Methyltetrahydrophthalic anhydride Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 26590-20-5 |
| Product name | Methyltetrahydrophthalic anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic 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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for Methyltetrahydrophthalic anhydride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Methyltetrahydrophthalic anhydride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Methyltetrahydrophthalic anhydride
| Industry | Application | Process |
|---|---|---|
| Electronics | Epoxy resin curing agent for semiconductor packaging and insulating materials in printed circuit boards (PCBs) | Mixed with epoxy resin and thermally cured to form high-performance insulation |
| Coatings | Epoxy resin curing agent for high-performance industrial coatings, floor coatings, and corrosion-resistant coatings | Reacted with epoxy resin to form chemically and thermally resistant coating films |
| Adhesives | Epoxy resin curing agent for structural adhesives, electronic adhesives, and composite bonding | Combined with epoxy resin for strong bonding via heat or ambient-temperature curing |
| Composites | Epoxy resin curing agent for carbon fiber-reinforced polymers (CFRPs) and fiberglass-reinforced plastics (FRPs) | Cures epoxy resin during lamination or compression molding to produce high-strength, lightweight materials |
| Electrical Insulation | Insulating encapsulation material for electrical equipment such as transformers and current transformers | Mixed with epoxy resin and cast or vacuum impregnated, then cured to provide electrical insulation protection |
Manufacturing Quality Control of Methyltetrahydrophthalic anhydride
| Detection Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color and physical state under natural light or standard lighting conditions to determine whether it is a colorless to pale yellow transparent liquid or crystalline substance, and check for impurities, turbidity, or precipitates. |
| Purity (Content) | Acid Value Titration / High-Performance Liquid Chromatography (HPLC) | Acid Value Method: Titrate with potassium hydroxide in ethanol solution; calculate acid value based on consumed volume, then convert to main component content. HPLC Method: Use reversed-phase chromatographic column with UV detector to quantify peak area; calculate purity using external standard method or normalization method. |
| Acid Value | Acid-Base Titration | Dissolve the sample in ethanol or acetone, titrate to endpoint (phenolphthalein indicator turns pink) using standardized KOH in ethanol solution, and calculate the milligrams of KOH consumed per gram of sample (mg KOH/g). |
| Moisture Content | Karl Fischer Titration | Utilize electrochemical principles to measure water content in samples, available in volumetric and coulometric modes; suitable for trace moisture analysis with high accuracy. |
| Colorimetry | Platinum-Cobalt Colorimetric Method (Pt-Co Scale) | Visually or instrumentally compare the sample with standard platinum-cobalt solutions to determine colorimetric values (e.g., APHA or Hazen units), assessing product color purity. |
| Impurity Analysis | Gas Chromatography (GC) or High-Performance Liquid Chromatography (HPLC) | GC is suitable for detecting volatile impurities (e.g., unreacted raw materials, solvent residues); HPLC is used for non-volatile or thermally unstable impurities separation and quantification. |
| Melting Point or Initial Melting Point | Capillary Melting Point Method | Heat a capillary tube containing the sample using a melting point apparatus and observe the temperature at which softening or initial melting occurs, used to assess purity and crystal form consistency. |
| Infrared Spectroscopy (IR) | Fourier Transform Infrared Spectroscopy (FT-IR) | Perform infrared scanning on the sample to obtain characteristic absorption peaks; compare with reference spectra to confirm molecular structure and functional groups (e.g., anhydride C=O stretching vibrations around 1770 cm⁻¹ and 1850 cm⁻¹). |
| Thermal Stability | Thermogravimetric Analysis (TGA) | Measure mass changes under programmed temperature increase to evaluate decomposition temperature and thermal degradation behavior, assessing storage and processing stability. |
| Residual Solvents | Gas Chromatography (GC) | Based on ICH guidelines, use headspace GC to detect organic solvents (e.g., toluene, acetone) potentially remaining from production processes, ensuring compliance with safety limits. |
Technical Specifications of Methyltetrahydrophthalic anhydride
| Test Item | Specification |
|---|---|
| Appearance | Colorless to white to yellow solid-liquid mixture |
| Purity | >=98.0% |
| Melting Point | 63–64°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | 450–470 mg KOH/g |
| Identification (NMR) | Consistent with structure |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
|
|
Download COA of Methyltetrahydrophthalic anhydride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Methyltetrahydrophthalic anhydride
Packaging of Methyltetrahydrophthalic anhydride
Industrial Methyltetrahydrophthalic anhydride 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply