Therefore in this example the manufacturers recommended weight of magnesium anodes would be 14kg to 20kg. Luckily anodes are sold by weight. Common sizes are 1.5kg, 2.5kg and 3.5kg ingots for standard weld-on canal boat anodes.nodes will offer protection based on the Noble Series of metals. The theory is that by attaching a piece of metal to the hull that is more reactive than the hull itself then this piece of metal will corrode first. For our inland waters we use sacrificial magnesium anodes for protection.
Pure water is a poor conductor of electricity while fresh water or tap water may be said to be a modest conductor and salt water has a much higher conductivity than fresh wate â¦ r. The electrical conductivity of water, both pure water and water with dissolved salts, is simpler to measure than to explain.
Wikipedia states that the thermal conductivity of water is 0.6 W/(mÂ·K) (air is 0.025 and silver is 429), electrical conductivity of drinking water is stated as 0.0005 to 0.05 S/m (silver is 63.01 Ã 106 and air 0.3 to 0.8 Ã 10-14) Water is a good insulator but poor conductor. But compared with the air, water is the better one. The substances that can easily travel or transfer the heat is conductor such as metals. But in other way, insulator cannot easily travel the heat as fast as the insulator such as water and air.