Phenylmaleic anhydride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 36122-35-7 |
| Product name | Phenylmaleic anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial GradeSpecialty 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 Phenylmaleic anhydride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Phenylmaleic anhydride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Phenylmaleic anhydride
| Industry | Application | Process |
|---|---|---|
| Pharmaceutical Intermediates | Synthesis of pharmaceutical intermediates | Used for chemical synthesis reactions |
| Coatings Industry | Production of coatings and resins | Applied in polymerization reactions |
| Plastics Industry | Production of thermoplastic plastics | Applied in addition polymerization |
| Adhesives Industry | Manufacture of adhesives | Used for chemical synthesis reactions |
Manufacturing Quality Control of Phenylmaleic anhydride
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantification based on peak area comparison against a certified reference standard using reversed-phase chromatography and UV absorbance at 254 nm. |
| Appearance | Visual inspection | Assessment of physical state and clarity in a clean, colorless glass container under controlled white light. |
| Color (APHA) | APHA color scale comparison | Visual comparison of sample solution against standardized platinum-cobalt color standards. |
| Moisture content | Karl Fischer titration | Electrochemical titration using iodine generated in situ to quantify water via stoichiometric reaction with pyridine/methanol reagent. |
| Acid value | Acid-base titration with NaOH | Neutralization of acidic impurities (e.g., residual phthalic acid) using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Residue on ignition | Gravimetric analysis | Weighing of non-volatile residue remaining after high-temperature ashing in a muffle furnace at 600 C. |
| Heavy metals (as Pb) | ICP-OES | Multi-element quantification of trace metals by measuring atomic emission intensities following microwave-assisted acid digestion. |
| Chloride content | Ion chromatography | Separation and conductivity detection of chloride anions after aqueous extraction and filtration. |
| Melting point | Capillary melting point apparatus | Determination of temperature range over which solid transitions to liquid using calibrated capillary tube method. |
| Organic volatiles (residual solvents) | Headspace GC-FID | Quantification of volatile organic impurities by gas chromatographic separation and flame ionization detection after thermal equilibration. |
| Specific optical rotation | Polarimetry | Measurement of angular rotation of plane-polarized light passing through a solution of known concentration and path length. |
| Particle size distribution | Laser diffraction | Analysis of scattered laser light intensity patterns to calculate volume-based particle size distribution in dispersed suspension. |
Technical Specifications of Phenylmaleic anhydride
| Test Item | Specification |
|---|---|
| Appearance | White to off-white crystalline solid |
| Purity | >=98.5% |
| Melting Point | 128.0–132.0°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | 450–470 mg KOH/g |
| Color (APHA/Pt-Co) | <=50 |
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 Phenylmaleic anhydride
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NMR Spectra of Phenylmaleic anhydride
Packaging of Phenylmaleic anhydride
Industrial Phenylmaleic 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.
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