4518-94-9 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4518-94-9 |
| Product name | 4518-94-9 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeMaterial GradeElectronic GradeSpecialty Grade |
| Packaging | 25L/drum |
| 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 4518-94-9
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4518-94-9 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4518-94-9
| Industry | Application | Process |
|---|---|---|
| Organosilicon Materials | Used as silane coupling agents to improve adhesion between organic and inorganic materials | Surface treatment, composite modification |
| Pharmaceutical Intermediates | Used in the synthesis of silicon-containing drug molecules or functional materials | Organic synthesis, catalytic reactions |
| Coatings and Adhesives | Added to enhance coating adhesion or adhesive weather resistance | Blending modification, crosslinking reactions |
| Electronic Chemicals | Applied as surface modifiers for semiconductor or optoelectronic materials | Chemical vapor deposition, solution coating |
| Rubber and Plastics | Used as crosslinking or modifying agents to improve polymer performance (e.g., heat resistance, mechanical strength) | Mastication, high-temperature curing |
Manufacturing Quality Control of 4518-94-9
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detector | Quantitative determination based on peak area comparison against certified reference standard under optimized chromatographic conditions. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in methanol-based solvent system. |
| Acid Value | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Chloride Content | Potentiometric Titration with AgNO3 | Precipitation titration where chloride ions react with silver nitrate, detected by silver ion-selective electrode. |
| Residue on Ignition | Gravimetric Analysis | Mass measurement of non-volatile residue after controlled high-temperature ashing in a muffle furnace. |
| Density at 20 C | Digital Density Meter | Measurement of mass per unit volume using oscillating U-tube principle calibrated with water and air standards. |
| Refractive Index at 20 C | Refractometry | Determination of light bending angle at air-sample interface using calibrated Abbe refractometer. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Evaluation of yellowness intensity against platinum-cobalt standard solutions or at 430 nm absorbance. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element detection of trace metals after acid digestion and plasma excitation, quantified by characteristic emission lines. |
| Volatile Impurities | Headspace GC-MS | Identification and quantification of low-boiling contaminants using gas chromatography coupled with mass spectrometry. |
| Hydrolyzable Chlorides | Titration after Hydrolysis | Conversion of reactive Si-Cl bonds to HCl via controlled water addition, followed by acid titration. |
| Non-Volatile Residue | Evaporation and Gravimetry | Weighing of residue remaining after gentle evaporation of sample under nitrogen stream at controlled temperature. |
Technical Specifications of 4518-94-9
| Test Item | Specification |
|---|---|
| Appearance | Colorless to light yellow clear liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Refractive Index (n20/D) | 1.420–1.430 |
| Relative Density (20°C/25°C) | 1.02–1.04 g/cm³ |
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 4518-94-9
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4518-94-9
Packaging of 4518-94-9
Industrial 4518-94-9 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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