How to tell pure titanium eyeglasses frames?

[Izayah]

I just bought a pair of pure titanium eyeglasses frames from a local optical store. The shop assistant told me its frame is made of pure titanium. But I am a little doubted. How can I tell whether it is made of pure titanium?

[Zachery]

First, you can tell pure titanium eyeglasses frames by checking the weight. Titanium eyeglasses frames are much lighter than other metal frames. Next, check whether there are signs of discoloration or corrosion. Titanium should have no signs of signs of discoloration or corrosion because titanium is a corrosion-resistant metal.

[Westin]

One simple method to identify titanium eyeglasses frames is detecting the proportion of frames. The proportion of pure titanium eyeglasses frame is 4.5g/cm3, while the proportion of alloy frame is about 8.9g/cm3.

[Alvaro]

1.Check the frame and see if there are signs of discoloration or corrosion. 2. Check the weight, Titanium eyeglasses frames are much lighter than other metal frames.