Physical methods

1. The easiest way is to compare the feel, the more slippery fake titanium dioxide, titanium dioxide than the real astringent

2. flush, hand dip titanium dioxide, easy to wash away the fake, is not easy to wash away

3. Take a glass of water, throw into titanium dioxide, float is true, precipitation down false (if it is activated modified product would not work).

Chemical Methods
1. Light mixed with calcium or TSP: adding sulfuric acid or hydrochloric acid, bubbles can clarify the lime becomes cloudy because of calcium carbonate will react with acids to produce carbon dioxide

2. mixed with lithopone: adding sulfuric acid or hydrochloric acid, there is the smell of rotten eggs

3. made of latex, with iron red, dark, hiding poor explanation is false or poor quality of titanium dioxide.

In addition there are two good methods:

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

2. Select a transparent resin, such as transparent ABS + 0.5% titanium dioxide, measuring transmittance, the lower the transmission rate, the more true of titanium dioxide.

Hangzhou Yujie Chemical Co., Ltd. Main masterbatches, pre disperse dyes, masterbatches and other products, such as our products are interested, please call our hotline: 86-571-85095115!