China Factory Direct
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| CAS number | 67762-38-3 |
| Product name | Fatty acids, C16-18 and C18-unsatd., Me esters |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial GradeMaterial GradeSpecialty 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 |
|---|---|---|
| Chemical Industry | Biodiesel production | Reacted with methanol via transesterification |
| Cosmetics Industry | Used as a surfactant or emulsifier | Incorporated into formulations by blending with other components |
| Lubricants Industry | Used as a lubricant additive | Added to lubricants via physical mixing |
| Plastics Industry | Used as a plasticizer | Added during plastic processing |
| Food Industry | Used as a food-grade surfactant | Applied in emulsification and dispersion processes during food manufacturing |
| Detection Item | Common Analytical Method | Method Overview |
|---|---|---|
| Acid Value | Acid-Base Titration | Measures free fatty acids by titration with standardized KOH solution in alcoholic medium. |
| Iodine Value | Wijs Method | Quantifies unsaturation via addition of iodine monochloride to double bonds, followed by titration of unreacted iodine. |
| Saponification Value | Acid-Base Titration | Determines total ester content by alkaline hydrolysis and back-titration of excess KOH. |
| Ester Content | Gas Chromatography (GC) | Separates and quantifies methyl esters using a polar capillary column and flame ionization detection. |
| Free Glycerol | Gas Chromatography (GC) | Direct quantification of unreacted glycerol after derivatization or using specialized GC columns. |
| Moisture Content | Karl Fischer Titration | Electrochemical titration measuring water content based on iodine generation proportional to water. |
| Density | Pycnometry | Determines mass per unit volume at specified temperature using calibrated glass pycnometers. |
| Viscosity | Capillary Viscometry | Measures kinematic viscosity by timing flow of sample through a calibrated capillary tube under gravity. |
| Flash Point | Pensky-Martens Closed Cup | Determines lowest temperature at which vapors ignite in presence of flame under standardized closed-cup conditions. |
| Color | ASTM D1500 | Compares sample color visually or instrumentally against standardized iodine scale in 100-mm cells. |
| Sulfated Ash | Gravimetric Analysis | Measures inorganic residue after high-temperature combustion and subsequent weighing of ash. |
| Metals (Na, K, Ca, Mg) | ICP-OES | Quantifies trace metal concentrations by plasma excitation and emission spectral intensity measurement. |
| Test Item | Specification |
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| Appearance | Colorless to pale yellow liquid |
| Purity | >=98.5% |
| Water Content (KF) | <=0.5% |
| Acid Value (mg KOH/g) | <=0.5 mg KOH/g |
| Refractive Index (n20/D) | 1.440–1.450 |
| Relative Density (20°C/25°C) | 0.870–0.890 g/cm³ |
| Color (APHA/Pt-Co) | <=100 |
| Odor | Characteristic fatty 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.