Name: Pure Stearic Acid
SKU: N/A

Pure Stearic Acid – High-Purity C18 Fatty Acid for Polymer, Cosmetic & Rubber Industries

EverStar Group delivers factory-direct Pure Stearic Acid with verified C18 content from 52% to 68% across four precision grades (1801, 1838, 1840, 1842), manufactured in our own advanced chemical facility with over 5,000 tons of on-site inventory. With 13 years of expertise in fatty acid production and EU REACH compliance, we solve critical challenges like batch inconsistency in thermoplastic extrusion, oxidation instability in cosmetic emulsions, and yellowing in candle manufacturing. Our product features a controlled acid value of 202–212 mg KOH/g, iodine value as low as ≤1.0 (grade 1801), and lot-level traceability to ensure uniform performance in demanding industrial environments.

Pure Stearic Acid China Factory EverStar

What Makes Our Stearic Acid Different?

You need reliability when sourcing fatty acids for high-stakes production. Our four-tier grading system lets you match purity to application precisely:

Grade 1801 (≥68% C18): Premium tier for pharmaceutical excipients, luxury cosmetics, and high-performance rubber vulcanization
Grade 1838 (≥60% C18): Balanced choice for specialty emulsifiers and precision molding compounds
Grade 1840 (≥55% C18): Mid-range solution for textile sizing and industrial lubricants
Grade 1842 (≥52% C18): Cost-optimized for PVC stabilization and general rubber processing

Every batch undergoes gas chromatography analysis in our in-house laboratory. We verify carbon chain distribution, measure color stability using the Lovibond method, and control moisture below 0.2% through strict dehydration protocols.

Technical Specifications You Can Trust

Parameter	Grade 1801	Grade 1838	Grade 1840	Grade 1842
C18 Content	≥68%	≥60%	≥55%	≥52%
Acid Value (mg KOH/g)	202–212	202–212	202–212	202–212
Saponification Value	203–213	203–213	203–213	203–213
Iodine Value (g I₂/100g)	≤1.0	≤2.0	≤3.5	≤5.0
Appearance	White waxy flakes / powder
CAS Number	57-11-4
Packaging	25 kg multi-wall kraft bag with PE liner

These values are guaranteed through rigorous quality control. Our low iodine values indicate exceptional saturation, preventing rancidity and discoloration during high-temperature processing.

Note: Product specifications may be adjusted during product iteration and optimization. Please submit your inquiry to us for the latest data and official COA documents.

Where You'll Get Maximum Performance?Polymer & PVC Processing

Use it as an internal and external lubricant to reduce die adhesion during extrusion. Your production line runs smoother because our consistent Pure Stearic Acid value ensures predictable flow behavior under high shear. It also acts as a heat stabilizer aid, extending equipment life and reducing downtime.

Cosmetic & Personal Care Formulations

Create stable emulsions in creams and lotions. The high C18 content provides the structural matrix your formulations need to maintain consistency across pH variations. You'll avoid phase separation issues common with lower-purity alternatives.

Rubber Compounding

Activate vulcanization reactions more efficiently. Our product enhances the dispersion of carbon black and zinc oxide, resulting in superior tensile strength and durability in tires and technical rubber goods. Your compounds achieve optimal cross-linking density with less variability.

Candle & Wax Manufacturing

Eliminate yellowing and improve mold release. The low iodine value guarantees oxidative stability, so your candles maintain their white appearance even after prolonged storage or burning.

Textile & Detergent Industries

Apply it as a leveling agent in dyeing or as a filler in detergent powders. You benefit from uniform performance and excellent cost-efficiency, especially with our Grade 1842 option.

Pure Stearic Acid Produce by China Supplier

Why Choose EverStar Group?

Fabricating Strength

We work our claim chemical generation office with mechanized lines and a 5,000-ton capacity tank cultivate. This implies you get quick arrange fulfillment and reliable batch-to-batch quality, whether you require a trial shipment or full holder loads.

R&D & Customization

Our in-house research facility underpins 24-hour custom definition advancement. If your application requires a particular corrosive esteem run or custom fitted carbon chain dispersion, we can create and test tests quickly.

Quality Assurance

Every generation run is followed with lot-level traceability. We perform thermogravimetric examination (TGA) to confirm warm soundness, Karl Fischer titration to control dampness, and Lovibond color testing to ensure tall whiteness.

Global Coordinations Excellence

With 99.5% on-time conveyance to over 50 nations, we handle universal coordinations proficiently. Adaptable MOQ choices let you begin with little clumps and scale as your prerequisites grow.

Professional Support

You work specifically with experienced chemical engineers who get it your industry challenges. From item determination to after-sales specialized help, we give full lifecycle back.

Quality Control That Protects Your Production

We understand that even trace impurities can disrupt your processes. That's why we implement a comprehensive quality framework:

Gas Chromatography (GC): Verifies fatty acid composition and ensures no short-chain contaminants
Iodine Value Testing: Confirms saturation level to prevent oxidation issues
Moisture Analysis: Guarantees <0.2% water content to avoid steam voids in plastics
Saponification Value: Detects unsaponifiable matter that could interfere with chemical reactions
Heavy Metal Screening: Ensures compliance with USP/NF, BP, and FDA/EFSA standards for food-contact applications

Your purchase comes with a Certificate of Analysis (CoA) for every batch, giving you full transparency and documentation for regulatory compliance.

Pure Stearic Acid Best Quality

FAQ

Q: How does your premium review vary from lower-grade stearic acid?

A: Our Review 1801 contains ≥68% C18, though lower grades blend C16 and C18. Higher immaculateness gives you a more honed softening point and way better auxiliary inflexibility in formulations.

Q: Why is the iodine esteem basic for my application?

A: A moo iodine esteem (≤1.0 in Review 1801) implies tall immersion. This avoids yellowing and rancidity when uncovered to warm or light amid capacity and processing.

Q: What capacity conditions avoid item clumping?

A: Store in a cool, dry, well-ventilated distribution center underneath 30°C. The waxy crystalline structure can sinter if uncovered to tall temperatures or humidity.

Q: Can I utilize this in food-contact bundling materials?

A: Yes, given it meets FCC (Nourishment Chemicals Codex) or significant FDA/EFSA benchmarks. We can give food-grade documentation upon ask for qualified batches.

Q: How does dampness influence expulsion quality?

A: Indeed 0.3% dampness can cause steam voids or silver streaks in expelled plastics. Our strict drying out handle keeps dampness underneath 0.2% to secure your generation quality.

Q: Do you offer customized formulations?

A: Completely. Our R&D group can alter corrosive esteem ranges, carbon chain dispersion, or create strength mixes inside 24 hours for interesting necessities.