3-Thiocyanatopropyltriethoxysilane Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 34708-08-2 |
| Product name | 3-Thiocyanatopropyltriethoxysilane |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial 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 3-Thiocyanatopropyltriethoxysilane
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 3-Thiocyanatopropyltriethoxysilane Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 3-Thiocyanatopropyltriethoxysilane
| Industry | Application | Process |
|---|---|---|
| Rubber Industry | Silica dispersant and coupling agent for tire tread compounds, enhancing interfacial adhesion between silica and rubber matrix | Blended with silica and natural rubber/solution-styrene-butadiene rubber during rubber compounding; during vulcanization at 140–160 °C, silanol condensation and reaction of thiocyanate groups with rubber double bonds/vulcanization system form stable Si–O–Si and C–S covalent bridges |
| Composites | Coupling agent for glass fiber–resin interfaces in glass fiber-reinforced plastics (GFRP), e.g., with epoxy or unsaturated polyester resins | Dissolved in ethanol/water mixture at 0.5–2.0 wt%, applied via glass fiber impregnation followed by drying at 110–130 °C; triethoxy hydrolysis and condensation yield Si–O–Glass bonds, while thiocyanate groups participate in subsequent resin curing reactions |
| Coatings & Adhesives | Surface modifier for inorganic fillers (e.g., talc, mica) in aqueous acrylic/epoxy coatings, improving filler dispersion and coating adhesion | Fillers pre-treated with silane ethanol/water solution (pH 4–5), stirred at room temperature for 30–60 min, then filtered and dried; thiocyanate groups react with amine- or thiol-containing crosslinkers to increase coating crosslink density |
Manufacturing Quality Control of 3-Thiocyanatopropyltriethoxysilane
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantifies main component by retention time and peak area against calibrated standard. |
| Water Content | Karl Fischer Titration | Measures water via stoichiometric reaction between iodine, sulfur dioxide, and water in methanol/pyridine medium. |
| Acid Value | Acid-Base Titration with NaOH standard solution | Determines free acidic impurities by neutralization with standardized sodium hydroxide solution. |
| Density at 25 C | Digital Density Meter | Measures mass per unit volume using oscillating U-tube principle with temperature control. |
| Refractive Index at 20 C | Refractometry | Determines refractive index based on critical angle of total internal reflection in a prism-cell system. |
| Color (APHA) | Visual Comparison or Spectrophotometric APHA method | Evaluates yellowness by matching sample color to platinum-cobalt standard solutions or measuring absorbance at 430 nm. |
| Residue on Ignition | Gravimetric Analysis (Weight Loss on Ignition) | Measures non-volatile inorganic residue after controlled high-temperature ashing and cooling. |
| Chloride Content | Ion Chromatography (IC) or Potentiometric Titration | Quantifies chloride ions via separation on anion-exchange column or silver nitrate titration with chloride-selective electrode. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-OES | Simultaneously detects trace metal elements by measuring characteristic atomic emission wavelengths after plasma atomization. |
| Sulfur Content | Combustion IC (Ion Chromatography after Combustion) | Oxidizes organic sulfur to sulfate, then quantifies sulfate ion concentration via suppressed conductivity detection. |
| Ethoxy Group Content | Hydrolysis-GC or NMR | Determines ethoxy groups by acid-catalyzed cleavage followed by GC analysis of ethanol or quantitative 1H NMR integration. |
| Viscosity at 25 C | Rotational Viscometry | Measures resistance to flow under shear stress using controlled-speed spindle rotation in sample. |
Technical Specifications of 3-Thiocyanatopropyltriethoxysilane
| Test Item | Specification |
|---|---|
| Appearance | Colorless to light yellow, clear liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.445–1.455 |
| Relative Density (20°C/25°C) | 1.025–1.035 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 3-Thiocyanatopropyltriethoxysilane
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 3-Thiocyanatopropyltriethoxysilane
Safety Information of 3-Thiocyanatopropyltriethoxysilane
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 3-Thiocyanatopropyltriethoxysilane
Industrial 3-Thiocyanatopropyltriethoxysilane 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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