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HS Code |
872812 |
| Chemicalname | Thiodiphthalic Anhydride |
| Casnumber | 31534-21-3 |
| Molecularformula | C16H6O5S |
| Molecularweight | 310.29 |
| Appearance | Off-white to yellowish powder |
| Meltingpoint | 276-280°C |
| Boilingpoint | Decomposes before boiling |
| Solubility | Insoluble in water; soluble in organic solvents |
| Density | 1.57 g/cm³ (approximate) |
| Odor | Odorless |
| Purity | Typically ≥98% |
| Storagetemperature | Store at room temperature, keep container tightly closed |
| Synonyms | 4,4'-Thiodiphthalic anhydride |
As an accredited Thiodiphthalic Anhydride factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
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Purity 99%: Thiodiphthalic Anhydride with 99% purity is used in specialty polyimide synthesis, where it ensures high polymer thermal stability. Melting Point 256°C: Thiodiphthalic Anhydride with a melting point of 256°C is used in high-temperature-resistant coatings, where it facilitates superior heat resistance. Molecular Weight 282.27 g/mol: Thiodiphthalic Anhydride of 282.27 g/mol molecular weight is used in advanced resin formulations, where it enables precise molecular architecture control. Particle Size <50 µm: Thiodiphthalic Anhydride with particle size under 50 µm is used in composite materials, where it promotes homogeneous dispersion and enhanced mechanical strength. Stability Temperature up to 300°C: Thiodiphthalic Anhydride with stability temperature up to 300°C is used in electronic encapsulation, where it maintains structural integrity under thermal cycling. Low Hydrolysis Rate: Thiodiphthalic Anhydride with low hydrolysis rate is used in moisture-sensitive adhesives, where it provides extended application lifetime. Reactivity Index 0.98: Thiodiphthalic Anhydride with a reactivity index of 0.98 is used in precision chemical modification, where it achieves high conversion rates in functionalization processes. Acid Anhydride Content ≥97%: Thiodiphthalic Anhydride with acid anhydride content ≥97% is used in curing epoxy resins, where it guarantees efficient cross-linking density. Solubility in DMF >95%: Thiodiphthalic Anhydride with solubility in DMF exceeding 95% is used in advanced film production, where it allows for defect-free uniform coatings. Thermal Decomposition Above 310°C: Thiodiphthalic Anhydride with thermal decomposition above 310°C is used in fire-resistant plastics, where it imparts high char yield and retardant efficacy. |
| Packing | Sealed 250g amber glass bottle with tamper-evident cap, labeled with hazard symbols and product information for Thiodiphthalic Anhydride. |
| Container Loading (20′ FCL) | 20′ FCL container loading of Thiodiphthalic Anhydride involves secure, moisture-proof packaging, maximizing cargo space, complying with chemical safety regulations. |
| Shipping | Thiodiphthalic Anhydride should be shipped in tightly sealed, non-reactive containers, protected from moisture and incompatible substances. Transport in accordance with local, national, and international regulations for hazardous chemicals. Ensure labeling aligns with regulatory requirements. Handle with appropriate personal protective equipment and store in a cool, dry, well-ventilated area during transit. |
| Storage | Thiodiphthalic anhydride should be stored in a tightly closed container, in a cool, dry, and well-ventilated area away from moisture and incompatible materials such as strong oxidizers and bases. Protect it from physical damage, direct sunlight, and sources of ignition. Store in a designated chemical storage area with adequate ventilation and proper labeling to prevent accidental exposure or contamination. |
| Shelf Life | Thiodiphthalic Anhydride generally has a shelf life of 2–3 years when stored in tightly sealed containers in a cool, dry place. |
Competitive Thiodiphthalic Anhydride prices that fit your budget—flexible terms and customized quotes for every order.
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