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Driven by the dual goals of pesticide reduction and green agriculture, adjuvant selection is becoming a key variable in improving efficacy. IOTA 2000, a polyether-modified specialty agricultural silicone surfactant, is playing the role of an "efficiency amplifier" in herbicide, insecticide, fungicide, and foliar nutrient systems — thanks to its ultra-low surface tension of 21.5 mN/m, excellent spreading, and penetration properties.
Key Product Information
IOTA 2000 is chemically an ethoxylated modified trisiloxane (polyether-modified heptamethyltrisiloxane), with CAS No. 27306-78-1. Its molecular structure combines the low surface tension of a siloxane backbone with the water dispersibility of polyether segments, enabling it to significantly reduce spray solution surface tension, decrease the contact angle between droplets and leaf surfaces, and enhance wetting, adhesion, and spreading on plant or pest surfaces.
Key Physicochemical Data:
| Parameter | Value |
|---|---|
| Appearance | Colorless to light yellow transparent liquid |
| Specific gravity (25°C) | 1.020 |
| Viscosity (25°C, cst) | 20–40 |
| Refractive index (25°C) | 1.4430 |
| Cloud point (0.1% aqueous solution) | 40°C |
| Surface tension (25°C, mN/m) | 21.5 |
| Active content | 100% |
Solubility: Readily soluble in methanol, isopropanol, acetone, xylene, and dichloromethane; dispersible in water, forming a transparent to translucent solution.
Application Value
IOTA 2000 can be used as a spray modifier, foliar absorption adjuvant, and activator across herbicide, foliar nutrient, plant growth regulator, insecticide, and fungicide systems. Its core value lies in three aspects:
Does not decompose active ingredients – excellent compatibility with pesticide actives;
Reduces surface tension – significantly decreases the contact angle between droplets and leaf surfaces, improving spreading and adhesion;
Enhances efficacy – improves wetting, adhesion, and spreading on plant or pest surfaces, supporting reduced dosage with enhanced efficacy.
Frequently Asked Questions (FAQ)
Q1: What type of adjuvant is IOTA 2000?
A: IOTA 2000 is a polyether-modified specialty agricultural silicone surfactant, chemically an ethoxylated modified trisiloxane (polyether-modified heptamethyltrisiloxane), CAS No. 27306-78-1.
Q2: What is the surface tension of IOTA 2000?
A: 21.5 mN/m at 25°C — an ultra-low surface tension level that significantly reduces the contact angle between spray solution and leaf surfaces.
Q3: Which pesticide systems is IOTA 2000 suitable for?
A: It is suitable for herbicides, foliar nutrients, plant growth regulators, insecticides, and fungicides, functioning as a spray modifier, foliar absorption adjuvant, and activator.
Q4: Does IOTA 2000 affect the active ingredient?
A: IOTA 2000 does not decompose active ingredients and offers excellent compatibility with pesticide actives.
Q5: What is the water solubility of IOTA 2000?
A: It is dispersible in water, forming a transparent to translucent solution; it is also readily soluble in methanol, isopropanol, acetone, xylene, and dichloromethane.
About IOTA 2000
IOTA 2000 has a 100% active content and appears as a colorless to light yellow transparent liquid. It is suitable for pesticide formulations and spray systems requiring high spreading, penetration, and adhesion performance.
For samples, formulation recommendations, or technical support, please feel free to contact us.
