EMULSOL K-SIL 408 Spray Adjuvant
Product Description
EMULSOL K-SIL 408 spray adjuvant is a super spreading surfactant based on a trisiloxane ethoxylate. EMULSOL K-SIL 408 spray adjuvant lowers the surface tension of spray solutions, beyond that which is achievable with conventional adjuvants.Typically, EMULSOL K-SIL 408 spray adjuvant (@ 0.1 wt %).gives an aqueous surface tension of <22 mN/m. On the other hand, an octylphenol ethoxylate containing 10 EO units (a commonly used nonionic surfactant) at 1.0 wt % gives a surface tension of only 30 mN/m.
The bottom line? EMULSOL K-SIL 408 spray adjuvant helps lower the aqueous surface tension more effectively than conventional spray adjuvants.
Key Features and Typical Benefits
- Superspreader for soluble liquid and emulsifiable concentrate formulations
- Promotes spray volume reduction
- Promotes rapid uptake of agrochemicals (rainfastness)
- Improves spray coverage
- Nonionic
- Meets requirements of EPA 40CFR§180.910
Typical Physical Properties
| Property | Result |
|---|---|
| Surface Tension (0.1%, mN/m)(a) | 21.5 |
| Cloud Point (0.1 wt%), °C | <10 |
| Viscosity (cSt @ 25°C) | 35 |
| CMC (Wt%) (b) | 0.007 |
| Pour Point, °C | - 8 |
| Specific Gravity (25/25°C) | 1.020 |
| Flash Polnt(c) °C | 118 |
(2) Critical Micelle Concentration
(3) Pensky Martens Closed Cup, ASTM Method D93
Product Description
Because EMULSOL K-SIL 408 spray adjuvant is a superspreading surfactant, the contact angle of spray solutions on leaf surfaces i~ reduced, leading to an increase in spray coverage.Additionally, under specific conditions, EMULSOL K-SIL 408 spray adjuvant promotes rapid uptake of agrochemicals into plants via stomatal infiltration. Spray solutions taken into plants in this way become rainfast, thereby improving application reliability.
Unlike other trisiloxane alkoxylates, which are negatively affected by oil based components (i.e. EC formulations, spray oils, etc.), EMULSOL K-SIL 408 spray adjuvant provides enhanced spreading in many of these types of formulations relative to competitive organosili¬cone based adjuvants.
EMULSOL K-SIL 408 spray adjuvant is non ionic in nature, making it useful with a broad range of agrochemical formulations.
How to Use
In Agrochemical FormulationsEMULSOL K-SIL 408 spray adjuvant may be used as a component in agrochemical formulations. Although organosilicone surfactants are subject to hvdrolvsis under acidic or basic conditions, optimum performance is achieved by buffering the formulation to pH 6.5 - 7.5. Additionally, it is recommended that EMULSOL K-SIL 408 spray adjuvant be used at a concentration of at least 5%, based on the total formulation.
As A Tank Mix Adjuvant
EMULSOL K-SIL 408 spray adjuvant, when used as a tank-side adjuvant may be used to improve spray coverage, improve uptake or to allow for a reduction in spray volume. EMULSOL K-SIL 408 spray adjuvant is most effective as a tank-side adjuvant when spray mixtures are 1) within a pH range of 5-8, and 2) used within 24 hours of preparation.
High spray volumes, coupled with high surfactant rates, are not required to achieve sufficient coverage with EMULSOL K-SIL 408 spray adjuvant. In fact, EMULSOL K-SIL 408 spray adjuvant has the potential to provide adequate coverage in many low volume spray applications at rates between 0.025% and 0.1%.
Potential Applications
EMULSOL K-SIL 408 spray adjuvant has been used successfully in spray applications globally. Typical applications include:
| Application | Typical Use Rate(a) |
|---|---|
| Plant Growth Regulators | 0.025% to 0.05% |
| Herbicide | 0.025% to 0.15% |
| Insecticide | 0.025% to 0.1% |
| Fungicide | 0.015% to 0.05% |
| Fertilizers and Micronutrients | 0.015% to 0.1 % |