Ponceau S Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 6226-79-5 |
| Product name | Ponceau S |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial 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 Ponceau S
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Ponceau S Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Ponceau S
| Industry | Application | Process |
|---|---|---|
| Textile Dyeing and Printing | Acid dyeing of wool, silk, nylon, and other fabrics | Applied in acid dyeing processes |
| Biomedical Research | Staining and detection of proteins (e.g., serum proteins, protein bands after electrophoretic separation) | Used in SDS-PAGE gel staining (Ponceau S staining method) |
| Histopathology | Used as a counterstain for cytoplasm or muscle fibers | Applied in tissue section staining techniques |
| Paper Industry | Coloration of paper and pulp | Applied in surface sizing or in-pulp dyeing |
| Ink Manufacturing | Preparation of red writing inks or marking inks | Applied in dissolution and formulation processes |
| Coatings Industry | Coloration of water-based coatings or paints | Applied in pigment dispersion and mixing processes |
Manufacturing Quality Control of Ponceau S
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Ponceau S content) | UV-Vis Spectrophotometry | Quantification based on absorbance at characteristic wavelength (approx. 520 nm) using molar absorptivity and Beer-Lambert law. |
| Loss on Drying | Gravimetric (Thermogravimetric) | Mass loss measured after drying at specified temperature (e.g., 105 C) to constant weight, indicating volatile content. |
| Residue on Ignition | Gravimetric (Sulfated Ash) | Residue mass after high-temperature ignition (e.g., 600-800 C) following sulfuric acid treatment, indicating inorganic impurities. |
| Heavy Metals (as Pb) | AAS or ICP-OES | Quantification of total heavy metals by atomic absorption or optical emission after acid digestion and calibration against standards. |
| Chloride Impurity | Argentometric Titration (Mohr method) | Titration with standardized silver nitrate solution; endpoint detected by formation of red-brown Ag2CrO4 precipitate. |
| Sulfate Impurity | Gravimetric (Barium Sulfate) | Precipitation as BaSO4 under controlled conditions, followed by filtration, drying, and weighing. |
| pH of Aqueous Solution | Potentiometric (pH meter) | Measurement of hydrogen ion activity in a defined aqueous suspension or solution using calibrated glass electrode. |
| Solubility in Water | Visual Inspection/Filter Test | Qualitative assessment of complete dissolution in specified volume of water at defined temperature and time. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents using gas chromatography with flame ionization detection. |
| Related Substances (Impurity Profile) | HPLC-UV | Separation and detection of structurally related compounds using reversed-phase HPLC with UV detection at appropriate wavelength. |
| Iron Content | Colorimetric (1,10-Phenanthroline method) | Formation of orange-red Fe(II)-phenanthroline complex measured spectrophotometrically at ~510 nm. |
| Bulk Density | Volumetric Gravimetric | Mass of sample divided by its freely settled volume in a standardized cylinder, measured under controlled conditions. |
Technical Specifications of Ponceau S
| Test Item | Specification |
|---|---|
| Appearance | Red 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 | <=0.1% |
| Solubility | Soluble in water and ethanol |
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 Ponceau S
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Ponceau S
Industrial Ponceau S 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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