8-Hydroxyquinoline-5-sulfonic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 84-88-8 |
| Product name | 8-Hydroxyquinoline-5-sulfonic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeIndustrial 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 8-Hydroxyquinoline-5-sulfonic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 8-Hydroxyquinoline-5-sulfonic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 8-Hydroxyquinoline-5-sulfonic acid
| Industry | Application | Process |
|---|---|---|
| Chemical | Used as an organic synthesis intermediate | Reacted with various reagents to prepare target compounds |
| Analytical Chemistry | Used as a complexing agent | Applied for detection or separation of metal ions |
| Pharmaceutical R&D | Used as a ligand in drug synthesis | Facilitates specific chemical transformations within catalytic systems |
| Pesticides | Used as a raw material in pesticide synthesis | Integrated into the structural construction of pesticide active ingredients |
| Dye Industry | Used in dye manufacturing | Involved in dye molecule design and synthesis via reactions such as sulfonation |
Manufacturing Quality Control of 8-Hydroxyquinoline-5-sulfonic acid
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | UV-Vis Spectrophotometry | Quantifies 8-hydroxyquinoline-5-sulfonic acid based on its characteristic absorbance at ~370 nm using a calibrated standard curve. |
| Loss on Drying (LOD) | Gravimetric (Thermogravimetric) Method | Measures mass loss after drying at 105 °C to constant weight, reflecting volatile content including water and residual solvents. |
| Residue on Ignition (Sulfated Ash) | Gravimetric (Sulfated Ash Method) | Determines inorganic impurities by incinerating sample with sulfuric acid and weighing the residual ash. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantifies total heavy metals (e.g., Pb, Cd, Hg, As) after wet digestion, using flame or graphite furnace AAS. |
| Chloride Impurity | Potentiometric Titration with AgNO₃ | Measures chloride ions via argentometric titration using a silver nitrate solution and silver/silver chloride electrode. |
| Sulfate Impurity | Barium Sulfate Gravimetric Method | Precipitates sulfate as BaSO₄ under controlled acidic conditions and determines content by weighing the dried precipitate. |
| pH of Aqueous Solution (1% w/v) | pH Potentiometry | Measures hydrogen ion activity in a 1% aqueous solution using a calibrated pH meter with glass electrode. |
| Related Substances (Impurity Profile) | Reversed-Phase HPLC with UV Detection | Separates and quantifies structurally related impurities (e.g., unreacted quinoline, over-sulfonated species) using C18 column and UV detection at 254/370 nm. |
| Iron (Fe) Content | ICP-OES | Quantifies trace iron after acid digestion by measuring atomic emission intensity at characteristic wavelength (e.g., 238.204 nm). |
Technical Specifications of 8-Hydroxyquinoline-5-sulfonic acid
| Test Item | Specification |
|---|---|
| Appearance | Yellow solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 175–179 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=20 ppm |
| Residue on Ignition | <=0.1% |
| Identification (IR) | Conforms to reference spectrum |
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 8-Hydroxyquinoline-5-sulfonic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 8-Hydroxyquinoline-5-sulfonic acid
Safety Information of 8-Hydroxyquinoline-5-sulfonic acid
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 8-Hydroxyquinoline-5-sulfonic acid
Industrial 8-Hydroxyquinoline-5-sulfonic acid 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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