Question question about formaldehyde

[rampage]

hi guys
i have a bottle of formaldehyde that has been sitting for about a year, it is properly sealed and today when i had a look at it, it had a white precipitate that had obviously fallen out of solution and settled on the bottom of the bottle, is this normal for formaldehyde?
i just want to know if it is still safe to use? and can i aggitate it so it dissolves back into solution?

 

[The-Hive]

shelf life is 24 months unopend 6 months for opened bottle soo should be good

 

[rampage]

ok thanks mate