TEREPHTHALIC DIHYDRAZIDE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 136-64-1 |
| Product name | TEREPHTHALIC DIHYDRAZIDE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeSpecialty GradeMaterial 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 TEREPHTHALIC DIHYDRAZIDE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk TEREPHTHALIC DIHYDRAZIDE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of TEREPHTHALIC DIHYDRAZIDE
| Industry | Application | Process |
|---|---|---|
| Polymers | Monomer for polyamide and polyimide synthesis | Condensation polymerization with diacids or dicarboxylic acid chlorides to produce high-performance polymers |
| Dyes & Pigments | Intermediate for azo dye and disperse dye synthesis | Coupling reaction with diazonium salts to generate colored compounds |
| Pharmaceutical Chemistry | Structural building block in drug molecules | Hydrazide group introduction via acylation or condensation reactions for antitumor or antimicrobial drug synthesis |
| Metal Chelating Agents | Selective chelation of transition metal ions | Reaction with metal salt solutions to form stable complexes for separation or analytical applications |
| Adhesives & Coatings | Crosslinker to enhance thermal resistance and mechanical properties | Reaction with polyisocyanates or epoxy resins to form crosslinked networks |
Manufacturing Quality Control of TEREPHTHALIC DIHYDRAZIDE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC with UV detection | Quantification based on peak area comparison against certified reference standard using reversed-phase chromatography and UV absorbance at 254 nm. |
| Moisture Content | Karl Fischer titration | Electrochemical titration where iodine reacts stoichiometrically with water in a methanol-based solvent system. |
| Residue on Ignition | Gravimetric analysis | Sample is ignited at 700-800 C to oxidize organic matter; inorganic residue is weighed after cooling in a desiccator. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantitative measurement of metal ion concentration via absorption of characteristic wavelength light by ground-state atoms in flame or graphite furnace. |
| Chloride Impurity | Ion Chromatography (IC) | Separation of anions on an ion-exchange column followed by conductivity detection; chloride quantified via calibration curve. |
| Sulfate Impurity | Barium sulfate gravimetric method | Precipitation of sulfate as BaSO4 in acidic medium, followed by filtration, drying, and weighing of the precipitate. |
| Iron Content | ICP-OES | Multi-element detection by measuring intensity of atomic emission lines from plasma-excited sample atoms. |
| Melting Point | Capillary melting point apparatus | Thermal transition observed visually as the temperature range over which solid transforms to liquid under controlled heating. |
| Organic Volatile Impurities | Gas Chromatography (GC-FID) | Separation and quantification of volatile impurities using capillary column and flame ionization detection. |
| pH of Aqueous Solution | Potentiometric pH measurement | Hydrogen ion activity determined using calibrated glass electrode and reference electrode in a 1% w/v aqueous suspension. |
| Particle Size Distribution | Laser Diffraction | Analysis of angular scattering pattern of laser beam passing through dispersed particles to calculate size distribution. |
| Bulk Density | Graduated cylinder method | Mass of material freely poured into a standardized cylinder divided by its settled volume. |
Technical Specifications of TEREPHTHALIC DIHYDRAZIDE
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (HPLC) |
| Melting Point | 215–220 °C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Heavy Metals | <=10 ppm |
| 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 TEREPHTHALIC DIHYDRAZIDE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of TEREPHTHALIC DIHYDRAZIDE
Packaging of TEREPHTHALIC DIHYDRAZIDE
Industrial TEREPHTHALIC DIHYDRAZIDE 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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