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Views: 0 Author: Site Editor Publish Time: 2026-09-12 Origin: Site
Formulating high-performance cleaning agents and agricultural sprays demands precise chemical control. CAS 61827-42-7 (commonly recognized as ethoxylated isodecyl alcohol or Poly(oxy-1,2-ethanediyl), alpha-isodecyl-omega-hydroxy-) emerges as a highly effective nonionic surfactant for these demanding tasks. We see formulators and procurement teams relying heavily on this compound across various industries. It delivers exceptional wetting, dispersing, and emulsifying capabilities.
Selecting the correct chemical ingredients determines product success or failure in competitive markets. Finding the exact ethoxylation grade directly impacts formulation stability, performance, and environmental compliance. You need reliable performance across complex industrial applications, from hard water environments to extreme pH conditions.
We will explore the technical nuances of this versatile compound throughout this article. You will learn how to accurately evaluate its physical properties. We will also help you assess application suitability and verify supplier reliability. This guide provides technical buyers and R&D professionals with a clear, actionable evaluation framework.
Clear chemical nomenclature prevents inventory mix-ups. CAS 61827-42-7 goes by several industry synonyms. You will often see it listed as ethoxylated isodecyl alcohol. Regulatory databases frequently classify it as Poly(oxy-1,2-ethanediyl), alpha-isodecyl-omega-hydroxy-. Using these exact synonyms ensures seamless regulatory matching. You can cross-reference these names on global chemical inventories to maintain strict compliance.
The physical state of this compound changes based on its molecular weight. You will observe different appearances as the degree of ethoxylation increases. Lower ethoxylation grades appear as clear liquids. Higher grades solidify into opaque pastes or waxes. This physical transition directly influences how you handle and heat the material before mixing.
Solubility profiles also shift alongside molecular weight. Low-mole variants dissolve easily in organic solvents. They form water-in-oil emulsions. High-mole variants become highly water-soluble. They excel in aqueous systems. You must match the solubility profile to your specific base solvent. The compound remains exceptionally stable across diverse pH ranges. It resists hydrolysis in both strongly acidic and highly alkaline formulations.
Table Title: Expected Physical State by Ethylene Oxide (EO) Content
| EO Moles (Approximate) | Appearance at 25°C | Water Solubility | Primary Emulsion Type |
|---|---|---|---|
| 3 to 5 EO | Clear Liquid | Insoluble / Dispersible | Water-in-Oil (W/O) |
| 6 to 8 EO | Cloudy to Clear Liquid | Soluble | Oil-in-Water (O/W) |
| 9 to 12 EO | Soft Paste / Solid | Highly Soluble | Oil-in-Water (O/W) |
This nonionic surfactant excels at reducing surface tension. The branched isodecyl structure prevents the molecules from packing too tightly at interfaces. This structural quirk produces rapid wetting dynamics. Liquid spreads instantly across challenging surfaces. We see it outperform many traditional linear alcohol ethoxylates in standard Draves wetting tests. It lowers the contact angle faster. This rapid action proves crucial for high-speed industrial processing.
Formulators face a persistent problem in I&I cleaning. They need efficient grease and soil removal. However, they must avoid excessive foam generation. High foam causes pumps to cavitate in automated scrubbers. It also requires time-consuming rinse cycles.
This compound acts as a powerful degreaser and rapid wetting agent. It penetrates baked-on soils quickly. It lifts particulate matter away from hard surfaces. The controlled foaming profile allows automated cleaning equipment to function flawlessly. It leaves surfaces completely residue-free. Facility managers appreciate the reduced rinsing time and lower water consumption.
Textile manufacturing introduces a different challenge. Raw fibers contain natural waxes and sizing oils. Manufacturers must remove these impurities through uniform treatment and scouring. Harsher chemicals often degrade delicate natural fibers during this stage.
This specific ethoxylate provides excellent detergency during the scouring phase. It emulsifies spinning oils efficiently. It prepares the fabric for uniform dye uptake. The chemical does not damage the underlying fiber structure. You achieve vibrant, even colors during the subsequent dyeing phases. It rinses out cleanly, preventing any interference in later finishing steps.
Agricultural sprays require extreme precision. Active ingredients often fail to disperse evenly on target plant surfaces. Leaves have waxy cuticles. Water naturally beads up and rolls off these hydrophobic surfaces, wasting expensive chemical treatments.
When used as an adjuvant, this surfactant changes the fluid dynamics. It reduces the spray droplet's surface tension. The liquid spreads flat across the leaf. This improves the overall coverage area. It also helps the active ingredient penetrate the plant cuticle. Farmers see significantly higher efficacy from their crop protection products. It remains completely stable when mixed with complex, multi-component agrochemical tank mixes.
Hydrophilic-Lipophilic Balance (HLB) dictates emulsion behavior. You must specify the correct degree of ethoxylation to achieve your desired HLB. A low HLB (typically 4 to 6) indicates a lipophilic character. You use these grades when formulating water-in-oil (W/O) systems. They work well for heavy degreasers and agricultural oils.
A higher HLB (typically 8 to 15) indicates a hydrophilic character. You select these for oil-in-water (O/W) emulsions. They dominate aqueous cleaning products. Understanding your continuous phase helps you pinpoint the exact ethoxylation grade required. Getting this wrong leads to rapid phase separation and product failure.
