Quinhydrone Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 106-34-3 |
| Product name | Quinhydrone |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeReagent 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 Quinhydrone
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Quinhydrone Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Quinhydrone
| Industry | Application | Process |
|---|---|---|
| Analytical Chemistry | Used as a redox indicator and reference material for pH electrodes | Preparation of quinhydrone electrodes for solution pH measurement (typically within pH 1–9) |
| Electrochemistry | Employed as an electrode material or component of charge-transfer complexes | Construction of reversible redox systems for electrochemical sensor and battery research |
| Pharmaceutical Intermediates | Serves as a precursor in the synthesis of certain pharmaceuticals or bioactive molecules | Participation in organic synthesis reactions, including redox and radical reaction pathways |
| Dye Industry | Functions as an intermediate in dye or pigment production | Used as an auxiliary redox reagent or structural unit in anthraquinone dye synthesis |
| Research | Investigation of electron transfer mechanisms and radical chemistry | Modeling the redox behavior of quinone compounds in biological systems |
Manufacturing Quality Control of Quinhydrone
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Observe the sample's color, state, and presence of impurities under natural light or standard illumination. Qualified products are typically blue-black crystalline powder. |
| Assay | Ultraviolet-Visible Spectrophotometry (UV-Vis) | Quantify the concentration of quinhydrone based on its characteristic absorption peaks at specific wavelengths (e.g., around 280 nm and 350 nm) using a calibration curve. pH and solvent conditions must be controlled to ensure stability. |
| High-Performance Liquid Chromatography (HPLC) | Utilize a reversed-phase C18 column with methanol-water or acetonitrile-water as the mobile phase, detected by a UV detector. This method can simultaneously separate and quantify quinhydrone and its degradation products (e.g., benzoquinone, hydroquinone). | |
| pH Value | pH Meter Method | Prepare a solution of the sample at a specified concentration (e.g., 0.1%) in water and measure its acidity or alkalinity using a calibrated pH meter, maintaining it within a designated range (typically near neutral). |
| Drying Loss | Thermogravimetric Analysis (TGA) or Oven Drying Method | Dry the sample at 105°C to constant weight and calculate the percentage weight loss, reflecting the content of moisture and volatile impurities. |
| Residue on Ignition | Gravimetric Method | Incinerate the sample at high temperature; weigh the residual inorganic material to determine the level of inorganic impurities. |
| Heavy Metals | Atomic Absorption Spectroscopy (AAS) or ICP-MS | Digest the sample and measure the concentrations of heavy metal elements such as lead, mercury, cadmium, and arsenic to ensure compliance with pharmacopeial or industrial limits. |
| Related Substances (Impurities) | HPLC Method | Use HPLC to detect oxidation or reduction by-products such as benzoquinone and hydroquinone in quinhydrone to evaluate purity and stability. |
| Melting Point | Melting Point Determination | Measure the melting temperature range using a melting point apparatus; quinhydrone typically decomposes upon melting at approximately 170–180°C. |
| Solubility | Solubility Test | Observe solubility behavior in solvents such as water, ethanol, methanol, and acetone, ensuring it conforms to specified solubility characteristics. |
Technical Specifications of Quinhydrone
| Test Item | Specification |
|---|---|
| Appearance | Green crystalline solid |
| Purity | >=98.0% |
| Melting Point | 173-177°C |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Heavy Metals | <=10 ppm |
| Residue on Ignition | <=0.1% |
| Identification (NMR) | 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 Quinhydrone
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Quinhydrone
Packaging of Quinhydrone
Industrial Quinhydrone 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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