High-Quality Sodium Cocoyl Isethionate 85% Powder

Premium SCI 85% Mild Anionic Surfactant for Advanced Personal Care Formulations | CAS: 61789-32-0

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Technical Whitepaper

Deep Scientific Exploration of Sodium Cocoyl Isethionate (SCI 85%)

Sodium Cocoyl Isethionate (CAS NO.: 61789-32-0), commonly recognized as "Baby Foam", represents the pinnacle of mild anionic surfactants. Functioning as a high-performance active ingredient, SCI 85% is synthesized through the direct esterification of fatty acids derived from natural coconut oil with sodium isethionate. The resulting product is characterized by its exceptionally low skin irritation profile, dense and creamy lather stability, and excellent tolerance to hard water conditions.

Unlike traditional sulfate-based surfactants (such as SLES or SLS), SCI does not strip the epidermal lipids or disrupt the skin barrier. Its unique molecular structure allows it to form stable mixed micelles with other amphoteric and non-ionic surfactants, thereby reducing the critical micelle concentration (CMC) of the overall system and maximizing formulation mildness. As global regulations tighten around 1,4-Dioxane residues and sulfate-free claims, SCI 85% stands out as a critical raw material for clean beauty innovations.

Technical Specification (Standard Value)
Chemical Name Sodium Cocoyl Isethionate
CAS Registry Number 61789-32-0
Active Matter (SCI Content) ≥ 85.0%
Free Fatty Acids ≤ 10.0% - 14.0%
pH Value (10% aq. sol.) 5.0 - 7.0
Moisture Content ≤ 1.5%
Color (APHA) ≤ 50
Appearance Fine White Powder / Micro-Granules

Technical Roadmap & Future Outlook

Exploring the synthesis pathways, technological advancements, and green chemistry initiatives shaping the future of SCI production.

01

Catalytic Esterification Optimization

Traditional SCI manufacturing involves high-temperature direct condensation. Future roadmaps focus on using heterogeneous non-toxic catalysts to decrease reaction temperatures, reduce energy footprints, and prevent thermal degradation, leading to whiter, low-odor powder yields.

02

Carbon-Neutral Feedstocks

Shifting from standard palm-based chains to RSPO-certified mass-balance (MB) coconut derivatives. This transition significantly lowers the product's PCF (Product Carbon Footprint) and guarantees deforestation-free raw material procurement for global markets.

03

Particle Morphology Engineering

Innovations in spray-drying and fluid bed granulation allow control over particle size distribution. Engineering powder to achieve minimal dusting, rapid dissolution rates, and optimal flowability helps address processing challenges in automated manufacturing plants.

Macro Industry Solutions

Formulating for tomorrow: How SCI 85% addresses the market shift towards waterless, solid, and gentle personal care systems.

Syndet Bars & Solid Cleaners

The rise of plastic-free packaging has boosted global demand for shampoo bars, body bars, and facial syndets. SCI 85% serves as the primary solid surfactant matrix. Its structural integrity under pressure molding ensures high mechanical strength in bars, while the free fatty acid fraction acts as an internal plasticizer, preventing cracking during dry-down cycles.

Ultra-Mild Infant Care & Sensitive Skin Care

For sensitive skin, standard formulations can irritate the stratum corneum. Thanks to its low binding affinity to skin proteins, SCI 85% gently cleanses without causing swelling of the keratin structure. This makes it an ideal base surfactant for baby care washes, hypoallergenic facial cleansers, and dermatologist-recommended skin regimens.

Sulfate-Free Shampoos & Scalp Care Therapy

As consumers understand the impact of harsh surfactants on color-treated hair, the demand for sulfate-free alternatives continues to grow. SCI 85% provides a rich, flash foam profile that is usually hard to achieve in sulfate-free formulations. It cleanses the scalp gently without stripping sebum, helping to reduce scalp irritation and dryness.

China Factory 4.0 Production Line
Supply Chain Excellence

China Factory 4.0: Supply Chain Resilience & Cost-Efficiency

Suzhou Yuantairun Chemical Co., Ltd. utilizes an advanced manufacturing model to balance cost efficiency and high quality. Through our continuous synthesis pipelines, real-time quality control monitors variables like temperature, acid value, and esterification rate.

Operating within close proximity to major ports (such as Shanghai), our facilities optimize logistical costs and reduce transit times. By integrating upstream raw material sourcing of premium coconut fatty acids and optimizing our packaging lines, we help protect clients from price fluctuations and supply disruptions in the global market.

2010
Founded In
7000+
Cooperative Partners
100%
Quality Traced

Global Localization & Compliance Safeguards

Ensuring your raw material sourcing aligns with global chemical registries and local compliance standards.

