The xanthan gum has good suspension effect on insoluble solids and oil droplets. Xanthan gum sol-gel molecules can form super-binding banded helical **** polymer, constituting a fragile gel-like mesh structure, so it can support the solid particles, droplets and bubbles in the form of a strong emulsification and stabilization role and high suspension capacity. Xanthan gum can dissolve quickly in water and has good water solubility. It can be dissolved especially in cold water, which can eliminate the complicated processing and make it easy to use. However, because it has a strong hydrophilicity, if you directly add the water small and mixing is not sufficient, the outer layer of water absorption and expansion into a gelatinous mass, which will prevent the water from entering the inner layer, thus affecting the role of play, so we must pay attention to the correct use. Xanthan gum dry powder or with salt, sugar and other dry powder auxiliaries mixed together and slowly added to the water being stirred to feed, made into a solution for use. Xanthan gum solution has a low concentration and high viscosity characteristics (1% aqueous solution of viscosity equivalent to 100 times the gelatin), is a highly efficient thickener. Xanthan gum aqueous solution has high viscosity under static or low shear effect, and under high shear effect, it shows a sharp drop in viscosity, but the molecular structure remains unchanged. And when the shear force is eliminated, the original viscosity is immediately restored. The relationship between shear force and viscosity is completely plastic. Xanthan gum pseudoplasticity is very prominent, this pseudoplasticity is extremely effective in stabilizing suspensions and emulsions. The viscosity of xanthan gum solution will not change greatly with the change of temperature, general polysaccharide viscosity changes due to heating, but the viscosity of the aqueous solution of xanthan gum in the 10-80 ℃ between the viscosity is almost unchanged, even if the low concentration of aqueous solution in a wide range of temperatures still shows a stable high viscosity. 1% xanthan gum solution (containing 1% potassium chloride) from 25 ℃ heating to 120 ℃. to 120℃. Its viscosity is only reduced by 3%.