cyclohex-1,4-ylene diisocyanate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 2556-36-7 |
| Product name | cyclohex-1,4-ylene diisocyanate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty 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 cyclohex-1,4-ylene diisocyanate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk cyclohex-1,4-ylene diisocyanate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of cyclohex-1,4-ylene diisocyanate
| Industry | Application | Process |
|---|---|---|
| Chemicals | Production of polyurethane materials | Used in the synthesis of polyurethane prepolymers |
| Coatings | Manufacturing of high-performance coatings | Acts as a crosslinker in curing reactions |
| Adhesives | Manufacturing of high-temperature-resistant adhesives | Reacts with polyols to form durable adhesive layers |
| Foams | Production of flexible or rigid foams | Participates in foaming reactions to form three-dimensional network structures |
| Textiles | Production of functional textile coatings | Enhances coating abrasion resistance and elasticity |
Manufacturing Quality Control of cyclohex-1,4-ylene diisocyanate
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (HDI content) | Gas Chromatography (GC) with FID detection | Quantifies HDI by separation on a capillary column and flame ionization detection relative to internal standard. |
| Isomer ratio (trans/cis) | Gas Chromatography (GC) with high-resolution column | Separates and quantifies trans- and cis-HDI isomers based on retention time differences. |
| Water content | Karl Fischer titration | Measures water via coulometric or volumetric titration using iodine generated in situ from KF reagent. |
| Acid number | Acid-base titration with NaOH in toluene/methanol | Determines acidic impurities by titration with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Color (APHA) | Visual comparison or spectrophotometric measurement at 455 nm | Evaluates yellowness by comparing sample absorbance at 455 nm to APHA platinum-cobalt standards. |
| Density at 20 C | Digital density meter (oscillating U-tube) | Measures mass per unit volume based on resonant frequency shift of a vibrating U-shaped tube filled with sample. |
| Viscosity at 25 C | Rotational viscometry | Determines resistance to flow under shear using a spindle rotating in sample at controlled temperature. |
| Residual solvents (e.g., toluene, xylene) | Gas Chromatography (GC) with headspace sampling | Identifies and quantifies volatile organic solvents by thermal desorption into GC column. |
| Chloride content | Ion chromatography (IC) or potentiometric titration with AgNO3 | Detects chloride ions via separation on anion-exchange column or argentometric titration endpoint detection. |
| Iron content | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Quantifies trace iron after acid digestion by measuring atomic emission intensity at characteristic wavelength. |
| Total aldehyde content | UV-Vis spectrophotometry after derivatization with DNPH | Measures aldehydes via hydrazone formation with 2,4-dinitrophenylhydrazine and absorbance at ~450 nm. |
| Thermal stability (onset decomposition temp) | Differential Scanning Calorimetry (DSC) | Determines onset temperature of exothermic decomposition by monitoring heat flow vs. temperature ramp. |
Technical Specifications of cyclohex-1,4-ylene diisocyanate
| Test Item | Specification |
|---|---|
| Appearance | Colorless to pale yellow liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.495–1.505 |
| Relative Density (20°C/25°C) | 1.065–1.075 g/cm³ |
| Odor | Characteristic pungent 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 cyclohex-1,4-ylene diisocyanate
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
Safety Information of cyclohex-1,4-ylene diisocyanate
| Pictograms |    |
| Signal Word | Danger |
| Safety Data Sheet | |
Packaging of cyclohex-1,4-ylene diisocyanate
Industrial cyclohex-1,4-ylene diisocyanate 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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