Regulatory Compliant (REACH, TSCA)

Our SCI 85% is registered and compliant with major chemical regulations globally. We provide complete dossiers including EU REACH, US TSCA, China IECIC, and Japanese ENCS, facilitating smooth custom clearances.

Sustainable Certifications

Aligned with green consumerism, we offer RSPO Mass Balance certified grades, Halal, Kosher, and ECOCERT raw material compliance statements. We support green beauty brands in meeting their sustainability goals.

Technical & Warehousing Support

Through our technical centers, we provide formulation advice, compatibility trials, and viscosity-building studies. Our local warehousing networks help manage inventory risks and ensure just-in-time delivery.

Meeting Global Procurement Requirements

Tailored logistical solutions, flexible packaging options, and robust quality management protocols for multi-national manufacturers.

For international raw material sourcing managers, finding a balance between reliable quality, prompt delivery, and competitive pricing is crucial. At Suzhou Yuantairun Chemical, we provide tailored services designed to meet these exact needs:

  • Flexible Packaging: Standard 25kg moisture-proof paper bags, or 500kg/1000kg bulk super sacks, designed to prevent clumping during transport.
  • Batch Consistency: Every batch is tested using high-performance liquid chromatography (HPLC) to verify active matter content remains above 85.0%.
  • Comprehensive Documentation: We provide full COAs, MSDS/SDS, allergen statements, GMO-free certificates, and heavy metal limit reports.
  • OEM/ODM Solutions: Offering customized particle sizes, ranging from fine powder to dust-free granular forms, tailored to match your specific production line equipment.

Ready to Source SCI 85%?

Contact our technical sales team for current pricing, certificate requests, and customized samples for laboratory testing.

Request Technical Sample

Key Industry Applications

Discover how our specialized chemical portfolio supports diverse product categories across the cosmetic and home care sectors.

Washing Powder / Detergents

Washing Powder

High-efficiency, eco-friendly systems using SLES, AOS, and CMEA to deliver strong cleaning performance and dense foam profiles.

Facial Cleanser Formulation

Facial Cleanser

Gentle, amino acid-based formulations with Sodium Cocoyl Glutamate and Sodium Lauroyl Sarcosinate, designed for sensitive skin.

Softener Manufacturing

Fabric Softener

Concentrated cationic formulations featuring Cetrimonium Chloride for improved anti-static properties and fabric softness.

Shower Gel production

Shower Gel

High-foaming, skin-friendly shower gels utilizing Lauryl Glucoside and Cocamidopropyl Betaine for a gentle cleansing experience.

Frequently Asked Questions (FAQ)

Technical clarifications, usage guidance, and formulation advice from our chemical laboratory engineers.

Q1: How does SCI 85% Powder compare to SCI needle or granule forms during manufacturing?
SCI 85% Powder features a smaller, uniform particle size distribution. This increased surface area allows for significantly faster dissolution rates, especially in hot-process systems. However, appropriate dust control systems must be managed during manufacturing. Needle forms, by contrast, offer low-dust handling but require longer heating cycles to dissolve fully in formulation bases.
Q2: What is the primary role of the 10-14% free fatty acids present in SCI 85%?
Free fatty acids (predominantly stearic and coconut acids) are deliberate components that help structure solid cleansing systems. In solid syndet bar formulations, they serve as structuring agents, providing plasticizing qualities that prevent the bar from becoming too brittle or cracking. Additionally, they contribute to a smooth skin-feel and lather richness during use.
Q3: Can SCI 85% be formulated into cold-process, clear liquid body washes?
SCI has limited water solubility at room temperature (approximately 0.1% to 0.2% at 25°C). To formulate clear liquid washes, it is typically co-solubilized using secondary surfactants like CAPB (Cocamidopropyl Betaine) or Alkyl Polyglycosides (APGs) under moderate heating (around 70°C-80°C). This allows the creation of stable, clear mixed micelle structures that remain clear when cooled.
Q4: What are the recommended storage conditions to prevent clumping of SCI 85% Powder?
Due to its high concentration and fine powder state, SCI 85% is hygroscopic and sensitive to moisture and heat. It should be stored in its original, sealed, moisture-proof packaging in a cool, well-ventilated warehouse (ideally below 35°C). Avoid stacking pallets too high, as pressure consolidation can lead to physical clumping.
Q5: Is SCI 85% biodegradable and compliant with clean beauty initiatives?
Yes, SCI is readily biodegradable under OECD guidelines. Its natural fatty acid chain is derived from coconut oil, making it highly renewable. Since the manufacturing pathway avoids traditional alkoxylation, SCI is free from 1,4-Dioxane, meeting the requirements of major global clean beauty standards.

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