Análisis DIY

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How to Make Homemade pH Paper Test Strips


Recomendado particularmente el método 2 con col lombarda. Recommended specially red cabbage leaves method (method 2).It is possible to use coffe filters as papers strips.

pH table
-—COLOR—————PH——-
Rojo intenso—————2
Rojos violaceos———-4
Rojos violeta—————6
Azul violaceo————-7
Azul—————————7.5
Azul verdoso—————9
verde————————12

(Here pH table as picture).