SPADNS Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 23647-14-5 |
| Product name | SPADNS |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeSpecialty GradeReagent 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 SPADNS
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk SPADNS Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of SPADNS
| Industry | Application | Process |
|---|---|---|
| Textile Industry | Dye intermediate | Synthesis of azo dyes |
| Printing Industry | Pigment preparation | Chemical synthesis and purification |
| Chemical Research | Analytical reagent | Complexometric titration indicator |
| Pigment Manufacturing | Intermediate for pigment synthesis | Preparation of azo compounds |
Manufacturing Quality Control of SPADNS
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantitative determination based on absorbance at characteristic wavelength (e.g., ~520 nm) using a calibrated standard curve. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in anhydrous methanol medium. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after acid digestion by measuring atomic absorption at element-specific wavelengths. |
| Chloride Impurity | Potentiometric Titration with AgNO3 | Titration with silver nitrate using a silver indicator electrode; endpoint detected by potential change due to AgCl precipitation. |
| Sulfate Impurity | Gravimetric Analysis | Precipitation as BaSO4 under controlled acidic conditions, followed by filtration, drying, and weighing of the precipitate. |
| pH of 1% Aqueous Solution | pH Meter Measurement | Direct measurement using calibrated pH electrode in a standardized aqueous solution at 25 C. |
| Organic Impurities (Related Substances) | HPLC with UV Detection | Separation on reversed-phase column and quantification of impurities relative to main peak using UV absorbance at specified wavelength. |
| Residue on Ignition | Gravimetric Analysis | Heating sample to 700-800 C to volatilize organics, then weighing inorganic residue after cooling in desiccator. |
| Iron (Fe) Content | ICP-OES | Multi-element quantification after microwave-assisted acid digestion using plasma-excited atomic emission intensities. |
| Loss on Drying | Thermogravimetric Analysis (TGA) | Weight loss measured upon heating to 105 C for 2 hours under controlled airflow, reflecting volatile content. |
| Solubility in Water | Visual Observation & Filtration | Assessment of complete dissolution in specified volume of water at 20 C, followed by visual inspection and optional membrane filtration. |
| Bulk Density | Graduated Cylinder Method | Mass of freely poured sample divided by its settled volume in a calibrated cylinder after standardized tapping. |
Technical Specifications of SPADNS
| Test Item | Specification |
|---|---|
| Appearance | Red crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.2% |
| Single Impurity | <=0.3% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| 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 SPADNS
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of SPADNS
Industrial SPADNS 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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