7,7,8,8-Tetracyanoquinodimethane Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 1518-16-7 |
| Product name | 7,7,8,8-Tetracyanoquinodimethane |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeElectronic GradeReagent GradeIndustrial 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 7,7,8,8-Tetracyanoquinodimethane
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 7,7,8,8-Tetracyanoquinodimethane Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 7,7,8,8-Tetracyanoquinodimethane
| Industry | Application | Process |
|---|---|---|
| Electronic Materials | Organic Semiconductor Material | Used as an n-type dopant in organic field-effect transistors (OFETs) and organic solar cells, incorporated into the organic semiconductor layer via vapor deposition or solution spin-coating |
| Electronic Materials | Charge Transport Layer Material | Applied as an electron transport layer in organic light-emitting diodes (OLEDs), deposited as a thin film via vacuum thermal evaporation or spin coating |
| Chemical Synthesis | Strong Oxidizing Agent | Employed in organic synthesis for dehydrogenation reactions or oxidation of aromatic compounds, conducted in inert solvents via solution-phase reaction |
| Energy Materials | Organic Thermoelectric Material | Used as a dopant to enhance the electrical conductivity and Seebeck coefficient of organic conductors, processed via solution doping or solid-state diffusion |
| Research Field | Electron Acceptor Research | Applied in molecular electronics and supramolecular chemistry research as a model acceptor molecule for spectroscopic and electrochemical characterization, experimentally studied via single-crystal growth or thin-film fabrication |
Manufacturing Quality Control of 7,7,8,8-Tetracyanoquinodimethane
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantifies TCNQ concentration using reverse-phase chromatography with UV detection at 254 nm, comparing peak area to a certified reference standard. |
| Moisture Content | Karl Fischer Titration | Measures water content via coulometric or volumetric titration using iodine generation in a methanol-based reagent system. |
| Residue on Ignition | Gravimetric Analysis | Determines inorganic ash content by high-temperature incineration followed by weighing of residual non-volatile matter. |
| Heavy Metals (as Pb) | ICP-OES | Quantifies total heavy metals after acid digestion by measuring atomic emission intensities of metal elements in plasma. |
| Chloride Impurity | Ion Chromatography | Separates and quantifies chloride ions using anion-exchange column and conductivity detection. |
| Sulfate Impurity | Ion Chromatography | Separates and quantifies sulfate ions using anion-exchange column and conductivity detection. |
| Organic Volatile Impurities | GC-FID | Detects and quantifies residual solvents using capillary gas chromatography with flame ionization detection. |
| Particle Size Distribution | Laser Diffraction | Measures particle size distribution by analyzing angular variation in laser light scattering from dispersed particles. |
| Melting Point | Capillary Melting Point Apparatus | Determines temperature range at which solid TCNQ transitions to liquid using controlled heating and visual observation. |
| Color (APHA) | Visual Comparison or Spectrophotometer | Evaluates color intensity against APHA platinum-cobalt standards using transmitted light at 430 nm. |
| Bulk Density | ASTM D1895 | Measures mass per unit volume of freely settled powder using a calibrated cylinder and balance. |
| pH of Aqueous Suspension | pH Meter | Determines acidity/basicity of a standardized water suspension using a calibrated glass electrode pH meter. |
Technical Specifications of 7,7,8,8-Tetracyanoquinodimethane
| Test Item | Specification |
|---|---|
| Appearance | Yellow-brown solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 210–215 °C |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Water Content (KF) | <=0.5% |
| Identification (NMR) | Consistent with structure |
| Identification (IR) | Consistent with structure |
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 7,7,8,8-Tetracyanoquinodimethane
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 7,7,8,8-Tetracyanoquinodimethane
Safety Information of 7,7,8,8-Tetracyanoquinodimethane
| Pictograms |  |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of 7,7,8,8-Tetracyanoquinodimethane
Industrial 7,7,8,8-Tetracyanoquinodimethane 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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