METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2422-91-5 |
| Product name | METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical Grade |
| Packaging | 25L/drum200L/drum1000L/IBC |
| 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 METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE
| Industry | Application | Process |
|---|---|---|
| Polymers | Used to produce polyurethane elastomers, coatings, and adhesives | Reacted with polyols to form polyurethane |
| Pharmaceutical Intermediates | Synthesizes specific structural motifs in drug molecules | Incorporated into target molecules via organic synthesis |
Manufacturing Quality Control of METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE
| Test Item | Common Test Methods | Method Overview |
|---|---|---|
| Isocyanate Group (–NCO) Content | Dibutylamine Titration Method (GB/T 12009.4) | This method relies on the quantitative reaction between dibutylamine and isocyanate groups to form urea. Excess dibutylamine is back-titrated with a standard hydrochloric acid solution. The –NCO content is calculated based on the amount of HCl consumed. Suitable for liquid or dissolved samples, this is an internationally recognized standard method. |
| Purity and Component Analysis | Gas Chromatography (GC) | Capillary GC columns are used to separate tris(phenyl) methane triisocyanate, its monomers, dimers, and possible impurities. Flame ionization detection (FID) enables quantification of each component and determination of main ingredient purity. Ideal for trace impurity detection. |
| Moisture Content | Karl Fischer Titration (GB/T 6283) | The Karl Fischer reagent reacts quantitatively with water, and moisture content is determined by detecting the endpoint via potentiometric or coulometric methods. Suitable for trace moisture analysis. Critical for isocyanates, which are prone to hydrolysis, to ensure product stability. |
| Appearance and Color | Visual Comparison / Colorimeter | Sample appearance (clear, no suspended particles) is observed under natural or standard lighting. Color is measured quantitatively using platinum-cobalt scale or APHA color standards to ensure no discoloration or degradation has occurred. |
| Melting Point / Softening Point | Melting Point Apparatus / Softening Point Tester (ASTM E28) | As tris(phenyl) methane triisocyanate is solid, its melting or softening point range is determined by controlled heating. Used for identity verification and batch consistency assessment, typically in the range of 50–70°C. |
| Heavy Metal Content | Atomic Absorption Spectroscopy (AAS) or ICP-MS | After sample digestion, AAS or inductively coupled plasma mass spectrometry (ICP-MS) is used to detect residual heavy metals such as lead, cadmium, mercury, and arsenic, ensuring compliance with environmental and safety regulations (e.g., RoHS, REACH). |
| Volatile Organic Compounds (VOC) | Gas Chromatography-Mass Spectrometry (GC-MS) | Using headspace injection or solvent extraction, GC-MS identifies and quantifies residual volatile solvents (e.g., toluene, xylene), ensuring the product meets low-VOC environmental requirements. |
| Thermal Stability (TGA) | Thermogravimetric Analysis (TGA) | The sample is heated under programmed temperature conditions in nitrogen or air atmosphere while monitoring mass change. Evaluates decomposition temperature and thermal stability, helping identify unstable impurities or decomposition products. |
| Chloride Ion Content | Ion Chromatography (IC) | After dissolving the sample, chloride ions are separated on an ion-exchange column and detected by conductivity. Used to control chlorine-containing impurities from raw materials (e.g., phosgene residues), preventing corrosiveness or unwanted side reactions. |
| Viscosity (in liquid state) | Rotational Viscometer Method (GB/T 9751) | Measures dynamic viscosity of molten or dissolved samples at a specified temperature (e.g., 60°C). Used for process control and batch-to-batch consistency evaluation. Applicable to liquid derivatives of tris(phenyl) methane triisocyanate. |
Technical Specifications of METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE
| Test Item | Specification |
|---|---|
| Appearance | Clear, colorless to pale yellow liquid |
| Purity | >=98.0% (by GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.620–1.640 |
| Relative Density (20°C/25°C) | 1.22–1.26 g/cm³ |
| Odor | Characteristic mild aromatic odor |
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 METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE
Safety Information of METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE
| Pictograms |   |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE
Industrial METHYLIDYNETRI-P-PHENYLENE TRIISOCYANATE 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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