4-tert-Butylphthalic anhydride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 32703-79-0 |
| Product name | 4-tert-Butylphthalic anhydride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial GradeSpecialty GradeCosmetic GradeFood 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 4-tert-Butylphthalic anhydride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4-tert-Butylphthalic anhydride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4-tert-Butylphthalic anhydride
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of pharmaceutical intermediates | Used as an anhydride in esterification, acylation, and other organic synthesis reactions |
| Plastics | Polymer stabilizer | Applied as a thermal stabilizer for polyvinyl chloride (PVC) and other polymers |
| Coatings | Resin synthesis | Used in the synthesis of unsaturated polyester resins, epoxy resins, and related systems |
| Fragrances | Fragrance synthesis | Employed as a raw material for synthesizing certain aromatic compounds |
| Chemical manufacturing | Production of anhydride-based chemicals | Used to produce other phthalic anhydride derivatives |
Manufacturing Quality Control of 4-tert-Butylphthalic 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 color by observation against standard white background under controlled lighting. |
| Melting Point | Capillary melting point apparatus | Determination of temperature range at which solid transitions to liquid, indicating purity and identity. |
| Moisture Content | Karl Fischer titration | Electrochemical titration using iodine-based reagent to quantify water content via stoichiometric reaction. |
| Residue on Ignition | Gravimetric analysis | Measurement of non-volatile inorganic residue after high-temperature ashing and cooling to constant weight. |
| Heavy Metals | ICP-OES | Multi-element quantification of metallic impurities (e.g., Pb, Cd, Fe, Cu) by atomic emission spectroscopy after acid digestion. |
| Chloride Content | Potentiometric titration with silver nitrate | Titration based on formation of insoluble silver chloride, detected by silver-ion selective electrode. |
| Acid Value | Acid-base titration with NaOH | Neutralization of acidic groups using standardized sodium hydroxide solution with phenolphthalein endpoint. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separation and quantification of residual solvents or low-boiling impurities using flame ionization detection. |
| Particle Size Distribution | Laser diffraction | Analysis of scattered laser light intensity to determine size distribution of solid particles in suspension. |
| Bulk Density | Graduated cylinder method | Mass per unit volume measured by pouring sample into calibrated cylinder and tapping to settle. |
| Sulfated Ash | Gravimetric analysis | Determination of inorganic residue after combustion with sulfuric acid pretreatment to convert metals to sulfates. |
Technical Specifications of 4-tert-Butylphthalic anhydride
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 132–136°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | 480–495 mg KOH/g |
| Identification (NMR) | Conforms to reference spectrum |
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-tert-Butylphthalic anhydride
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4-tert-Butylphthalic anhydride
Safety Information of 4-tert-Butylphthalic anhydride
| Pictograms |  |
| Signal Word | Warning |
| Safety Data Sheet | |
Packaging of 4-tert-Butylphthalic anhydride
Industrial 4-tert-Butylphthalic 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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