Sodium stearate Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 822-16-2 |
| Product name | Sodium stearate |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Industrial 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 Sodium stearate
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Sodium stearate Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Sodium stearate
| Industry | Application | Process |
|---|---|---|
| Personal care | Emulsifier and thickener in soaps and detergents | Serves as the primary soap base component, reacting with oils and fats via saponification to deliver cleaning performance and foam stability |
| Plastics | Heat stabilizer and lubricant for polyvinyl chloride (PVC) | Added during processing to absorb HCl and prevent degradation, while enhancing resin melt flow and mold release |
| Cosmetics | Emulsifier and viscosity modifier in creams, lotions, and foundations | Blended with other ingredients to form stable emulsions through surface activity and adjust product texture |
| Food | Coating agent, emulsifier, and binder (e.g., for fruit coatings or food additives) | Applied by spraying or incorporation after dissolution to form protective films or improve food texture and processability |
| Pharmaceuticals | Lubricant and binder in tablets; emulsifier in ointments | Mixed with active pharmaceutical ingredients prior to tableting to improve powder flow, or incorporated into topical formulations to facilitate oil–water phase mixing |
| Rubber | Mold release agent and dispersing aid in natural and synthetic rubber processing | Added before compounding or vulcanization to reduce roll adhesion and promote uniform filler dispersion in the rubber matrix |
| Textiles | Component in fabric water-repellent and softening finishes | Applied to fabrics via padding or spraying to impart hydrophobicity and improve hand feel |
| Papermaking | Sizing agent to enhance water resistance and strength | Added to the pulp or applied as a surface size to reduce liquid penetration through its hydrophobic properties |
| Construction | Waterproofing agent and foaming agent in cement-based materials (e.g., lightweight concrete) | Incorporated during mixing to generate stable air voids or reduce water absorption, thereby improving material performance |
| Metalworking | Component in metal lubricants and polishing agents for wire drawing and rolling | Formulated as solutions or pastes and applied by coating or immersion to form a lubricating film on metal surfaces |
Manufacturing Quality Control of Sodium stearate
| Test Item | Common Test Method | Method Summary |
|---|---|---|
| Appearance | Visual Inspection | Place an appropriate amount of sample on a white background and observe its color, physical state, and presence of impurities. The product should be white powder or flakes, free from visible foreign matter. |
| Melting Point | Capillary Melting Point Method | Fill the sample into a capillary tube and gradually heat using a melting point apparatus; record the temperature range at which the sample completely melts. The melting point of sodium stearate typically ranges between 200–220°C. |
| pH Value | pH Meter Method | Stir to dissolve a 1% aqueous solution of the sample, then measure its pH using a calibrated pH meter. The normal range is usually 7.5–10.5. |
| Assay (Main Component) | Non-aqueous Titration (Perchloric Acid Titration) | Titrate sodium stearate in a non-aqueous medium (e.g., glacial acetic acid) with a standard perchloric acid solution. Calculate the active content based on the volume consumed. |
| Moisture (Loss on Drying) | Oven Drying Method / Karl Fischer Method | Oven method: dry the sample at a specified temperature until constant weight and calculate the percentage weight loss. Karl Fischer method is more accurate and suitable for trace moisture determination. |
| Heavy Metals | Sulfide Colorimetry / Atomic Absorption Spectroscopy (AAS) | After digestion of the sample, react with hydrogen sulfide under acidic conditions to produce color, or use AAS to determine heavy metal contents such as lead, arsenic, and mercury. |
| Chlorides | Silver Nitrate Turbidimetry | Add silver nitrate to the sample solution; a white precipitate forms. Use turbidimetry to measure chloride ion content and control inorganic salt impurities. |
| Sulfates | Barium Chloride Turbidimetry | Add barium chloride under acidic conditions to form barium sulfate precipitate; quantify sulfate ion content by turbidity measurement. |
| Carbonates | Acid Reaction Observation | Add dilute hydrochloric acid and observe whether excessive bubbling (CO₂) occurs, indicating the presence of impurities such as excess sodium carbonate. |
| Iodine Value (Degree of Unsaturation) | Iodometric Method | Measures the content of unsaturated fatty acid residues in the sample, reflecting raw material purity. Lower iodine value indicates higher saturation and greater product stability. |
| Acid Value | Acid-Base Titration | Saponify the sample and back-titrate free fatty acids with standard alkali solution to calculate the acid value, indicating the level of free acid content. |
Technical Specifications of Sodium stearate
| Test Item | Specification |
|---|---|
| Appearance | White powder |
| Purity | ≥99.0% |
| Free acid as stearic acid | ≤1.2% |
| Loss on drying | ≤5.0% |
| Fitness(pass 0.075mm-mesh) | ≥99.0% |
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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Packaging of Sodium stearate
Industrial Sodium stearate 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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