Viscosity modifiers (Xanthan gum, Magnesium Aluminosilicate [Veegum])

Viscosity modifiers in agrochemistry: xanthan gum and magnesium aluminosilicate (Veegum)

Thickeners and rheological additives such as xanthan gum and magnesium aluminosilicate (Veegum) are actively used in the production of SC and FS (suspension concentrates). They improve the structure of liquid preparations, prevent solid particles from settling, and ensure uniform application of plant protection products and liquid fertilizers.

Xanthan gum

Xanthan gum (E415) is a naturally occurring biopolymer obtained by fermentation using Xanthomonas campestris microorganisms. It is highly soluble in water and remains stable under conditions of strong temperature and acid-base fluctuations (pH 2-12, temperature from -18 °C to +120 °C). This makes it a reliable component in formulations of pesticides and agrochemicals. Additionally, it enhances viscosity in combination with other natural thickeners, creating a denser and more stable consistency.

Veegum (Magnesium aluminosilicate)

Veegum is a finely dispersed mineral powder based on magnesium aluminosilicate. Its addition to the formulation contributes to the uniform distribution of solids, stabilizes the emulsion phase and prevents delamination. It is especially effective in low doses, increases the thixotropic properties of the solution and facilitates the spraying of SC and FS formulations.

Application in agrochemistry:

• Formulation stability: prevention of sedimentation in suspension preparations;

• Viscosity control: maintaining a uniform structure throughout the shelf life;

• Compatibility with other ingredients: suitable for most active substances and auxiliary components.

Key Features:

Xanthan Gum:

• resistant to extreme pH and temperature values;

• compatible with other natural polysaccharides;

• Creates pseudoplastic gels that simplify application.

Veegum:

• works effectively in small doses;

• stabilizes suspensions, prevents precipitation;

• Improves texture and resistance to mechanical stress.

Criteria for selecting modifiers:

• Compatibility with the active substance: it is necessary to test the possible interaction;

• Storage and use conditions: the temperature and pH of the medium are important;

• Rheological parameters: selected depending on the method of application of the drug;

• Cost-effectiveness: the consumption rates and the total cost of the additive per 1 liter/kg of the finished product are estimated.

The inclusion of xanthan gum and Veegum in suspension concentrates (SC, FS) improves the stability, ease of use and effectiveness of agrochemicals in the field. We are ready to help with the selection of optimal additives and advise on implementation in production processes!