My SN is over 3 years old and sealed in a plastic bottle. Is it still good?

[Pryras]

I ordered it 3 years ago before it was banned off the seller's website.
The description is: Food Grade Sodium Nitrite, 2 lb, 2 lb Air-Tight Container w/ Child Safety Cap, 99+% Granular Form, Free-Flowing.

Without ordering an aquarium test, is there a way to know if it's still good or not? It's been 3 years and has been untampered with.

 

[maniac116]

You can do the "blood test". You need to look thru the megathreads or ask someone else exactly how to do it but essentially you take a drop of blood & put SN on it. It should clump up & turn dark.
SN is pretty stable so you should be fine if it hasn't been exposed to lots of heat or light

 

[LostSoul1965]

I ordered it 3 years ago before it was banned off the seller's website.
The description is: Food Grade Sodium Nitrite, 2 lb, 2 lb Air-Tight Container w/ Child Safety Cap, 99+% Granular Form, Free-Flowing.

Without ordering an aquarium test, is there a way to know if it's still good or not? It's been 3 years and has been untampered with.

No way of knowing without testing it or if others have tested this brand. SN has a very long shelf life if stored properly. Unless it's a bad batch chances are you are fine.