DL-Lactide Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 95-96-5 |
| Product name | DL-Lactide |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/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 DL-Lactide
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk DL-Lactide Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of DL-Lactide
| Industry | Application | Process |
|---|---|---|
| Biodegradable Materials | Monomer for synthesizing polylactic acid (PLA) | Applied in ring-opening polymerization (ROP) |
| Medical Devices | Production of biodegradable medical polymers, such as absorbable sutures and bone fixation materials | Processed into final forms after melt or solution polymerization |
| Packaging Materials | Manufacturing eco-friendly packaging products, including food packaging films and disposable tableware | Formed into final products via film blowing, injection molding, or other shaping processes after PLA polymerization |
| Textiles | Production of bio-based, biodegradable fibers | Melt spinning following polymerization |
| Agriculture | Preparation of controlled-release pesticide carriers and biodegradable mulch films | Converted into microspheres or films after PLA polymerization |
| 3D Printing | Raw material for biodegradable printing consumables (e.g., PLA filaments) | Extruded into pellets after polymerization, then melted and extruded into filament |
Manufacturing Quality Control of DL-Lactide
| Test Item | Common Testing Methods | Method Overview |
|---|---|---|
| Purity | High-Performance Liquid Chromatography (HPLC) | Utilizes a reversed-phase column (e.g., C18) with a UV detector (~210 nm); qualitative analysis is performed based on retention time, and quantitative analysis is carried out via peak area to determine the content of lactide main component and impurity levels. |
| Content Determination | Gas Chromatography (GC) or HPLC | GC is commonly used for samples with good volatility, employing an FID detector; HPLC is more suitable for thermally unstable samples. Both methods enable accurate quantification. |
| Water Content | Karl Fischer Titration | Available in volumetric and coulometric forms; precisely measures trace water content in lactide, which is critical for controlling polymerization reactions sensitive to moisture. |
| Optical Purity (D/L Isomer Ratio) | Chiral High-Performance Liquid Chromatography (Chiral HPLC) | Uses a chiral chromatographic column to separate L-lactide, D-lactide, and meso-lactide, evaluating stereoselectivity and optical purity. |
| Residual Solvents | Gas Chromatography (GC) | According to ICH guidelines, detects possible residual organic solvents (e.g., toluene, ethyl acetate, dichloromethane) in lactide using headspace sampling coupled with FID detection. |
| Acid Value (Free Acid) | Acid-Base Titration | Dissolves lactide in a neutral solvent (e.g., ethanol/toluene mixture) and titrates with standardized sodium hydroxide solution to calculate free acid content, primarily from lactic acid. |
| Color | Visual Color Comparison or Spectrophotometry | Assesses product color by comparison with standard color solutions or by measuring absorbance at specific wavelengths (e.g., 400–500 nm), reflecting impurity or degradation levels. |
| Melting Point | Melting Point Apparatus (Capillary Method) | Determines the melting temperature range of lactide to assess crystallinity and purity; high-purity lactide typically melts between 95–125°C (depending on isomer composition). |
| Heavy Metal Residues | Atomic Absorption Spectroscopy (AAS) or ICP-MS | Detects harmful elemental residues such as lead, cadmium, mercury, and arsenic to ensure compliance with safety standards for pharmaceutical or food-grade raw materials. |
| Microbial Limits | Microbial Limit Test | For medical-grade polylactic acid (PLA) production, requires testing for total aerobic microbial count, mold and yeast count, and specified control organisms (e.g., Escherichia coli). |
Technical Specifications of DL-Lactide
| Test Item | Specification |
|---|---|
| Appearance | White crystalline solid |
| Purity | >=98.0% (GC-MS) |
| Water Content (KF) | <=0.5% |
| Melting Point | 124–128°C |
| Optical Rotation | +39° to +43° (c=1, in chloroform) |
| Total Impurities | <=2.0% |
| Single Impurity | <=0.5% |
| Identification (NMR) | Conforms to reference spectrum |
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 DL-Lactide
| CAS/Product ID | *Required fields | |
| Lot/Batch Number | *Required fields | |
NMR Spectra of DL-Lactide
Packaging of DL-Lactide
Industrial DL-Lactide 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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