Selenium sulfide Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 7446-34-6 |
| Product name | Selenium sulfide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial GradeSpecialty 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 Selenium sulfide
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Selenium sulfide Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Selenium sulfide
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Industry | Antifungal agent | Used in the preparation of selenium sulfide creams or lotions |
| Cosmetics Industry | Anti-dandruff and anti-seborrheic ingredient | Incorporated into shampoos or skincare products |
| Agriculture | Insecticide or fungicide | Formulated into pesticide solutions containing selenium sulfide |
| Chemical Industry | Intermediate for selenium compound synthesis | Serves as a selenium source in chemical reactions |
| Materials Science | Semiconductor material research | Applied in the synthesis of specific selenide-based semiconductor materials |
Manufacturing Quality Control of Selenium sulfide
| Test Item | Common Testing Method | Method Overview |
|---|---|---|
| Assay (Selenium Sulfide Content) | Iodometric Titration | Selenium sulfide reacts with iodine in an acidic medium via a redox reaction. The selenium content is determined by titrating either the residual iodine or the iodide formed, enabling accurate quantification. This method is simple to perform, cost-effective, and suitable for quantitative analysis of active ingredients in both raw materials and finished products. |
| Heavy Metal Impurities | Atomic Absorption Spectroscopy (AAS) or Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | After sample digestion, AAS or ICP-MS is used to determine residual levels of heavy metals such as lead, arsenic, mercury, and cadmium, ensuring compliance with pharmacopoeial or cosmetic safety standards. ICP-MS offers higher sensitivity and enables simultaneous detection of multiple elements. |
| Selenium Speciation | High-Performance Liquid Chromatography coupled with Inductively Coupled Plasma Mass Spectrometry (HPLC-ICP-MS) | This method separates and quantifies different selenium species or valence states (e.g., Se²⁻, Se⁴⁺, Se⁶⁺), assessing the presence of toxic selenium forms and ensuring product safety. |
| pH Value | pH Meter Method | The selenium sulfide is prepared into a suspension or solution of specified concentration, and the pH is measured directly using a calibrated pH meter. This controls the acidity or alkalinity of the product to ensure stability and skin compatibility. |
| Microbial Limits | Microbiological Culture Methods (in accordance with Chinese Pharmacopoeia or USP) | Using membrane filtration or plate count methods, total aerobic microbial count, total mold and yeast count, and specified pathogens (e.g., Staphylococcus aureus, Pseudomonas aeruginosa) are tested to ensure the product meets sterility or microbial load requirements. |
| Particle Size Distribution | Laser Diffraction Particle Size Analysis | Selenium sulfide is dispersed in a suitable medium, and particle size distribution is measured based on laser light scattering. This is critical for the uniformity, stability, and skin adherence of topical formulations such as shampoos. |
| Loss on Drying / Moisture Content | Gravimetric Loss on Drying or Karl Fischer Titration | The gravimetric method measures total volatile content after drying. For precise moisture determination—especially when crystalline water is present—Karl Fischer titration (volumetric or coulometric) is preferred. |
| Appearance and Color | Visual Color Comparison or UV-Visible Spectrophotometry | Color consistency is controlled by comparison with standard color solutions or by measuring absorbance at specific wavelengths, preventing discoloration due to oxidation or impurities. |
Technical Specifications of Selenium sulfide
| Test Item | Specification |
|---|---|
| Appearance | Orange-red to dark red crystalline powder |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.2% |
| Single Impurity | <=0.3% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Melting Point | 220-225°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 Selenium sulfide
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of Selenium sulfide
Industrial Selenium sulfide 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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