TETRAMETHYL PYROMELLITATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 635-10-9 |
| Product name | TETRAMETHYL PYROMELLITATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeElectronic 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 TETRAMETHYL PYROMELLITATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk TETRAMETHYL PYROMELLITATE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of TETRAMETHYL PYROMELLITATE
| Industry | Application | Process |
|---|---|---|
| Chemicals | Organic synthesis intermediate | Serves as a precursor in the synthesis of polyimides and other high-performance polymers |
| Materials Science | High-performance polymer production | Used as a crosslinker or monomer in the synthesis of high-temperature-resistant resins |
| Electronics | Insulating material manufacturing | Applied in the production of heat-resistant insulating coatings and encapsulation materials for electronic devices |
| Aerospace | Composite manufacturing | Involved in the synthesis of resin matrices for high-temperature-resistant, high-strength composites |
Manufacturing Quality Control of TETRAMETHYL PYROMELLITATE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reverse-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in a methanol-based reagent. |
| Residual Solvents (Methanol, Acetone) | GC-FID | Separation and quantification of volatile solvents by gas chromatography with flame ionization detection. |
| Heavy Metals (Pb, Cd, Hg, As) | ICP-MS | Multi-element detection via inductively coupled plasma mass spectrometry after acid digestion and dilution. |
| Chloride Impurity | Ion Chromatography | Anion separation on a high-capacity column with conductivity detection, calibrated against NaCl standards. |
| Acid Value | Acid-Base Titration | Neutralization of free carboxylic acids (if present) with standardized KOH solution using phenolphthalein indicator. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Measurement of yellowness index by comparing sample solution absorbance at 430 nm to APHA platinum-cobalt standards. |
| Melting Point | Capillary Melting Point Apparatus | Thermal determination of solid-to-liquid transition range using calibrated capillary tube apparatus. |
| Particle Size Distribution | Laser Diffraction | Analysis of scattered laser light intensity versus angle to calculate volume-based particle size distribution. |
| Residue on Ignition | Gravimetric Analysis | Weighing residue remaining after high-temperature ashing (750 C) to determine inorganic impurities. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light passing through a solution of known concentration and path length. |
| Organic Volatile Impurities (e.g., DMF, DMSO) | GC-MS | Identification and quantification of residual polar solvents using gas chromatography coupled with mass spectrometry. |
Technical Specifications of TETRAMETHYL PYROMELLITATE
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline solid |
| Purity | >=98.5% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 285–290 °C |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Heavy Metals | <=10 ppm |
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 TETRAMETHYL PYROMELLITATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of TETRAMETHYL PYROMELLITATE
Packaging of TETRAMETHYL PYROMELLITATE
Industrial TETRAMETHYL PYROMELLITATE 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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