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Demo Items
Prices
Eosin red/ Methyline blue = $2.50
The Purdue Agronomy Club sells two dyes that are used in classroom experiments and for demonstrations. One dye is positively charged and the other is negative. This is useful to explain the charge and CEC of soil. The dyes are:
Methylene Blue
Eosin Y
Purdue Agronomy Club | 915 W State St. | West Lafayette, IN 47905