TERMUL 200

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Product Details

CasNo： 68439-46-3

MF： C13H28O2

Appearance： liquid

Delivery Time： 15 days

Packing： 200kg/drum

Purity： 99%

1. Basic Attributes

Product Type: Nonionic fatty alcohol polyoxyethylene ether emulsifying dispersant. Its core component is a polymer of C₁₂-C₁₄ linear fatty alcohol and ethylene oxide (EO chain length presumed to be 20-22), with an HLB value of 14-15, suitable for oil-in-water (O/W) emulsification systems.
Key Certifications: Contains no NP (nonylphenol) or APE (alkylphenol ethoxylate) residues. Complies with EU REACH Regulation and China’s GB/T 26396-2011 biodegradation standard, with biodegradability ≥90%.
Applicable Systems: Compatible with neutral to weakly alkaline (pH 6-10) aqueous systems, tolerant to low-concentration electrolytes (e.g., <5% sodium chloride solution), and not suitable for strongly acidic (pH < 4) environments.

2. Core Physicochemical Properties

Index Item	Presumed Standard Range	Description
Appearance (Room Temperature)	Light yellow transparent liquid	No stratification or sedimentation; may be slightly turbid at low temperatures (<5℃) and regain transparency when heated
Hydroxyl Value	50-60 mg KOH/g	Reflects the content of unreacted hydroxyl groups, positively correlated with hydrophilicity
Cloud Point (1% aqueous solution)	90-95℃	Characterizes hydrophilicity; higher cloud point indicates stronger hydrophilicity
Surface Tension (0.1% aqueous solution)	30-35 mN/m	Excellent wetting ability, can quickly reduce the surface tension of solid particles
Solubility	Soluble in water, ethanol, propylene glycol	Insoluble in mineral oil, dispersible in vegetable oil

3. Functions and Typical Application Scenarios

Core Functions:
1. Efficient Emulsification: Forms stable O/W emulsions through the combination of fatty alcohol hydrophobic ends with oil phases and polyoxyethylene chain hydrophilic ends with water phases. The emulsion particle size can be controlled within 1-3 μm, with no stratification after 72 hours of standing.
2. Strong Wetting and Penetration: Reduces liquid-solid interfacial tension, promoting the rapid penetration of liquid pesticides or cleaning solutions into target surfaces (e.g., crop leaves, oil-stained gaps on metals).
3. Dispersion and Solubilization: Exhibits solubilizing effects on poorly soluble substances (e.g., pesticide technical materials, industrial dyes), improving their solubility and stability in aqueous phases.
Typical Application Fields:
- Agrochemical Industry: Used in emulsifiable concentrates (EC) and emulsions (EW) formulations, such as 25% Lambda-cyhalothrin EC. The recommended addition amount is 5%-7%, which can limit the particle size growth of the emulsion to ≤10% after thermal storage.
- Industrial Cleaning: Serves as a core additive in metal surface degreasers and heavy oil cleaners. With an addition amount of 2%-4%, it can increase oil-stripping efficiency by over 30%.
- Textile Auxiliaries: Used as a penetrant and scouring agent in textile pretreatment. With an addition amount of 1%-3%, it enhances the absorption efficiency of fabrics to treatment liquids.

4. Usage Specifications and Precautions

Recommended Addition Amount: 5%-7% in the pesticide field, 2%-4% in the industrial cleaning field, and 1%-3% in the textile field. Small-scale tests (e.g., emulsion stability test) are recommended to verify the optimal ratio.
Compatibility: Can be compounded with most nonionic and anionic surfactants. Avoid long-term contact with strongly acidic substances (pH < 4) to prevent ether bond hydrolysis.
Storage Requirements: Seal and store in a cool, ventilated place (5-30℃), avoiding direct sunlight and high temperatures. The unopened shelf life is 24 months; after opening, use it within 6 months.
Safety: Acute oral toxicity LD50 (rat) > 5,000 mg/kg, classified as low-toxic. Gloves are recommended during operation to avoid prolonged skin contact.