufacturer in China with nearly 30 years of experience in chromium chemicals. We manufacture industrial-grade Chromium Nitrate for customers requiring stable chromium content, controlled impurities and consistent batch quality.
Chromium Nitrate provides a soluble source of trivalent chromium and is used in applications such as metal surface treatment, chromium-containing catalyst preparation, chemical synthesis, ceramics, glass and other specialty industrial processes.
Basic Product Information
| Item | Information |
|---|---|
| Product Name | Chromium Nitrate |
| Chemical Name | Chromium(III) Nitrate Nonahydrate |
| Alternative Name | Chromic Nitrate Nonahydrate |
| CAS No. | 7789-02-8 |
| Molecular Formula | Cr(NO₃)₃·9H₂O |
| Molecular Weight | 400.15 g/mol |
| Chromium Valence | Cr(III) / Trivalent Chromium |
| Product Form | Crystalline Material |
| Solubility | Soluble in Water |
| Product Category | Trivalent Chromium Salt |
2. Product Specifications
Dongzheng Chemical controls the quality of Chromium Nitrate through batch inspection and finished-product testing. The following specifications are based on our current industrial product standard.
| Test Item | Specification |
| Chromium Nitrate, Cr(NO₃)₃·9H₂O | ≥ 98.0% |
| Chromium (Cr) | ≥ 12.73% |
| Chloride (Cl⁻) | ≤ 0.01% |
| Sulfate (SO₄²⁻) | ≤ 0.02% |
| Hexavalent Chromium (Cr⁶⁺) | ≤ 0.001% |
| Iron (Fe) | ≤ 0.01% |
| Aluminum (Al) | ≤ 0.05% |
| Water Insoluble Matter | ≤ 0.02% |
| pH (5% Aqueous Solution) | 2.0–3.0 |
| Melting Point | 65–67°C |
Inspection Standard: HG 3-936-76
Actual test results are provided on the Certificate of Analysis (COA) for each production batch. Specific quality requirements can also be discussed according to the customer's application.
3. Physical & Chemical Properties
Chromium(III) Nitrate Nonahydrate is a hydrated trivalent chromium compound with good solubility in water. Its water solubility makes it suitable for processes requiring chromium to be introduced into aqueous formulations or reaction systems.
The product contains chromium in the +3 oxidation state and is commonly used as a chromium source for the preparation of chromium-containing compounds, catalysts and functional materials.
Dongzheng Chromium Nitrate is manufactured with strict control of impurities such as chloride, sulfate, iron, aluminum and hexavalent chromium.
The low specified level of Cr⁶⁺ ≤0.001% is an important quality parameter for customers requiring controlled trivalent chromium raw materials.
4. Applications
Metal Surface Treatment
Chromium Nitrate can be used as a soluble trivalent chromium source in selected metal surface treatment and chromium-based conversion formulations.
The required Chromium Nitrate specification and concentration depend on the formulation, substrate and treatment process. Customers are encouraged to confirm technical requirements before industrial use.
Catalyst Preparation
Chromium(III) Nitrate is widely used as a chromium precursor in the preparation of chromium-containing catalysts and catalyst materials.
Because of its good water solubility, Chromium Nitrate can be conveniently introduced into impregnation, precipitation and other catalyst preparation processes.
Chemical Synthesis
Chromium Nitrate can be used as a starting material for the preparation of other chromium compounds and as a chromium source in specialty inorganic and organic synthesis.
Ceramics and Glass
Chromium compounds are used in selected ceramic, glaze and glass processes where chromium is required as a functional or coloring component.
Chromium Nitrate provides a soluble chromium source suitable for certain preparation and manufacturing systems.
Advanced Materials
Chromium(III) Nitrate can also be used as a chromium precursor in the preparation of chromium oxide and selected chromium-containing functional materials.
Application conditions and product specifications should be confirmed according to the customer's production process.
5. Packaging & Storage
Packaging
Dongzheng Chemical can provide industrial packaging suitable for domestic and international transportation.
Packaging can be arranged according to:
Product quantity
Customer requirements
Export transportation
Pallet requirements
Destination market
Customized packaging for bulk orders can be discussed before order confirmation.
Storage
Chromium Nitrate should be stored in a cool, dry and well-ventilated place.
Keep packages securely closed and protect the product from moisture, excessive heat and incompatible materials.
Handling, transportation and storage should always follow the latest Safety Data Sheet (SDS) and applicable regulations.
6. Quality Control & Technical Documents
Dongzheng Chemical has established a quality management system covering raw material inspection, production control, finished-product testing and batch traceability.
Each batch of Chromium Nitrate is inspected according to the applicable specification before shipment.
Technical and quality documents available according to customer and order requirements include:
Certificate of Analysis (COA)
Safety Data Sheet (SDS)
Product Specification
Technical Data
Packing Information
Export Documentation
Dongzheng Chemical is certified to ISO 9001, ISO 14001 and ISO 45001, covering quality management, environmental management, and occupational health and safety management.
Our quality control focuses on consistent chromium content, controlled impurities and reliable batch-to-batch performance.
7. Why Choose Dongzheng Chromium Nitrate?
Nearly 30 Years of Chromium Chemical Experience
Dongzheng Chemical has focused on chromium chemicals for nearly 30 years and has accumulated extensive experience in production, quality control and industrial applications.
Specialized Trivalent Chromium Salt Manufacturer
Chromium Nitrate is part of our core trivalent chromium salt product line, together with Chromium Chloride, Chromium Acetate, Chromium Formate and Chromium Fluoride.
Controlled Product Quality
Key parameters such as Chromium Nitrate content, Cr content, chloride, sulfate, iron, aluminum and hexavalent chromium are controlled according to product specifications.
Batch COA Available
Each shipment can be supported by a Certificate of Analysis showing actual batch test results.
Global Supply
Dongzheng Chemical serves customers in China and international markets with export packaging, technical documentation and shipment support.
Technical Communication
Different applications may require different quality parameters. Our team can discuss product specifications, packaging and application requirements before order confirmation.
8. Frequently Asked Questions
What is Chromium Nitrate?
Chromium Nitrate is a trivalent chromium compound commonly supplied as Chromium(III) Nitrate Nonahydrate, Cr(NO₃)₃·9H₂O.
What is the CAS number of Chromium Nitrate?
The CAS number of Chromium(III) Nitrate Nonahydrate is 7789-02-8.
What is the Chromium content of Dongzheng Chromium Nitrate?
Our current specification requires Chromium (Cr) ≥12.73%.
What is the Chromium Nitrate purity?
The specification for Cr(NO₃)₃·9H₂O is ≥98.0%.
What is the specification for hexavalent chromium?
The current specification controls Cr⁶⁺ at ≤0.001%.
What is Chromium Nitrate used for?
Chromium Nitrate is used as a soluble trivalent chromium source in applications including metal surface treatment, catalyst preparation, chemical synthesis, ceramics, glass and the preparation of chromium-containing materials.
Can you provide a COA and SDS?
Yes. COA, SDS, product specifications and related technical documents can be provided according to product and order requirements.
Can Dongzheng provide customized specifications?
Specific quality parameters, packaging and other technical requirements can be discussed according to the customer's application and order quantity.
Request a Quote
Looking for a reliable Chromium Nitrate manufacturer and supplier in China?
Please provide the following information when sending your inquiry:
Required product specification
Order quantity
Application
Destination country or port
Packaging requirements
Required delivery schedule
Dongzheng Chemical will review your requirements and provide suitable product information, technical documentation and quotation.
