How to distinguish the real from the fake with potassium dihydrogen phosphate?
1.Look at the appearance.
Most of the true potassium dihydrogen phosphate are long columnar white crystals of 2-3 millimeters, transparent in color, uniform and neat; If it's powdery or light yellow, yellowish green, or opaque, it's mostly fake.
2.Look at the content.
For high-quality and high-purity potassium dihydrogen phosphate, the effective content marked on the packaging bag should be 98 or 99 (KH2PO4 98% or 99), where the content standard is lower than 98, it means that its purity is not enough.
3.Look at the packaging.
*There will be a striking "potassium dihydrogen phosphate" on the packaging, and the implementation standard is HG2321-92, with a total nutrient content of 86%, including 52% for P2O5 and 34% for K2O. There are no other words such as "type", "type", "genuine", "trace element", "complex", "improved", etc., so that all of them can be regarded as fakes.
4.Smell the smell.
Real potassium dihydrogen phosphate smells tasteless, and if it smells, it's a fake. Even if it is burned or exposed to the sun, it has no taste.
5.Heat identification.
Take a small amount of potassium dihydrogen phosphate and heat it on an iron sheet, if it dissolves into a transparent liquid and solidifies into a translucent object after cooling, it is genuine; Otherwise, it is a fake.
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