Análisis DIY

How to Make Homemade pH Paper Test Strips

 * Wiki how: hacer-tiras-caseras

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).