1,2-Ethanedithiol Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 540-63-6 |
| Product name | 1,2-Ethanedithiol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeReagent Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 1,2-Ethanedithiol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 1,2-Ethanedithiol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 1,2-Ethanedithiol
| Industry | Application | Process Description |
|---|---|---|
| Chemical Industry | Synthesis of Intermediates | Used in the synthesis of heterocyclic compounds, pharmaceutical intermediates, and organosulfur compounds |
| Pharmaceutical Industry | Drug Synthesis | Applied as a reagent for introducing thiol groups into certain drug molecules |
| Materials Science | Polymer Synthesis | Used as a crosslinker or chain terminator in thiol–ene and related reactions |
| Pesticide Industry | Pesticide Formulation Synthesis | Involved in synthesizing organosulfur compounds for insecticide or fungicide production |
| Laboratory Research | Organic Synthesis Reagent | Used in laboratories for thiol group introduction or preparation of sulfur-based ligands |
Manufacturing Quality Control of 1,2-Ethanedithiol
| Test Item | Common Testing Method | Method Description |
|---|---|---|
| Purity (Active Ingredient Content) | Gas Chromatography (GC) | A capillary column (e.g., DB-5 or HP-INNOWAX) is used with FID as the detector. Quantification is performed using internal standard or external standard methods. This method is suitable for separating and determining 1,2-ethanedithiol and its possible impurities (such as disulfides, water, alcohols). |
| Water Content | Karl Fischer Titration | Iodine reacts quantitatively with water in the presence of sulfur dioxide, pyridine, and methanol. The moisture content is determined by electrochemical or volumetric titration methods, which are used to control the impact of water on product stability. |
| Sulfur Content | Oxygen Bomb Combustion - Ion Chromatography (OBC-IC) | The sample is completely combusted in an oxygen bomb, converting sulfur into sulfate ions. Ion chromatography is then used to measure SO₄²⁻ concentration, indirectly calculating total sulfur content to verify whether the proportion of sulfur atoms matches the theoretical value. |
| Appearance and Color | Visual Inspection + Colorimetry (APHA) | Transparency and yellowness (APHA color number) of the sample are evaluated through visual comparison or a colorimeter, to assess if colored impurities such as disulfides have been formed due to oxidation. |
| Acid Value / Free Acids | Acid-Base Titration | Free acidic impurities (e.g., thio carboxylic acids generated by oxidation) are titrated with a standard NaOH solution using phenolphthalein as an indicator. The acid value is controlled to ≤0.1 mg KOH/g. |
| Impurity Profile (Organic Impurities) | High-Performance Liquid Chromatography (HPLC) | A C18 reverse-phase column is used with a UV detector (210–230 nm) or evaporative light scattering detector (ELSD). Gradient elution is employed to separate low-volatility or thermally unstable impurities, such as dimers and oxidation products. |
| Boiling Point / Distillation Range | Distillation Method (Atmospheric or Reduced Pressure) | The boiling point range (approximately 175–178°C at atmospheric pressure for 1,2-ethanedithiol) is measured using a precision distillation apparatus to determine the presence of high-boiling or low-boiling impurities. |
| Heavy Metal Content | Atomic Absorption Spectrometry (AAS) or ICP-MS | After nitric acid digestion, AAS or ICP-MS is used to determine residual heavy metals such as Pb, Cd, Hg, and As, complying with pharmacopoeia or electronic chemical standards (e.g., ≤5 ppm). |
| Oxidation Stability (Disulfides) | UV-Visible Spectrophotometry (UV-Vis) | 1,2-Ethanedithiol easily oxidizes to form 1,2-ethane dithiol or disulfides, which exhibit characteristic absorption peaks at 240–260 nm. Oxidation extent is assessed based on absorbance changes. |
| Odor and Volatility | Odor Evaluation + Gas Chromatography-Olfactometry (GC-O) | Odor evaluation is conducted by trained personnel, combined with GC-O techniques to identify abnormal odor components (such as hydrogen sulfide or oxidized thiols), for sensory quality control. |
Technical Specifications of 1,2-Ethanedithiol
| Test Item | Specification |
|---|---|
| Appearance | Colorless to almost colorless clear liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.528–1.532 |
| Relative Density (20°C/25°C) | 1.065–1.075 g/cm³ |
| 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 1,2-Ethanedithiol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 1,2-Ethanedithiol
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Industrial 1,2-Ethanedithiol 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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