2,4-Dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-one chromium complex Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 52256-37-8 |
| Product name | 2,4-Dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-5-methyl-2-phenyl-3H-pyrazol-3-one chromium complex |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeMaterial 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) |
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Documents We Provide for 52256-37-8
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 52256-37-8 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 52256-37-8
| Industry | Application | Process |
|---|---|---|
| Plastics Industry | Colorant | Used for coloring plastics such as polyvinyl chloride (PVC) and polystyrene (PS), achieving uniform dispersion via melt compounding or injection molding |
| Ink Industry | Dye | Provides orange hue in solvent-based and printing inks; prepared by dissolving in organic solvents followed by mixing with resin systems |
| Coatings Industry | Pigment Additive | Delivers vibrant orange color in industrial and decorative coatings; incorporated via grinding and dispersion in solvent-based or partially water-based systems |
| Textile Industry | Dyeing Auxiliary (Limited Application) | Acts as a supplementary coloring component in dyeing specific synthetic fibers, typically applied using high-temperature, high-pressure dyeing or carrier dyeing processes |
Manufacturing Quality Control of 52256-37-8
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at characteristic wavelength, calibrated against certified reference standard. |
| Related Substances | HPLC-DAD | Separation and detection of impurities using HPLC coupled with diode array detection for spectral confirmation and relative quantification. |
| Moisture Content | Karl Fischer Titration | Volumetric or coulometric titration based on the reaction of water with iodine and sulfur dioxide in pyridine/methanol medium. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C to combust organic matter, then weighing inorganic residue as sulfate ash. |
| Heavy Metals | ICP-OES | Multi-element quantification after acid digestion by measuring atomic emission intensities at element-specific wavelengths. |
| Chlorinated Impurities | GC-ECD | Detection of organochlorine impurities using gas chromatography with electron capture detection for high sensitivity. |
| pH of Aqueous Solution | Potentiometric Titration | Measurement of hydrogen ion activity in a saturated aqueous suspension using calibrated pH electrode. |
| Solvent Residues | GC-FID | Quantification of residual manufacturing solvents via gas chromatography with flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity patterns to calculate volume-based particle size distribution in dispersed suspension. |
| Bulk Density | Tap Density Measurement | Determination of mass per unit volume after standardized mechanical tapping of a known powder mass in a graduated cylinder. |
| Melting Point | Capillary Melting Point Apparatus | Thermal observation of solid-to-liquid phase transition using controlled heating and visual detection in capillary tube. |
| Color Strength (Tinting Strength) | Reflectance Spectrophotometry | Comparison of reflectance spectra against primary standard to determine relative dyeing power on standardized substrate. |
Technical Specifications of 52256-37-8
| Test Item | Specification |
|---|---|
| Appearance | Orange crystalline powder |
| Purity | >=98.5% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.3% |
| Water Content (KF) | <=0.5% |
| Melting Point | 248-252°C |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Color (APHA/Pt-Co) | Not applicable |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of 52256-37-8
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 52256-37-8
Industrial 52256-37-8 Procurement FAQ
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.
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