Sodium anthraquinone-2-sulfonate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 131-08-8 |
| Product name | Sodium anthraquinone-2-sulfonate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic 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 Sodium anthraquinone-2-sulfonate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Sodium anthraquinone-2-sulfonate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Sodium anthraquinone-2-sulfonate
| Industry | Application | Process |
|---|---|---|
| Dye Industry | Intermediate for synthesizing anthraquinone-based disperse dyes and acid dyes | Produced via sulfonation of anthraquinone; used in subsequent coupling, condensation, and other reactions to synthesize dye molecules |
| Chemical Industry | Sulfonating agent and intermediate in organic synthesis | Reacts with anthraquinone under alkaline conditions to introduce sulfonic acid groups, enabling preparation of functionalized anthraquinone derivatives |
| Textile Industry | Used to produce blue and violet acid dyes for textile applications | Serves as a precursor for sulfonic acid groups in dye molecules, enhancing water solubility and dyeing fastness |
| Optoelectronic Materials | Used to prepare photosensitive anthraquinone compounds | Sulfonic acid group modification is applied to tune electron transport properties and light absorption characteristics |
Manufacturing Quality Control of Sodium anthraquinone-2-sulfonate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantitative determination based on absorbance at characteristic wavelength (e.g., 254 nm) using a calibrated standard curve. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via reaction of iodine with sulfur dioxide in pyridine/methanol medium. |
| pH of Aqueous Solution | Potentiometric pH Measurement | Determination of hydrogen ion activity using a calibrated glass electrode and reference electrode in 1% w/v aqueous solution. |
| Sodium Content | Flame Photometry | Quantification of Na+ ions by measuring emission intensity at 589 nm upon atomization in air-propane flame. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Measurement of absorbance of ground-state atoms in graphite furnace or flame, after acid digestion and matrix modification. |
| Sulfate Impurity | Barium Sulfate Gravimetric Method | Precipitation of sulfate as BaSO4 under controlled conditions, followed by drying and weighing of the precipitate. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Titration using silver nitrate and a silver indicator electrode; endpoint detected by potential jump due to AgCl precipitation. |
| Organic Impurities (Related Substances) | HPLC with UV Detection | Separation on reversed-phase C18 column and quantification using UV absorbance at 254 nm relative to reference standards. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Heating sample at 700-800 C to constant weight; residue represents inorganic ash content. |
| Iron Impurity | Colorimetric Method with 1,10-Phenanthroline | Formation of orange-red Fe(II)-phenanthroline complex measured spectrophotometrically at 510 nm after reduction. |
| Water Insolubles | Filtration and Drying | Suspension in distilled water, filtration through pre-weighed sintered glass crucible, drying, and gravimetric determination. |
| Bulk Density | Graduated Cylinder Method | Mass of material freely poured into a calibrated cylinder divided by its settled volume. |
Technical Specifications of Sodium anthraquinone-2-sulfonate
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (HPLC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=10 ppm |
| Melting Point | 245–249 °C |
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 Sodium anthraquinone-2-sulfonate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Sodium anthraquinone-2-sulfonate
Safety Information of Sodium anthraquinone-2-sulfonate
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of Sodium anthraquinone-2-sulfonate
Industrial Sodium anthraquinone-2-sulfonate 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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