True and false fertilizer identification

It is easy to identify fertilizers, and the rust-free iron pieces are burnt red.
The fertilizers were put on the side and their performances were different.
In the case of iron, it is a ghost of urea.
If it is only melting and not smoking, the smell is carbon ammonium.
After a while, the smoke is out of Mars.
A purple flame emerges from the iron, and the sizzling is ammonium sulfate.
The smell of iron is like hydrochloric acid, which should be ammonium chloride.
Most of the calcium is grayish white, placed in the red iron nose.
Placed in red iron blasting, potassium sulphate without ammonia smell.
Ammonia phosphate fertilizer is also different, smokeless smelly people.
None of the above phenomena are seen, and there may be fake tests.
Where is the most rest assured, I advise you to find a fertilizer station.

Huaxian Agricultural Technology Promotion Center Li Dongxia

940nm Through-Hole IR LED

940nm IR LED(infrared LED) manufacturer from China.

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