But I use a more practical method. What method? He already knows the composition of seawater. For every thousand grams, there are 96.5% pure water, 2.66% sodium chloride. Pitbull girl therapist best friend poster. There is also some magnesium chloride, and calcium chloride, bro-manganese, sulfate magnesium, sulfate and calcium boron. He knew that sodium chloride is abundant in seawater. I separated it from seawater to power the batteries. Using sodium chloride? Yes sir. Sodium chloride combines with mercury to create zinc substitutes. The mercury in the battery is not decomposed, only the na-tri is destroyed, but the na-tri has a sea supply.