Methods Of Identifying Titanium Dioxide

- Jun 26, 2017 -

1. Physical method: The simplest method is to compare feel, false titanium dioxide is slippery, true titanium dioxide is more astringent; water rush, the hands of a bit of titanium dioxide, fake easy to blunt off, really not easy to wash off, take a glass of water, throw in the titanium dioxide, float up to the true, precipitate down for the false (if the activation of the product is not the spirit of the AH).

2. Chemical method: mixed with light calcium or heavy calcium: add dilute sulfuric acid or hydrochloric acid, there is a bubble can make clear lime water turbidity, because calcium carbonate reacts with acid to produce carbon dioxide; powder: add dilute sulfuric acid or hydrochloric acid, smelly egg odor, make latex paint, add red iron, color depth, indicating that the hiding power is false or poor quality of titanium dioxide.