Heptaethylene glycol Bulk Supply for Industrial Use
China Factory Direct
 |
|
| CAS number | 5617-32-3 |
| Product name | Heptaethylene glycol |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial GradeElectronic GradeCosmetic GradeFood Grade |
| Packaging | 25L/drum |
| 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 Heptaethylene glycol
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Heptaethylene glycol Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Heptaethylene glycol
| Industry | Application | Process |
|---|---|---|
| Pharmaceuticals | Used as a pharmaceutical excipient | Applied in the preparation of sustained-release formulations or as a solvent |
| Chemicals | Synthesis of surfactants | Modified via esterification or etherification reactions |
| Materials | Production of polymeric materials | Used as a plasticizer or crosslinking agent for polymers |
| Coatings | Coating additive | Applied to enhance film flexibility and substrate adhesion |
| Consumer Products | Personal care products | Used as a humectant or emulsifier |
| Textiles | Textile auxiliaries | Applied in fiber treatment or dyeing processes |
| Electronics | Electronic encapsulation materials | Used as an adhesive or insulating material |
Manufacturing Quality Control of Heptaethylene glycol
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Appearance | Visual Inspection | Assessment of physical state and color by direct observation under controlled lighting. |
| Color | APHA Color Scale | Comparison of sample color to platinum-cobalt standard solutions using visual or instrumental matching. |
| Acid Value | Acid-Base Titration | Neutralization of free acidic groups with standardized KOH solution using phenolphthalein indicator. |
| Hydroxyl Value | Acetylation Titration | Esterification of hydroxyl groups with acetic anhydride, followed by back-titration of unreacted anhydride. |
| Water Content | Karl Fischer Titration | Quantitative reaction of water with iodine and sulfur dioxide in a methanol-based reagent, measured potentiometrically. |
| Average Molecular Weight | Gel Permeation Chromatography (GPC) | Separation of polymer chains by hydrodynamic volume in solution, calibrated against polyethylene glycol standards. |
| Ethylene Oxide Residue | Gas Chromatography (GC) | Separation and quantification of residual ethylene oxide using flame ionization detection after headspace sampling. |
| Heavy Metals | ICP-OES | Multi-element quantification of metal impurities following acid digestion and plasma excitation/emission measurement. |
| Residue on Ignition | Gravimetric Analysis | Determination of non-volatile inorganic residue after high-temperature ashing and weighing. |
| Refractive Index | Refractometry | Measurement of light bending angle at air-sample interface using calibrated digital refractometer at specified temperature. |
| pH (10% aqueous solution) | pH Potentiometry | Electrochemical measurement of hydrogen ion activity using calibrated pH electrode in aqueous solution. |
| Assay (Purity) | HPLC-UV | Quantitative separation of heptaethylene glycol from related oligomers and impurities using reverse-phase column and UV detection. |
Technical Specifications of Heptaethylene glycol
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.0% |
| Single Impurity | <=0.3% |
| Refractive Index (n20/D) | 1.460–1.470 |
| Relative Density (20°C/25°C) | 1.085–1.095 g/cm³ |
| Odor | Characteristic mild odor |
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 Heptaethylene glycol
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Heptaethylene glycol
Packaging of Heptaethylene glycol
Industrial Heptaethylene glycol 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