4,4'-DIHYDROXYDIPHENYLMETHANE Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 620-92-8 |
| Product name | 4,4'-DIHYDROXYDIPHENYLMETHANE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeElectronic 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) |
QUOTE TYPE
PACKAGING TYPE
TOTAL QUANTITY(KG)
PREFERRED SHIPPING METHOD
YOUR COMPANY
YOUR E-MAIL
Calculate Summary
Based on current marketvolatility and material availability.
Documents We Provide for 4,4'-DIHYDROXYDIPHENYLMETHANE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk 4,4'-DIHYDROXYDIPHENYLMETHANE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of 4,4'-DIHYDROXYDIPHENYLMETHANE
| Industry | Application | Process |
|---|---|---|
| Polymers | High-performance crosslinker or monomer for epoxy resins, polycarbonates, etc. | Applied in polymerization and condensation reactions |
| Coatings & Adhesives | Synthesizing high-temperature-resistant and corrosion-resistant coatings or adhesives | Applied in chemical modification and copolymerization |
| Electronic Encapsulation Materials | Curing agent for semiconductor encapsulation materials to enhance electrical insulation and thermal stability | Applied in thermal curing and compression molding |
| Pharmaceutical Intermediates | Key intermediate in synthesizing certain antimicrobial or anti-inflammatory drugs | Applied in organic synthesis and catalytic reactions |
| Rubber Industry | Component of rubber antioxidants or vulcanization accelerators | Applied in compounding and vulcanization |
| Flame-Retardant Materials | Additive for manufacturing flame-retardant polymeric materials | Applied in blending and extrusion molding |
Manufacturing Quality Control of 4,4'-DIHYDROXYDIPHENYLMETHANE
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | HPLC-UV | Quantitative determination using reverse-phase HPLC with UV detection at 275 nm, comparing peak area against a certified reference standard. |
| Melting Point | Capillary Melting Point Apparatus | Thermal transition measured by observing solid-to-liquid phase change in a capillary tube under controlled heating rate. |
| Water Content | Karl Fischer Titration | Volumetric or coulometric titration based on the stoichiometric reaction of iodine with water in pyridine/methanol medium. |
| Residue on Ignition | Gravimetric Analysis | Mass of non-volatile inorganic residue after high-temperature ashing at 700-800 C, expressed as weight percent. |
| Heavy Metals (as Pb) | AAS (Flame or Graphite Furnace) | Atomic absorption measurement of metal ion concentration after acid digestion and matrix matching. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride anions using anion-exchange column with conductivity detection. |
| Related Substances | HPLC-DAD | Identification and quantification of structurally similar impurities using diode-array detection and retention time comparison. |
| Color (APHA) | Visual Comparison or Spectrophotometer | Measurement of yellowness index by comparing sample solution absorbance at 430 nm to APHA platinum-cobalt standard scale. |
| Acid Value | Acid-Base Titration | Neutralization of acidic impurities with standardized KOH ethanol solution using phenolphthalein indicator. |
| Ash Content | Gravimetric Analysis | Weight of inorganic residue remaining after combustion at 500-600 C, reported as percent by mass. |
| Sulfated Ash | Gravimetric Analysis | Residue weight after ignition with sulfuric acid pretreatment to convert metals to sulfates. |
| Organic Volatile Impurities | GC-FID | Separation and quantification of residual solvents and volatile organics using capillary GC with flame ionization detection. |
Technical Specifications of 4,4'-DIHYDROXYDIPHENYLMETHANE
| Test Item | Specification |
|---|---|
| Appearance | Pale-yellow solid |
| Purity | >=98.0% (GC-MS) |
| Melting Point | 135–139°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
|
|
Download COA of 4,4'-DIHYDROXYDIPHENYLMETHANE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of 4,4'-DIHYDROXYDIPHENYLMETHANE
Packaging of 4,4'-DIHYDROXYDIPHENYLMETHANE
Industrial 4,4'-DIHYDROXYDIPHENYLMETHANE 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.
Use Bulk
Supply Factory
Direct ISO 9001
Certified Samples
Available Stable
Supply