What factors can cause changes in the quality of pesticides during storage and transportation?

A chemical pesticide is a chemical synthesized by chemical reaction of two or more substances under certain conditions.

Since pesticides are a kind of chemical substance, of course, they are also affected by natural factors such as light, heat and humidity, and the original performance changes, and even deteriorates. There are many factors that cause changes in the quality of pesticides during storage and transportation. The main ones are:

1 temperature. The higher the temperature, the greater the impact on the quality of the pesticide. In addition, the temperature below zero is also affecting the quality of pesticides, especially liquid pesticides, which are prone to crystallization or precipitation, reducing emulsifying power and reducing efficacy.

2 humidity. Too much humidity in the air can cause changes in the quality of the pesticide and affect the efficacy. In particular, when the powder or the wettable powder pesticide absorbs the moisture in the air, it tends to agglomerate or agglomerate the powder, thereby reducing the fluidity of the powder or the suspending rate of the wettable powder, thereby reducing the control effect.

3 lighting. Light is also an important factor in the deterioration of pesticides. It can promote the photochemical reaction of active ingredients in pesticides and decompose the active ingredients.

4 raw material quality. The quality of raw materials is high, and the content of pesticides produced is also high; the quality of raw materials is low, not only the low effective ingredients of the finished products, but also a lot of impurities, increasing the toxicity of pesticides to humans and animals. This is most evident in the synthesis of organophosphorus pesticides.

5 pesticide packaging. In particular, the sealing of emulsifiable pesticides should be strict. If the packaging is not tight and not good, it will easily cause the product to absorb moisture and decompose and volatilize, and it is easy to contact with the oxidative decomposition of air to cause quality changes. This is the case with omethoate.

According to some physical and chemical properties of pesticides, in addition to temperature, humidity, sunlight, air, pressure, etc. have an impact on the quality of pesticides, as well as Acid and Alkali have a great impact on the quality of pesticides. Therefore, most pesticides cannot be contacted with acids or alkaline substances during storage.

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