4,5-epoxytetrahydrophthalic acid diglycidylester Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 25293-64-5 |
| Product name | 4,5-epoxytetrahydrophthalic acid diglycidylester |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 4,5-epoxytetrahydrophthalic acid diglycidylester
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,5-epoxytetrahydrophthalic acid diglycidylester Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,5-epoxytetrahydrophthalic acid diglycidylester
| Industry | Application | Process |
|---|---|---|
| Electronics & Electrical | Encapsulation materials for electronic components; molding compounds for integrated circuit packaging | Used as an anhydride curing agent reacting with epoxy resins to form a highly heat-resistant, electrically insulating cured network. |
| Electronics & Electrical | Matrix resin modification for copper-clad laminates (CCL) | Used as a reactive flame-retardant curing agent or modifier, compounded with bisphenol-A epoxy resins and thermally pressed to produce high-performance insulating substrates. |
| Adhesives | High-temperature structural adhesives; conductive adhesives | Provides high crosslink density via ring-opening polymerization between anhydride and epoxy groups, imparting excellent thermal resistance and mechanical strength to the adhesive bond. |
| Coatings | Insulating coatings; high-temperature corrosion-resistant coatings | Cures and crosslinks with epoxy resins under catalytic conditions to form a dense coating film, delivering good chemical resistance and substrate adhesion. |
| Composites | Carbon fiber/glass fiber prepregs; high-temperature laminates | Serves as a curing agent for matrix resins, applied via solution or melt impregnation followed by hot-press molding to produce high-strength composite components. |
Manufacturing Quality Control of 4,5-epoxytetrahydrophthalic acid diglycidylester
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Assessment of physical state and color under controlled lighting conditions. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities with standardized KOH solution using phenolphthalein indicator. |
| Epoxy Equivalent Weight | Hydrochloric Acid-Acetone Titration | Reaction of epoxy groups with HCl in acetone, followed by back-titration with NaOH. |
| Viscosity | Rotational Viscometry | Measurement of resistance to flow under defined shear rate and temperature (e.g., 25 C). |
| Density | Digital Density Meter | Determination based on oscillating U-tube principle using calibrated reference standards. |
| Water Content | Karl Fischer Titration | Quantitative reaction of water with iodine and sulfur dioxide in pyridine/methanol medium. |
| Chloride Content | Potentiometric Titration | Titration with silver nitrate using silver indicator electrode and reference electrode. |
| Refractive Index | Refractometry | Measurement of light bending angle at air-sample interface using calibrated Abbe refractometer. |
| Color (APHA) | Spectrophotometric Colorimetry | Comparison of sample absorbance at 430 nm against platinum-cobalt standard solutions. |
| Non-Volatile Matter | Gravimetric Analysis | Evaporation of solvent under controlled temperature and weighing of residual solids. |
| Heavy Metals | ICP-OES | Atomization and excitation of metals in argon plasma; quantification via element-specific emission intensities. |
| Residual Solvents | Gas Chromatography (GC-FID) | Separation and detection of volatile organic impurities using flame ionization detector. |
Technical Specifications of 4,5-epoxytetrahydrophthalic acid diglycidylester
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.3% |
| Refractive Index (n20/D) | 1.495 - 1.505 |
| Acid Value (mg KOH/g) | <=0.5 |
| Color (APHA/Pt-Co) | <=100 |
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 4,5-epoxytetrahydrophthalic acid diglycidylester
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Safety Information of 4,5-epoxytetrahydrophthalic acid diglycidylester
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 4,5-epoxytetrahydrophthalic acid diglycidylester
Industrial 4,5-epoxytetrahydrophthalic acid diglycidylester 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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