China Factory Direct
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| CAS number | 598-82-3 |
| Product name | DL-Lactic acid |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Agricultural GradePharmaceutical GradeMaterial GradeSpecialty GradeIndustrial GradeFood GradeCosmetic 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) |
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 |
|---|---|---|
| Food Industry | Acidulant, preservative | Added to beverages, confectionery, and dairy products to adjust pH and extend shelf life |
| Food Industry | Fermentation regulator | Used in fermented foods such as bread and yogurt to control microbial growth and flavor development |
| Cosmetics | Humectant, exfoliating agent | Incorporated into creams, masks, and cleansing products to improve skin texture |
| Pharmaceuticals | Pharmaceutical excipient, sustained-release carrier | Employed as a tablet filler or biodegradable matrix in controlled-release formulations |
| Biodegradable Materials | Raw material for polylactic acid (PLA) | Processed via condensation and ring-opening polymerization to produce biodegradable plastics for packaging, fibers, and 3D printing |
| Agriculture | Adjuvant for agrochemicals | Used as a stabilizer or penetration enhancer in herbicides and fungicides |
| Textile Industry | Dyeing and finishing auxiliary | Applied as a pH regulator and metal ion chelating agent during dyeing |
| Cleaning Products | Ingredient in eco-friendly cleaners | Formulated into household and industrial cleaning agents for effective scale removal with low environmental impact |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Assay (DL-Lactic Acid Content) | Acid-Base Titration with NaOH | Neutralization of lactic acid with standardized sodium hydroxide solution using phenolphthalein indicator. |
| Optical Rotation | Polarimetry | Measurement of rotation of plane-polarized light caused by chiral DL-lactic acid in solution. |
| Specific Gravity | Digital Density Meter | Determination of density relative to water at specified temperature using oscillating U-tube principle. |
| pH (10% aqueous solution) | pH Meter | Electrochemical measurement of hydrogen ion activity in a 10% w/w aqueous solution. |
| Color (APHA) | Visual Comparison or Spectrophotometer | Comparison of sample color against platinum-cobalt standard solutions or absorbance at 430 nm. |
| Chloride | Ion Chromatography (IC) | Separation and quantification of chloride anions using anion-exchange column and conductivity detection. |
| Sulfate | Barium Sulfate Gravimetric Method | Precipitation of sulfate as BaSO4 followed by drying and weighing of the precipitate. |
| Heavy Metals (as Pb) | Atomic Absorption Spectroscopy (AAS) | Quantification of total heavy metals after wet digestion, using lead as the reference metal. |
| Residue on Ignition | Gravimetric Analysis | Weighing of non-volatile residue remaining after high-temperature incineration. |
| Water Content | Karl Fischer Titration | Coulometric or volumetric titration based on iodine reaction with water in pyridine-methanol solvent. |
| Iron (Fe) | Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) | Atomization and excitation of iron in plasma, followed by emission intensity measurement. |
| Appearance | Visual Inspection | Assessment of clarity and absence of visible particles or turbidity in undiluted sample. |
| Test Item | Specification |
|---|---|
| Appearance | Clear, colorless to pale yellow liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Total Impurities | <=1.5% |
| Single Impurity | <=0.5% |
| Acid Value (mg KOH/g) | 45.0 - 47.0 mg KOH/g |
| Relative Density (20°C/25°C) | 1.206 - 1.212 g/cm³ |
| Optical Rotation | -0.5° to +0.5° (c=10, H2O) |
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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.