Why doesn't saliva freeze solid?

Question

Why doesn't saliva freeze solid?

Answer 1

Saliva freezes at around -20 degrees Celsius. It takes a colder temperature due to the protein and salt continent.

I say around -20 because everyone has a different protein and salt content in their saliva.

Answer 2

It does. But since it's a fairly concentrated solution, by the law of freezing point depression, its freezing point is lower than that of water. If you don't think saliva freezes, stick your tongue on a metal pipe on a really cold day--but don't plan to go anywhere fast and have a friend around with plenty of warm water to unfreeze you.

Answer 3

What do you mean ? While in your mouth ? .. Because it isn't 32 degrees F. in your mouth. Spit some on the sidewalk and it will go solid as quickly as any liquid (of the same temp.) that lands on the ground. Why do you think your tounge gets stuck to a metal pole if you try to lick it when it is freezing outside ? Good Luck ! :)

Answer 4

I think it was Jack London, possibly in WHITE FANG, who wrote of a man stuck out in an Arctic freeze, who had to kill his horse and stuff himself in the carcass for warmth. At one point, while out in the cold air, he spit while standing, and before the spit could hit the ground it flash-froze with a kind of crackle or popping sound. As a result, the man knew it was around -75 degrees Fahrenheit or so, because at -50 the spit was still liquid all the way to the ground.

Answer 5

Saliva will freeze but it has a much lower point at which it will freeze.

Answer 6

It does if the temp is low enough. All matter exists in 3 states - gas, solid, and liquid.

Answer 7

Maybe salt content

Answer 8

Obviously you're not from Canada.

Answer 9

Think about it! And while you're thinking about that, ponder this: Fire is a liquid!