Temperature stability matters immensely for high-heat industrial processes. Nonionic surfactants exhibit inverse solubility. They become less soluble in water as temperatures rise. The cloud point marks the exact temperature where the surfactant separates from the solution, turning the mixture cloudy.
You must test formulation compatibility carefully. Follow these steps to ensure thermal stability:
If your cleaning bath runs at 60°C, your surfactant must have a cloud point of at least 65°C. Operating above the cloud point drastically reduces cleaning efficiency and causes oily redeposition.
You must assess your need for low-foam versus high-foam variants based on the application method. High-pressure spray cleaning requires exceptionally low foam. Foam traps air and reduces the mechanical impact of the spray jet. Conversely, immersion baths and soak tanks often benefit from a moderate foam blanket. The foam helps trap odors and insulates the heated bath.
The branched structure of this compound generally produces less stable foam than linear equivalents. It breaks down faster. This makes it an excellent candidate for dynamic systems where rapid foam collapse is desirable. You should conduct standardized Ross-Miles foam tests to quantify these dynamics in your specific base formula.
Technical buyers must implement strict documentation protocols before requesting any samples. Do not accept materials without a comprehensive paper trail. You must request the Technical Data Sheet (TDS) first. The TDS confirms exact physical properties like HLB and cloud point. Next, review the updated Safety Data Sheet (SDS). It outlines hazard classifications and safe handling procedures.
Finally, demand batch-specific Certificates of Analysis (COA). The COA proves the manufacturer maintains tight quality control. It should list actual test results for moisture content, pH, and color (APHA). Skipping this step exposes your production line to dangerous batch-to-batch variations.
Modern formulators prioritize ecological impact. We closely review biodegradability claims. CAS 61827-42-7 generally offers a favorable environmental profile. Many grades meet ready biodegradability standards under OECD 301 guidelines. They break down quickly in wastewater treatment facilities.
Export-focused manufacturing requires a global regulatory perspective. You cannot ship finished products internationally if your raw materials lack inventory compliance. Check the Toxic Substances Control Act (TSCA) inventory for US markets. Ensure compliance with REACH regulations for the European Union. Suppliers must provide documentation proving they pre-registered or fully registered the substance. Overlooking these regulatory hurdles results in costly customs delays and product recalls.
Procurement teams must differentiate between custom synthesis providers and bulk distributors. Custom synthesis labs offer specialized degrees of ethoxylation. They tailor the HLB precisely to your unique formulation. This benefits highly specialized R&D projects. However, they usually charge premium prices and have longer lead times.
Bulk distributors warehouse standard grades. They provide immediate availability and volume pricing. They suit high-volume, standard manufacturing runs perfectly. Your procurement strategy should align with your specific production scale and technical flexibility.
Standard delivery formats dictate how you receive and handle the chemical. You must match the packaging to your facility's physical capabilities. Some plants lack the infrastructure to handle bulk liquids.
Chart Title: Delivery Formats and Facility Requirements
| Packaging Format | Standard Volume/Weight | Facility Requirement |
|---|---|---|
| Steel/Plastic Drums | 200 kg | Basic forklift access, drum heaters (for pastes). |
| IBC Totes | 1,000 kg | Heavy-duty forklifts, dedicated pumping stations. |
| ISO Tanks | 20,000+ kg | Bulk storage tanks, specialized offloading bays. |
Shortlisting suppliers requires rigorous vetting. Do not decide based on price alone. You must evaluate their minimum order quantities (MOQ). Ensure their MOQ aligns with your inventory turnover rate. You don't want capital tied up in excess raw materials.
Track their historical lead-time accuracy. Late deliveries shut down your production lines. Ask potential vendors about their supply chain redundancy. Reliable suppliers maintain backup manufacturing sites or hold strategic safety stock. They protect you from unexpected global supply chain disruptions.
Integrating CAS 61827-42-7 successfully requires a methodical approach. You must match the specific ethoxylation grade directly to your formulation's required HLB. Understanding your continuous phase and operating temperatures prevents costly instability issues later.
We recommend establishing strict quality control parameters before purchasing bulk volumes. Ensure your chosen grade meets local environmental and regulatory compliance standards. This compound offers immense formulation flexibility when specified correctly.
Your clear next step involves engaging with a qualified supplier. Request a technical sample alongside the complete TDS and SDS. Conduct bench-testing immediately to validate the cloud point and foaming dynamics within your specific application environment.
A: The HLB range varies entirely based on the degree of ethoxylation. Low ethoxylation grades provide an HLB between 4 and 8. Higher ethoxylation grades push the HLB up to 15 or more. You specify the exact HLB needed when ordering.
A: It acts as an excellent drop-in replacement for NPEs. NPEs face severe regulatory restrictions globally due to endocrine disruption concerns. This compound offers similar wetting and detergency profiles but features a much safer, readily biodegradable environmental profile.
A: Most grades maintain a stable shelf life of 12 to 24 months. You should store them in their original, sealed containers. Keep them in a dry, well-ventilated area. Avoid direct sunlight and extreme temperatures to prevent chemical degradation.
A: Yes. Suppliers offer industrial grades for standard cleaning products. They also offer high-purity variants with minimal unreacted alcohols or polyethylene glycols (PEGs). You request these higher-purity grades for sensitive agricultural or cosmetic formulations.
