Pesticide grade silica
Silica is a synthetic product and is a hydrated silica. White carbon has similar appearance and function to carbon black. It is therefore called white carbon black. It is a white loose powder, light in weight, large in specific area, and capable of adsorbing and dispersing.
The price difference of white carbon black in the market can reach ten times, because the production process and quality of the products are different.
According to the introduction of white carbon black manufacturers, it is divided into gas phase white carbon black and precipitated white carbon black. The gas phase white carbon black is mostly imported and the price is high. Most of the domestic precipitation of white carbon black. The domestic precipitation method of silica production is also divided into two types, standard and special. The price of white carbon produced by special methods is often twice that of the standard method.
Different pesticide formulations require different requirements, and everyone needs to choose a cost-effective product.
The functions in pesticide formulations are summarized as follows
In solid pesticide solid preparations, such as WPWDG as a carrier, wettability, suspensibility and storage stability can be improved.
Commonly used in SC and OD in liquid preparations,
Silica is often classified in stabilizers in SC, and settled silica is commonly used in SC.
White carbon black has the functions of thickening, anti-settling, anti-sedimentation and storage stability in SC, preventing SC “paste”
In the OD dosage form, the quality of the white carbon black is high, and the gas phase white carbon black is often used, which is classified as a structural stabilizer.
It exhibits thickening and rheology control properties in OD. Silica can form a three-dimensional structure when it is allowed to stand in a liquid, increasing the viscosity and the yield point under standing. When shearing, a shear thinning effect can be formed. Therefore, in the OD, there are functions of anti-settling, anti-layering, thickening, and research and development.