sodium;3-carboxy-4-hydroxybenzenesulfonate;dihydrate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1300-61-4 |
| Product name | sodium;3-carboxy-4-hydroxybenzenesulfonate;dihydrate |
| 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 sodium;3-carboxy-4-hydroxybenzenesulfonate;dihydrate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk sodium;3-carboxy-4-hydroxybenzenesulfonate;dihydrate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of sodium;3-carboxy-4-hydroxybenzenesulfonate;dihydrate
| Industry | Application | Process |
|---|---|---|
| Analytical Chemistry | Used as a colorimetric reagent and complexometric titration indicator for Fe(III) ions | Forms a violet-red complex with Fe³⁺ at pH 1.5–2.5, enabling iron quantification by colorimetry or spectrophotometry |
| Pharmaceuticals | Used as a reagent for urinary protein detection | Forms turbidity upon binding with urinary proteins under acidic conditions, enabling qualitative or semi-quantitative protein detection (sulfosalicylic acid method) |
| Chemical Synthesis | Used as an organic synthesis intermediate or ligand | Participates in metal complex synthesis, such as preparing rare-earth or transition-metal complexes for catalysis or materials research |
| Electroplating | Used as an additive in electroplating baths | Improves coating uniformity and brightness, serving as an auxiliary complexing agent in certain alloy plating processes |
| Dye Industry | Used as a dye intermediate or auxiliary | Employed in azo dye synthesis or as a metal ion chelating agent during dyeing to enhance color fastness |
Manufacturing Quality Control of sodium;3-carboxy-4-hydroxybenzenesulfonate;dihydrate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Acid-Base Titration | Quantifies active ingredient by neutralizing sulfonic and carboxylic acid groups with standardized NaOH solution using phenolphthalein indicator. |
| Moisture Content | Karl Fischer Titration | Measures water content via coulometric or volumetric reaction between water and iodine in pyridine/methanol medium. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Determines trace heavy metals by measuring absorbance of ground-state atoms in flame or graphite furnace. |
| Sulfate Impurity | Gravimetric Analysis | Precipitates sulfate as BaSO4 under controlled acidic conditions and weighs the dried precipitate. |
| Chloride Impurity | Potentiometric Titration | Titrates chloride with silver nitrate using silver indicator electrode to detect endpoint potential change. |
| Iron (Fe) Content | UV-Vis Spectrophotometry | Measures Fe2+ complex with 1,10-phenanthroline at 510 nm after reduction and pH adjustment. |
| pH of Aqueous Solution | pH Meter Measurement | Determines hydrogen ion activity in 1% w/v aqueous solution using calibrated glass electrode system. |
| Residue on Ignition | Gravimetric Analysis | Weighs non-volatile residue remaining after incineration at 700-800 C in platinum crucible. |
| Organic Volatile Impurities | Gas Chromatography (GC) | Separates and quantifies residual solvents using capillary column and FID detection. |
| Color (APHA) | Visual Comparison or Photometer | Compares sample solution color intensity against platinum-cobalt standard scale. |
| Solubility in Water | Qualitative Observation | Evaluates complete dissolution of specified amount in distilled water at 25 C with gentle agitation. |
| Particle Size Distribution | Laser Diffraction | Measures size distribution of dry powder by analyzing angular scattering pattern of laser beam. |
Technical Specifications of sodium;3-carboxy-4-hydroxybenzenesulfonate;dihydrate
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline powder |
| Purity | >=98.5% (by HPLC) |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=20 ppm (as Pb) |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Melting Point | 225–230 °C (decomposes) |
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;3-carboxy-4-hydroxybenzenesulfonate;dihydrate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of sodium;3-carboxy-4-hydroxybenzenesulfonate;dihydrate
Packaging of sodium;3-carboxy-4-hydroxybenzenesulfonate;dihydrate
Industrial sodium;3-carboxy-4-hydroxybenzenesulfonate;dihydrate 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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