Direct Red 23 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 3441-14-3 |
| Product name | Direct Red 23 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial 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 Direct Red 23
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Direct Red 23 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Direct Red 23
| Industry | Application | Process |
|---|---|---|
| Textiles | Red dyeing of cotton fibers and cotton-blend fabrics | Direct dyeing in aqueous solution at ambient or elevated temperature, with adsorption onto fiber surfaces via intermolecular forces |
| Leather | Red coloring of leather | Direct application via coating or immersion onto leather surfaces, typically under acidic conditions to enhance dye fixation |
| Paper | Red coloring of paper | Direct addition to pulp or surface application for production of colored paper or label stock |
| Inks | Red pigment component in water-based inks | Dissolved in aqueous carriers for inkjet or ballpoint pen ink formulations |
| Printing | Colorant in gravure or screen printing inks | Formulated with resins and solvents into inks for packaging materials or textile printing |
Manufacturing Quality Control of Direct Red 23
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Dye Content) | UV-Vis Spectrophotometry | Quantification based on absorbance at lambda-max in standardized solvent, using molar absorptivity or calibration curve. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration with iodine reagent to determine water content by stoichiometric reaction. |
| Inorganic Ash | Gravimetric Analysis (Ignition Method) | Sample ignited at 550 C to oxidize organics; residual inorganic ash weighed after cooling. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Multi-element quantification via atomic emission intensity of plasma-excited atoms in digested sample solution. |
| Chloride Ion | Potentiometric Titration with AgNO3 | Titration using silver nitrate and silver indicator electrode; endpoint detected by potential change. |
| pH (1% aqueous solution) | pH Meter Measurement | Direct measurement of hydrogen ion activity in aqueous suspension using calibrated glass electrode. |
| Water Solubility | Gravimetric Filtration Method | Insoluble residue separated by hot filtration and dried; solubility calculated from mass loss. |
| Organic Impurities (Related Substances) | HPLC-UV | Separation on reversed-phase column followed by UV detection and relative quantification against reference standards. |
| Sulfate Content | Gravimetric Precipitation as BaSO4 | Precipitation with barium chloride in acidic medium; BaSO4 filtered, dried, and weighed. |
| Iron Content | Atomic Absorption Spectroscopy (AAS) | Quantification of Fe atoms by absorption of specific wavelength light in atomized sample solution. |
| Bulk Density | ASTM D1895 Method A | Mass of powder measured in a calibrated cylinder after controlled tapping; density = mass/volume. |
| Particle Size Distribution | Laser Diffraction | Analysis of angular scattering pattern of laser beam passed through dispersed sample to calculate size distribution. |
Technical Specifications of Direct Red 23
| Test Item | Specification |
|---|---|
| Appearance | Dark Red Powder |
| Purity | >=98.0% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.3% |
| Solubility | Freely soluble in water; clear, red solution |
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 Direct Red 23
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Direct Red 23
Packaging of Direct Red 23
Industrial Direct Red 23 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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