China Factory Direct
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| CAS number | 13799-90-1 |
| Product name | 2,5-DICHLOROTEREPHTHALIC ACID |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradeMaterial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Synthesis of antibacterial drug intermediates | Introduces the chlorobenzoic acid structure via acid chloride formation, coupling, or nucleophilic substitution |
| Pesticides | Synthesis of herbicide and insecticide intermediates | Serves as an aromatic ring scaffold for constructing active molecules through esterification, amination, or condensation |
| Dyes | Synthesis of high-performance azo and disperse dyes | Acts as a diazo component in coupling reactions to form chlorinated aromatic chromophores |
| Polymers | Modified monomer for polyester and polyamide synthesis | Introduces rigid chlorinated phenyl rings via condensation polymerization to enhance thermal stability and flame retardancy |
| Organic Synthesis | Building block for aromatic carboxylic acid derivatives | Constructs complex organic molecular frameworks via reduction, esterification, amidation, and related transformations |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantification using reverse-phase HPLC with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Related Substances | HPLC-UV | Separation and quantification of impurities (e.g., mono-chloro isomers, unreacted precursors) via gradient HPLC-UV against reference standards. |
| Residual Solvents | GC-FID | Headspace GC with flame ionization detection to quantify common solvents (e.g., DMF, toluene, methanol) based on calibrated response factors. |
| Heavy Metals (as Pb) | ICP-OES | Multi-element determination after acid digestion; total heavy metals reported as lead equivalent using calibration curves. |
| Chloride Content | Potentiometric Titration | Titration with silver nitrate using a silver indicator electrode; endpoint detected by potential inflection. |
| Moisture Content | Karl Fischer Coulometric Titration | Electrochemical generation of iodine to react stoichiometrically with water; water content calculated from coulombs consumed. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measured by observing solid-to-liquid phase change in a capillary tube under controlled heating rate. |
| Ash Content | Gravimetric Analysis | Ignition at 550-600 C to oxidize organic matter; residue weighed after cooling in desiccator. |
| Particle Size Distribution | Laser Diffraction | Analysis of light scattering pattern from dispersed particles to calculate volume-based size distribution. |
| Acid Value | Acid-Base Titration | Titration with standardized potassium hydroxide solution in ethanol/water; acid value calculated from KOH consumption per gram sample. |
| Sulfated Ash | Gravimetric Analysis | Sample treated with sulfuric acid prior to ignition; residual inorganic sulfate salts weighed after high-temperature ashing. |
| Bulk Density | Graduated Cylinder Method | Mass of freely poured sample divided by its unsettled volume in a calibrated cylinder. |
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 248-252°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Residue on Ignition | <=0.1% |
| Acid Value (mg KOH/g) | 370-390 mg KOH/g |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
| Pictograms | ![]() |
| Signal Word | Warning |
| Safety Data Sheet | |
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.