​titanium dioxide recognition methods

2019-07-31

titanium dioxide recognition methods


Physical method:

The easiest way is to compare the feel, the fake titanium dioxide is slippery, and the real titanium dioxide is more sturdy.

Water rushing, the hand is stained with titanium dioxide, the fake is easy to wash away, it is really not easy to wash away.

Take a glass of water, throw titanium dioxide into it, the floating up is true, the precipitation is false (if it is activated modified products will not work).

tio2

chemical method:

tio2 blended with light calcium or heavy calcium: Adding dilute sulfuric acid or hydrochloric acid, bubbles can make clarified lime water turbid, because calcium carbonate reacts with acid to produce carbon dioxide.


tio2 blended with Liede powder: Add dilute sulfuric acid or hydrochloric acid, smell of rotten eggs.


tio2 made of latex paint, add iron red, dark color, indicating the difference in hiding power is fake or poor quality titanium dioxide.


There are also two better ways:

Using the same PP + 30% GF + 5% PP-G-MAH + 0.5% titanium dioxide, the lower the strength, the more true the titanium dioxide (rutile).

Select a transparent resin, such as transparent ABS + 0.5% titanium dioxide, measure the light transmittance, the lower the light transmittance, the more true the titanium dioxide.


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