Mono-methyl isophthalate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1877-71-0 |
| Product name | Mono-methyl isophthalate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/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 Mono-methyl isophthalate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Mono-methyl isophthalate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Mono-methyl isophthalate
| Industry | Application | Process |
|---|---|---|
| Polymers | Monomer for polyester resins, enhancing thermal stability, weather resistance, and mechanical properties | Condensation polymerization with diols (e.g., ethylene glycol, neopentyl glycol) to produce modified polyester resins |
| Coatings | Film-forming component for high-performance coatings, improving coating hardness, gloss, and chemical resistance | Used as a comonomer in polyester polyol synthesis, followed by reaction with isocyanates to produce polyurethane coatings |
| Adhesives | Reinforcing component for high-performance adhesives, improving initial tack, cohesive strength, and aging resistance | Synthesized into polyurethane adhesives via pre-polymerization and chain extension with polyols and polyisocyanates |
| Liquid Crystal Polymers | Structural unit for liquid crystalline polyarylates, imparting high rigidity and thermal stability | Melt-phase condensation polymerization with comonomers such as p-hydroxybenzoic acid and 4,4'-dihydroxybiphenyl to produce thermotropic liquid crystal polymers |
Manufacturing Quality Control of Mono-methyl isophthalate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantitative determination based on peak area comparison against a certified reference standard using reversed-phase chromatography. |
| Moisture Content | Karl Fischer titration | Electrochemical titration measuring water content via iodine-sulfur dioxide reaction in anhydrous methanol-based solvent. |
| Acid Value | Acid-base titration with NaOH | Neutralization of free carboxylic acid groups using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Residue on Ignition | Gravimetric analysis (weight loss on ignition) | Measurement of non-volatile inorganic residue after high-temperature combustion at 700–800 °C. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element quantification of trace metals by measuring atomic emission intensities following microwave-assisted acid digestion. |
| Chloride Impurity | Ion chromatography (IC) | Separation and quantification of chloride anions using suppressed conductivity detection after aqueous extraction. |
| Color (APHA) | Visual or spectrophotometric comparison | Measurement of yellowness index relative to platinum-cobalt standard solutions at 430 nm. |
| Melting Point | Capillary melting point apparatus | Determination of solid-to-liquid transition temperature range using calibrated capillary tube method per USP <741>. |
| Residual Solvents (e.g., Methanol) | Gas chromatography (GC-FID) | Separation and quantification of volatile organic solvents using flame ionization detection and internal standard calibration. |
| Related Substances | HPLC with gradient elution and UV detection | Identification and quantification of structurally similar impurities (e.g., isophthalic acid, dimethyl isophthalate) using retention time and response factor matching. |
| Sulfated Ash | Gravimetric analysis | Determination of inorganic sulfate residue after sulfuric acid treatment and incineration at 500–600 °C. |
| Particle Size Distribution | Laser diffraction | Analysis of dry or wet dispersed sample based on light scattering patterns to determine D10, D50, D90 values. |
| Specific Optical Rotation | Polarimetry | Measurement of rotation angle of plane-polarized light induced by chiral impurities (if applicable) at specified wavelength and temperature. |
| pH of Aqueous Suspension | Potentiometric pH measurement | Determination of surface acidity/basicity by measuring hydrogen ion activity in saturated aqueous slurry (1:10 w/v). |
Technical Specifications of Mono-methyl isophthalate
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (by LC-MS) |
| Melting Point | 142–146 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | 320–340 mg KOH/g |
| Residue on Ignition | <=0.1% |
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 Mono-methyl isophthalate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Mono-methyl isophthalate
Packaging of Mono-methyl isophthalate
Industrial Mono-methyl isophthalate 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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