3,3'-Thiodipropionic acid Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 111-17-1 |
| Product name | 3,3'-Thiodipropionic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial GradeSpecialty 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 3,3'-Thiodipropionic acid
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3,3'-Thiodipropionic acid Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 3,3'-Thiodipropionic acid
| Industry | Application | Process |
|---|---|---|
| Rubber Industry | Used as a vulcanization accelerator in the vulcanization of natural and synthetic rubber | Added during rubber compounding and used in conjunction with sulfur to enhance vulcanization efficiency and crosslink density |
| Plastics Industry | Used as a stabilizer in plastic processing to prevent thermal oxidative degradation | Added during processing of thermoplastic resins such as polyolefins to improve thermal stability |
| Chemical Intermediates | Used in the synthesis of other organosulfur compounds, including agrochemical and pharmaceutical intermediates | Functionalized derivatives are prepared via reactions such as esterification and amidation |
| Lubricating Oil Additives | Used as an antioxidant and extreme-pressure additive to enhance lubricant performance | Incorporated into lubricant formulations to improve oxidation resistance and anti-wear properties |
| Metalworking Fluids | Used as a corrosion inhibitor and lubricity additive in cutting and grinding fluids | Formulated with surfactants to enhance corrosion protection and lubrication of metal workpieces |
Manufacturing Quality Control of 3,3'-Thiodipropionic acid
| Test Item | Common Testing Method | Method Summary |
|---|---|---|
| Appearance | Visual Inspection | Take an appropriate amount of sample and place it on a white background, observe its color, condition, and presence of impurities under natural light or standard light source; it should be a white to off-white crystalline powder. |
| Identification | Infrared Spectroscopy (IR) | Determine the infrared absorption spectrum using an infrared spectrometer, compare with the standard spectrum, and ensure that characteristic peaks (such as O-H stretching vibration of carboxyl group, C=O stretching vibration, S-CH₂, etc.) are consistent. |
| Melting Point | Melting Point Determination (Capillary Method or Digital Melting Point Apparatus) | Place dried sample into a melting point capillary tube, heat according to pharmacopoeia or standard method, record the temperature range from initial melting to complete melting; the melting point of thiodipropionic acid is typically 130–134 °C. |
| Content Determination | High-Performance Liquid Chromatography (HPLC) | Use a reversed-phase C18 column, with phosphate buffer-methanol or acetonitrile as mobile phase, and UV detector (wavelength usually 200–210 nm) for detection. Calculate the main component content by external standard method, purity generally required to be ≥99.0%. |
| Dry Loss | Thermogravimetric Analysis or Constant Weight Drying Method | Dry the sample at 105 °C until constant weight, calculate the percentage of weight loss to assess moisture and volatile substances content, usually required to be ≤0.5%. |
| Residue on Ignition | Residue on Ignition Test | Weigh the residual ash after heating the sample at high temperature (about 700–800 °C), used to control inorganic impurities, usually required to be ≤0.1%. |
| Heavy Metals | Thioacetamide Method or Atomic Absorption Spectrometry (AAS) | Treat the sample according to pharmacopoeia methods, determine the total amount of heavy metals such as lead, arsenic, cadmium, mercury by colorimetry or AAS, limit usually ≤10 ppm. |
| Related Substances (Impurities) | High-Performance Liquid Chromatography (HPLC) | Use gradient elution or isocratic elution conditions to separate and detect possible organic impurities (such as oxidation products, synthetic intermediates, etc.), individual impurity usually ≤0.1%, total impurities ≤0.5%. |
| pH Value | pH Meter Measurement | Prepare a solution of a certain concentration (e.g., 1% aqueous solution) of the sample, measure the pH value with a calibrated pH meter, typically in the range of 2.5–4.0. |
Technical Specifications of 3,3'-Thiodipropionic acid
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.5% (HPLC) |
| Melting Point | 46–49°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | 320–340 mg KOH/g |
| Odor | Characteristic sulfurous odor |
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 3,3'-Thiodipropionic acid
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 3,3'-Thiodipropionic acid
Packaging of 3,3'-Thiodipropionic acid
Industrial 3,3'-Thiodipropionic 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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