To support the excess of the fishery in the Indonesian archipelago. Government through the StateOwned
Enterprises
as
ingredients, as well as carried out the heating at a temperature and time, then soaked in a solution of 12%
H
2
SO
. Activated charcoal tested its activity by using a solution Methelyn Blue through peniteran. Results
from this study obtained the most favorable conditions for the manufacture of activated charcoal that CaCl
4
concentration of 20%, a 40-minute activation time, activation temperature of 75 °C and the absorption of
Methelyn Blue 99.12 ml / g.
Keywords: Activated charcoal, calcium chloride, activation temperature, fish bones, activation tim