How to identify the authenticity of titanium dioxide

       The scientific name of titanium dioxide is titanium dioxide. Widely used in coatings, plastics, rubber, and ink industries. The use of GR composite titanium dioxide pigments in coating systems can achieve the same or similar performance indicators as titanium dioxide; GR composite titanium dioxide pigments can be widely used in coating systems to improve the performance of coatings and significantly reduce the cost of materials.

       There are many fake titanium dioxides on the market, which can lead to the precipitation of white substances during plastic processing. After ICP analysis, it was found that a large amount of calcium powder was added to it. In order to adjust the change in oil absorption caused by the addition of calcium powder, wax powder was also added. It made many users angry. How to identify titanium dioxide is as follows.

1. Physical methods:

       1. The simplest way is to compare the feel. Fake titanium dioxide is smoother, while real titanium dioxide is astringent;

       2. Rinse with water and put some titanium dioxide on your hands. It may be easy to wash off if it is fake, but not easy if it is true;

       3. Take a cup of water and throw titanium dioxide into it. What floats up is true and what settles down is false.

       2. Chemical methods:

       1. Mixed with light calcium or heavy calcium: adding dilute sulfuric acid or hydrochloric acid, the bubbles can make the clear lime water turbid, because calcium carbonate will react with the acid to produce carbon dioxide;

       2. Mixed with lithopone: add dilute sulfuric acid or hydrochloric acid, which smells like rotten eggs;

       3. Make latex paint, add iron red, and have a dark color, indicating that the paint with poor covering power is fake or poor quality titanium dioxide.