4525-44-4 Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 4525-44-4 |
| Product name | 4525-44-4 |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial GradeElectronic GradeSpecialty Grade |
| Packaging | 25KG/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 4525-44-4
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4525-44-4 Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4525-44-4
| Industry | Application | Process |
|---|---|---|
| Organosilicon Materials | Intermediate for synthesizing methyl ethyl silicone oil and silicone resins | Undergoes hydrolysis or alcoholysis with water or alcohols to generate silanols or alkoxysilanes, followed by condensation polymerization to produce silicone oils or resins |
| Semiconductor Manufacturing | Chemical vapor deposition (CVD) precursor for silicon-containing thin films | Thermally decomposes under high-temperature, low-pressure conditions to deposit SiO₂ or doped silicon thin films onto substrates |
| Waterproofing & Moisture-Proofing Agents | Production of hydrophobic treatment agents for construction materials | Reacts with surface hydroxyl groups on inorganic substrates to form a hydrophobic siloxane-bonded layer |
| Rubber Industry | Structural control agent for silicone rubber | Reacts with residual catalyst in raw rubber to regulate crosslink density and processing performance |
Manufacturing Quality Control of 4525-44-4
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) | Quantitative separation and detection of MECS based on volatility and retention time using a calibrated column and FID detector. |
| Acid Chloride Content | Acid-Base Titration | Hydrolysis of Si-Cl bonds followed by titration of liberated HCl with standardized NaOH solution using phenolphthalein indicator. |
| Water Content | Karl Fischer Titration | Electrochemical determination of water via iodine-sulfur dioxide reaction in methanol-based reagent under controlled anhydrous conditions. |
| Residue on Evaporation | Gravimetric Analysis | Evaporation of a known sample mass to dryness at controlled temperature, followed by weighing of non-volatile residue. |
| Color | Visual Comparison or Spectrophotometry (APHA/Pt-Co Scale) | Comparison of sample color against standard platinum-cobalt solutions or measurement of absorbance at 455 nm in a 10-mm cell. |
| Density | Digital Density Meter | Measurement of sample density at 20 degrees C using oscillating U-tube principle based on frequency shift correlated to mass per unit volume. |
| Refractive Index | Refractometry | Determination of refractive index at 20 degrees C using total internal reflection principle with sodium D-line light source. |
| Chloride Ion (as Cl-) | Ion Chromatography (IC) | Separation of anions on an ion-exchange column followed by conductivity detection after suppression of background electrolyte. |
| Heavy Metals (Pb, Fe, Cu, etc.) | ICP-OES | Atomization and excitation of metal ions in high-temperature plasma; quantification via element-specific emission wavelengths. |
| Volatile Impurities (e.g., CH3Cl, C2H5Cl) | Gas Chromatography-Mass Spectrometry (GC-MS) | Separation by GC followed by identification and quantification of volatile impurities using mass spectral fragmentation patterns. |
| Free Hydrochloric Acid | Potentiometric Titration | Titration with standardized NaOH using pH electrode to detect endpoint corresponding to neutralization of residual HCl. |
| Non-Volatile Acids (e.g., HCl, H2SO4 residuals) | Acid-Base Titration with Back-Titration | Reaction with excess standardized NaOH, followed by back-titration of unreacted base with standardized HCl using mixed indicator. |
Technical Specifications of 4525-44-4
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.425-1.435 |
| Relative Density (20°C/25°C) | 1.075-1.085 g/cm³ |
| Odor | Pungent, chlorosilane-like |
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 4525-44-4
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Packaging of 4525-44-4
Industrial 4525-44-4 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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