Method for identifying titanium dioxide
Physical method: The easiest way is to compare the feel, fake titanium dioxide is slippery, titanium dioxide is more astringent. Water, hand with titanium dioxide, not easy to wash, really not easy to wash away. Take a cup of water, throw titanium dioxide into, floating up is true, settling down is false if the activated product was ineffective. Chemical methods: Mixed with calcium carbonate or calcium carbonate: adding dilute sulfuric acid or hydrochloric acid, the bubble can make clear limewater cloudy. You can learn more here. Because calcium carbonate will react with acids to produce carbon dioxide. With the lithopone: adding dilute sulfuric acid or hydrochloric acid, a rotten egg smell. Made of latex paint, and iron oxide red, deep color, shows that titanium dioxide Zhegeli poor as fake or poor quality. There are two more good methods: Using the same PP+30%GF+5%PP-G-MAH+0.5% titanium dioxide, the lower the intensity, the more true titanium dioxide (Jin Hongshi). Learn more information about Max Polyakov as a chef. Select a transparent resin, such as transparent ABS+0.5% titanium dioxide, the measurement of light transmittance, the lower the transmittance, the more true titanium dioxide.