yes, it is. great idea for a cheap corrosion proof electrode. You can get graphite from drawing 'leads' for mechanical pencils, but something a bit more solid (and more surface area which is also your friend) is the electrodes from a 6v 'lantern batter'. Those are the large rectangular prism brick-like deals that go in the plastic square case flash-lights. I recommend a cheap Never-ready or the like. (Note: a dead battery is fine b/c you want to open (destroy) the case and pull out the four black graphite rods with minimal damage; will blacken your hands, but washing will remove this. Also, the more expensive batteries have notabliy larger diameter electrode rods - guess you get what you pay for....)
it helps to ionize the water if maximizing current/dropping resistance is the goal. Salt works just fine; just disolve in. (if you what more resistance use Distilled water (no salt), at your local grocery store)
What is added to graphite to make water soluble pencils
Yes, a mixture of graphite and water can conduct electricity. Graphite consists of carbon atoms arranged in layers, allowing it to conduct electricity due to the mobility of its delocalized electrons. When mixed with water, the conductive properties of graphite remain, enabling the mixture to carry an electric current, although the conductivity may be lower than that of pure graphite. However, the overall conductivity will also depend on the concentration of graphite in the mixture.
The heat released by burning the graphite can be calculated using the temperature rise of the water and the heat capacity of the calorimeter. Firstly, calculate the heat absorbed by the water: Q = m * c * ΔT, where m is the mass of water and c is its specific heat capacity. Then, subtract the heat absorbed by the water from the total heat released by the graphite to find the heat produced by the combustion of the graphite.
Graphite colloidal solution typically consists of dispersed graphite particles in a solvent such as water or an organic solvent. The graphite particles are generally in the nanometer size range and can be stabilized using surfactants or polymers to prevent aggregation.
Lead pencils actually contain graphite, not lead. The "lead" in a pencil is a mix of graphite and clay.
Water Graphite is an excellent electrical conductor.
Nothing, It will sink but it won't react with water at room temperature. You have to heat graphite to something like 800 degrees Celsius to react with water at that temperature it will react with steam to produce carbon monoxide and hydrogen gas.
What is added to graphite to make water soluble pencils
To create a graphite color, mix black and white together. Start with a base of black paint and gradually add small amounts of white until you reach the desired shade of gray.
Diamond, graphite, and buckminsterfullerene are made of pure carbon and are insoluble in water.
Yes, a mixture of graphite and water can conduct electricity. Graphite consists of carbon atoms arranged in layers, allowing it to conduct electricity due to the mobility of its delocalized electrons. When mixed with water, the conductive properties of graphite remain, enabling the mixture to carry an electric current, although the conductivity may be lower than that of pure graphite. However, the overall conductivity will also depend on the concentration of graphite in the mixture.
The specific gravity of graphite is around 2.2 to 2.3, which means it is denser than water. This property allows graphite to sink in water rather than float.
The heat released by burning the graphite can be calculated using the temperature rise of the water and the heat capacity of the calorimeter. Firstly, calculate the heat absorbed by the water: Q = m * c * ΔT, where m is the mass of water and c is its specific heat capacity. Then, subtract the heat absorbed by the water from the total heat released by the graphite to find the heat produced by the combustion of the graphite.
Lead was never actually used in pencils. The "lead" in pencils is actually a mix of graphite and clay. The switch to using graphite in pencils occurred in the 16th century.
The lead in a pencil is not actually lead, but rather a mix of graphite and clay. Graphite is a carbon-based mineral that allows for smooth writing or drawing when applied to paper.
Drinking water that contains graphite is generally not considered toxic, as graphite is chemically inert and non-toxic to humans. However, ingesting it can lead to potential health issues, such as gastrointestinal discomfort or irritation. Additionally, the presence of graphite may indicate contamination with other harmful substances, depending on the source. It's best to avoid consuming contaminated water and to seek clean drinking water.
Light water reactors are generally considered safer than graphite moderated power reactors. This is because light water reactors use water as a coolant and moderator, which has lower risk of reactor core overheating and graphite fires compared to reactors that use graphite as a moderator. Light water reactors also have more robust safety features that make them more resistant to accidents.