# Is my chlorine sample real?

I bought a pressurized liquid chlorine ampoule online and I was surprised how thick it was. It was more like oil than water. Here's a YouTube video showing someone else with a very similar sample.

I trust my seller but I’m wondering why is it so thick? It doesn’t flow easily.

• The only thing thick is the wall of that ampoule. – Karl Jan 5 at 9:54
• I have no idea how big the ampoule is but be very careful, chlorine gas is very bad for your lungs – Nuclear Chemist Jan 5 at 13:36

At $$\pu{20 °C}$$ dynamic viscosity of liquid chlorine is about $$\pu{0.35 mPa·s}$$ (see Figure 4 from [1, p. 7]), whereas dynamic viscosity of water is about $$\pu{1 mPa·s}$$, e.g. water is nearly 3 times more viscous at room temperature than liquid chlorine, which should not appear that thick.