识别方法
recognition methods
物理方法：
Physical methods:
最简单的方法是比较手感，假钛白粉较滑，真钛白粉较涩。
The simplest way is to feel better. The pseudotitanium dioxide is slippery and the real titanium dioxide is astringent.
水冲，手上沾点钛白粉，假的容易冲掉，真的不容易冲掉。
Water flushing, hands stained with titanium dioxide, false easy to flush, really easy to flush.
取一杯清水，丢钛白粉进去，浮上来的为真，沉淀下去的为假(如果是活化改性的产品就不灵）。
Take a glass of water, throw in titanium dioxide, float up for real, precipitate down for false (if it is activated modified products will not work).
化学方法：
Chemical methods:
掺了轻钙或重钙：加入稀硫酸或盐酸，有气泡可以使澄清石灰水变浑浊，因为碳酸钙会与酸反应产生二氧化碳。
Mixed with light or heavy calcium: add dilute sulfuric acid or hydrochloric acid, there are bubbles can make clarified lime water turbid, because calcium carbonate reacts with acid to produce carbon dioxide.
掺了立德粉：加入稀硫酸或盐酸，有臭鸡蛋气味。
Mixed with lithopone: add dilute sulfuric acid or hydrochloric acid, smelling of rotten eggs.
做成乳胶漆，加铁红，颜色深，说明遮盖力差的为假或质量很差的钛白粉。
Made into latex paint, with iron red, dark color, indicating that the poor covering power is false or poor quality titanium dioxide.
另外还有两个比较好的方法：
There are also two better ways:
利用同样的PP+30%GF+5%PP-G-MAH+0.5%钛白粉，强度越低，钛白粉（金红石）越真。
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).
选择一个透明树脂，比如透明ABS+0.5%的钛白粉，测量透光率，透光率越低，钛白粉越真。
Choose a transparent resin, such as transparent ABS + 0.5% titanium dioxide, and measure the transmittance. The lower the transmittance, the more true the titanium dioxide.