2475-31-2 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2475-31-2 |
| Product name | 2475-31-2 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Reagent Grade |
| Packaging | 25KG/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 2475-31-2
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 2475-31-2 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 2475-31-2
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Used as a dye intermediate in the synthesis of indigo dyes | Prepared via bromination and applied in subsequent coupling or reduction processes |
| Analytical Chemistry | Employed as a redox indicator | Utilized in titration analysis to signal the endpoint through color change (yellow in oxidized form, colorless in reduced form) |
| Research | Used as a model compound in photochemical and electrochemical studies | Applied in laboratory investigations of electron transfer processes and photochromic behavior |
| Educational Experiments | Demonstrates color changes in redox reactions | Solution prepared for teaching experiments to illustrate reversible redox-induced coloration |
Manufacturing Quality Control of 2475-31-2
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies bromothymol blue concentration via absorbance at characteristic wavelength (e.g., 617 nm) using Beer-Lambert law. |
| Moisture Content | Karl Fischer Titration | Determines water content by coulometric or volumetric titration with iodine generated in situ from KF reagent. |
| Residue on Ignition | Gravimetric Analysis | Measures non-volatile inorganic impurities by weighing residue after high-temperature ashing. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals by atomization and measurement of light absorption at element-specific wavelengths. |
| Chloride Impurity | Potentiometric Titration | Detects chloride ions using silver nitrate titrant and silver/silver chloride indicator electrode. |
| Sulfate Impurity | Barium Sulfate Gravimetry | Precipitates sulfate as BaSO4 and determines mass after filtration and drying. |
| pH of Aqueous Solution | pH Potentiometry | Measures hydrogen ion activity in a standardized aqueous suspension using calibrated pH electrode. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separates and quantifies residual solvents and volatile organics using flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Analyzes size distribution of solid particles in suspension based on angular scattering intensity of laser beam. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid transitions to liquid, indicating purity and identity. |
| Related Substances | High Performance Liquid Chromatography (HPLC-UV) | Separates and quantifies structurally related impurities using reversed-phase column and UV detection. |
| Bulk Density | Tap Density Measurement | Determines mass per unit volume of powder after controlled tapping in standardized cylinder. |
Technical Specifications of 2475-31-2
| Test Item | Specification |
|---|---|
| Appearance | Dark blue crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Melting Point | 235-240°C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Soluble in dimethylformamide; practically insoluble in water |
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 2475-31-2
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 2475-31-2
Industrial 2475-31-2 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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