Hydroxy-PEG-5-t-butyl ester Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 518044-32-1 |
| Product name | Hydroxy-PEG-5-t-butyl ester |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeIndustrial GradeMaterial GradeSpecialty 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) |
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Documents We Provide for Hydroxy-PEG-5-t-butyl ester
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Hydroxy-PEG-5-t-butyl ester Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Hydroxy-PEG-5-t-butyl ester
| Industry | Application | Process |
|---|---|---|
| Chemical | Solvent | Mixing and dissolution |
| Pharmaceutical | Intermediate in drug synthesis | Esterification and condensation reactions |
| Fine Chemical | Production of fragrance and cosmetic ingredients | Reaction and purification |
| Plastics and Rubber | Additive to enhance material performance | Blending and extrusion molding |
Manufacturing Quality Control of Hydroxy-PEG-5-t-butyl ester
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (Purity) | Gas Chromatography (GC) with FID detection | Quantitative determination based on peak area comparison against a certified reference standard using a calibrated column and carrier gas. |
| Water Content | Karl Fischer Titration | Electrochemical titration where iodine reacts stoichiometrically with water in an anhydrous solvent containing iodide, sulfur dioxide, and base. |
| Acid Value | Acid-Base Titration with NaOH | Neutralization of free carboxylic acid groups by standardized sodium hydroxide solution using phenolphthalein or potentiometric endpoint detection. |
| Residue on Ignition | Gravimetric Analysis | Measurement of non-volatile inorganic residue after controlled high-temperature ashing of a weighed sample in a muffle furnace. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of metal content via absorption of characteristic atomic spectral lines by ground-state atoms in a flame or graphite furnace. |
| Chloride Impurity | Ion Chromatography (IC) | Separation and quantification of chloride ions using an anion-exchange column with suppressed conductivity detection. |
| Color (APHA) | Visual Comparison or Spectrophotometry | Measurement of yellowness intensity by comparing sample absorbance at 430 nm to APHA color scale standards. |
| Density | Digital Density Meter | Determination of mass per unit volume using oscillating U-tube principle with temperature-controlled measurement. |
| Refractive Index | Refractometry | Measurement of light bending angle at air-sample interface using calibrated prism-based instrument at specified temperature. |
| Non-Volatile Residue | Gravimetric Evaporation | Weighing of residue remaining after gentle evaporation of a fixed sample volume under controlled nitrogen flow and vacuum. |
| Aldehyde Impurities | GC-MS | Separation by gas chromatography followed by identification and quantification using electron ionization mass spectrometry. |
| Peroxide Value | Iodometric Titration | Oxidation of potassium iodide by peroxides to liberate iodine, titrated with standardized sodium thiosulfate using starch indicator. |
Technical Specifications of Hydroxy-PEG-5-t-butyl ester
| Test Item | Specification |
|---|---|
| Appearance | Colorless liquid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.410–1.420 |
| Relative Density (20°C/25°C) | 0.92–0.94 g/cm³ |
| Odor | Characteristic ester-like 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 Hydroxy-PEG-5-t-butyl ester
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of Hydroxy-PEG-5-t-butyl ester
Packaging of Hydroxy-PEG-5-t-butyl ester
Industrial Hydroxy-PEG-5-t-butyl ester 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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