Benzenesulfonic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 98-11-3 |
| Product name | Benzenesulfonic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty GradeIndustrial GradeReagent GradeCosmetic GradeFood 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 Benzenesulfonic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Benzenesulfonic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Benzenesulfonic acid
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of pharmaceutical intermediates | Used as a sulfonating agent in constructing drug molecule frameworks |
| Pesticides | Synthesis of pesticides | Applied in the preparation of sulfonylurea herbicides |
| Dyes | Synthesis of dyes | Provides benzenesulfonyl groups in sulfonation reactions |
| Surfactants | Synthesis of detergents | Used in the production of sodium alkylbenzenesulfonates |
| Cosmetics | Acidic pH adjuster | Adjusts product pH |
| Analytical Chemistry | Standard reagent | Standard acid for acid-base titration |
| Industrial Cleaning | Descaling agent component | Strong acidity employed to remove metal surface oxides |
| Plastics Industry | Catalyst | Acts as an acidic catalyst in polymerization reactions |
| Petrochemicals | Catalytic cracking additive | Enhances catalyst activity |
| Textile Industry | Dyeing and finishing auxiliary | Used as an acidic treatment agent to improve fiber performance |
Manufacturing Quality Control of Benzenesulfonic acid
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Assay | Acid-Base Titration | Utilizes the acidity of benzenesulfonic acid, titrated with standard sodium hydroxide solution. The endpoint is indicated by phenolphthalein or potentiometric detection to calculate the content. |
| High-Performance Liquid Chromatography (HPLC) | Uses a reversed-phase C18 column and a UV detector (e.g., 254 nm). Quantifies benzenesulfonic acid content via external or internal standard methods. | |
| Purity and Impurity Analysis | High-Performance Liquid Chromatography (HPLC) | Separates the main peak from impurity peaks, calculates the area of each impurity peak and total impurity content to evaluate purity. |
| Gas Chromatography (GC) | Suitable for detecting volatile impurities; requires sample derivatization to enhance detection sensitivity and volatility. | |
| Moisture Content | Karl Fischer Titration | Determines trace moisture precisely based on the reaction of iodine and sulfur dioxide with water in an anhydrous environment. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) | After sample digestion, measures the content of specific heavy metal elements such as lead, cadmium, and mercury to meet pharmacopoeial limit requirements. |
| Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | Simultaneously detects multiple heavy metal elements with high sensitivity; suitable for trace metal impurity analysis. | |
| Related Substances (Degradation Products) | High-Performance Liquid Chromatography (HPLC) | Uses gradient elution to separate potential degradation products of benzenesulfonic acid (e.g., benzene, phenol derivatives), followed by qualitative and quantitative analysis. |
| Solution Clarity and Color | Visual Color Comparison Method | Prepares a solution of specified concentration and compares it visually with standard color solutions to assess clarity and color conformity. |
| Sulfated Ash Residue | Sulfated Ashing Method | Sample is ignited at high temperature with added sulfuric acid; the residual inorganic matter is weighed to indicate inorganic impurity content. |
| pH Value | pH Meter Method | Prepares an aqueous solution of defined concentration and directly measures acidity using a calibrated pH meter. |
Technical Specifications of Benzenesulfonic acid
| Test Item | Specification |
|---|---|
| Appearance | Light brown solid |
| Purity | ≥98.0% |
| Free Acid | ≤1.0% |
| Water | ≤2.0% |
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 Benzenesulfonic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Benzenesulfonic acid
Packaging of Benzenesulfonic acid
Industrial Benzenesulfonic 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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