What are the methods for identifying the fungicide streptomycin?
How do you identify the fungicide streptomycin? Please provide guidance on the methods. Identifying genuine versus fake streptomycin pesticide is not difficult as long as you master the identification methods. Several simple physical identification methods are described below: 1. Hand-rubbing method: Genuine streptomycin fungicide does not feel slippery when touched by hand and becomes sticky after a certain period of time. Fake pesticide feels smooth when rubbed between the fingers, ...
How do you identify the fungicide streptomycin? Please provide guidance on the methods
Identifying genuine versus fake streptomycin pesticide is not difficult as long as you master the identification methods. Several simple physical identification methods are described below:
1. Hand-rubbing method: Genuine streptomycin fungicide does not feel slippery when touched by hand and becomes sticky after a certain period of time. Fake pesticide feels smooth when rubbed between the fingers and makes a "creak, creak" sound, which may be starch; if it does not feel sticky when rubbed between the fingers, it may be flour.
2. Water-dissolving method: Genuine pesticide dissolves completely when poured into water, forming a colorless transparent liquid. Fake pesticide does not dissolve when water is added; if it forms a white cloudy liquid, it may be starch; if it does not dissolve when water is added and sinks relatively slowly, it may be flour.
3. Heating method: Genuine pesticide remains a colorless transparent liquid after water is added and it is heated. Fake pesticide forms a semi-transparent colloid after water is added and it is heated, which is starch; if it forms a paste after water is added and it is heated, it is flour.
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