China Factory Direct
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| CAS number | 2916-31-6 |
| Product name | 2,2-DIMETHYL-1,3-DIOXOLANE |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Material GradeSpecialty GradeIndustrial 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) |
Based on current marketvolatility and material availability.
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
| Industry | Application | Process |
|---|---|---|
| Fine Fragrances & Flavorings | Used as a fragrance fixative and precursor for controlled release of 1,3-propanediol and aldehyde aroma compounds | Hydrolyzed under acidic conditions to gradually release 1,3-propanediol and corresponding carbonyl compounds (e.g., formaldehyde or acetaldehyde), enhancing fragrance longevity |
| Organic Synthesis | Employed as a protected form of 1,3-propanediol and as a hydroxyl protecting group | Undergoes reversible hydrolysis under mild acidic conditions (e.g., p-TsOH in CH₂Cl₂) for selective deprotection; also serves as a stabilized intermediate in cycloaddition and condensation reactions |
| Polymer Materials | Utilized as a comonomer or modification additive to improve flexibility and low-temperature performance of polyurethanes and polyesters | Incorporated into the main chain via melt condensation polymerization with dicarboxylic acids and diols, introducing flexible cyclic structural units |
| 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 non-polar capillary column. |
| Water Content | Karl Fischer Titration (Coulometric) | Electrochemical titration where iodine generated in situ reacts stoichiometrically with water; endpoint detected amperometrically. |
| Acidity (as Acetic Acid) | Acid-Base Titration with NaOH | Neutralization of acidic impurities using standardized sodium hydroxide solution and phenolphthalein indicator. |
| Color (APHA) | Visual Comparison or Spectrophotometric Measurement at 455 nm | Comparison of sample color intensity against platinum-cobalt standards or measurement of absorbance at 455 nm in a 10 cm cell. |
| Density at 20 C | Digital Density Meter (Oscillating U-tube) | Measurement of sample density based on resonant frequency shift of a vibrating U-shaped tube filled with the liquid. |
| Refractive Index at 20 C | Refractometry (Abbe type) | Determination of refractive index by measuring the critical angle of total internal reflection at the prism-sample interface. |
| Residue on Evaporation | Gravimetric Analysis (Weight Loss on Drying) | Evaporation of a known mass of sample under controlled temperature and vacuum, followed by weighing of non-volatile residue. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) after wet digestion | Quantification of total heavy metals after acid digestion by measuring absorbance of ground-state atoms in flame or graphite furnace. |
| Chloride Content | Ion Chromatography (IC) with Conductivity Detection | Separation of chloride anions on an anion-exchange column and detection via changes in electrical conductivity. |
| Non-Volatile Residue | Gravimetric Analysis (Hot Plate Evaporation) | Evaporation of sample on a pre-weighed dish at 105 C until constant weight, followed by mass difference calculation. |
| Distillation Range | Simple Distillation with ASTM D86 Apparatus | Measurement of initial boiling point, 10/50/90% distilled temperatures, and dry point using standardized distillation equipment. |
| Odor | Sensory Evaluation (Trained Panel) | Qualitative assessment by trained personnel to detect off-odor or decomposition-related odors inconsistent with specification. |
| Test Item | Specification |
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| Appearance | Clear colorless liquid |
| Purity | >=98.0% (GC) |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Refractive Index (n20/D) | 1.410–1.415 |
| Relative Density (20°C/25°C) | 0.905–0.915 g/cm³ |
| Odor | Characteristic odor |
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| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
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.