Share
The Platinum Electrodes In A Conductivity Cell Are Platinized To?
Question
Introduction
Platinum electrodes are used in conductivity cells because they have a high electrical conductivity, they do not corrode or dissolve in water, and they can be made to be very pure. The process of platinizing platinum electrodes involves heating them under vacuum in stages to remove any oxide layers that may form on their surfaces. This treatment gives the platinum an extremely smooth surface that is highly resistant to corrosion by chemicals present in natural waters.
Addition of platinum to an aqueous solution containing aqueous sulfuric acid produces a colloidal suspension of platinum sulfate.
To produce colloidal platinum sulfate, you will need the following materials:
- A solution of 1 g/L of aqueous sulfuric acid in an Erlenmeyer flask.
- A platinum rod or wire about 2 cm long and 0.1 mm thick (the size is not important).
- Sulfuric acid (about 4 mL) from the fume hood. To avoid contamination, use only distilled water for this step!
The colloidal platinum sulfate is dried and the remaining water is removed by heating in an oven at 440 C.
The process is simple and can be done in a few hours. The result is an orange-red powder, which is the colloidal platinum sulfate. The purification of this product may require several steps, but it can be done at home using common laboratory equipment.
After drying, the platinum sulfate particles are placed in a vacuum vessel and heated under vacuum for about six hours until the particles become very small and round.
The platinum sulfate particles are placed in a vacuum vessel and heated under vacuum for about six hours until the particles become very small and round.
The resulting small, round particles are placed in a second vacuum chamber and heated under vacuum for another 24 hours at 400 C.
The resulting small, round particles are placed in a second vacuum chamber and heated under vacuum for another 24 hours at 400 C. This causes more of the platinum to bond onto the surface of each particle, forming larger grains that are visible to the naked eye.
After cooling to room temperature, the final product is stored in containers to prevent oxidation during use.
The electrolyte used in this type of cell is an aqueous solution of platinum sulfate (Pt(SO4)2). This compound is a good catalyst for the electrolysis of water and can be produced by adding platinum to an aqueous solution containing sulfuric acid.
The platinum electrode is platinized.
The platinum electrode is platinized. The platinum electrode is made of platinum, which is an expensive material. The platinum electrode is used in conductivity cells to measure the conductivity of solutions.
Answers ( 2 )
The Platinum Electrodes In A Conductivity Cell Are Platinized To
Platinum electrodes are a component in a conductivity cell, and as such, they play an important role in the device’s performance. The cells are used to measure the concentration of ions in a fluid, and the platinum electrodes are responsible for reading the results. The platinum electrodes are platinized to improve their conductivity. What does this mean? Essentially, it makes the platinum more effective at conducting electricity. This improves the cell’s performance and accuracy. If you’re familiar with silver electrodes, you’ll be right at home with platinum electrodes – they have a very similar appearance and function. So if you’re in need of new or replacement electrodes for your conductivity cell, be sure to check out our selection!
What is a Conductivity Cell?
A conductivity cell is a device used to measure the amount of electricity or current flowing through a material. The cell consists of two platinum electrodes in contact with each other. The cell is filled with a solution that conducts electricity, and the amount of current passing through the solution can be measured.
How Platinum Electrodes Are Platinized
Platinum electrodes are platinized to improve conductivity. Platinum is a very dense metal and improves the ability for electricity to flow through materials. Platinization causes the electrode to be coated with platinum nanoparticles, which results in an increase in conductivity.
What are the Differences between Platinum and Other Electrodes?
There are many different types of electrodes used in electrocardiography and electroencephalography, but all have one common goal: to measure the electrical current through the body. Electrodes are made from different materials, but all have one thing in common- they allow electricity to flow freely through them.
One type of electrode is platinum. Platinum is a precious metal that’s often used in jewelry, so it may come as a surprise that platinum is also an excellent electrode material for conducting electricity. The main reason why platinum is such a good conductor is because it has a very high surface area- which means that there are a lot of tiny points on its surface where electricity can flow freely.
Another type of electrode is gold. Gold has a lower surface area than platinum, which means it can’t conduct as much electricity. This is why gold plating is usually only used on silver or copper electrodes, because these metals have higher surface areas and can therefore handle more voltage and current.
There are other types of electrodes too, but those are the two most commonly used in electrocardiography and electroencephalography.
What are the Applications of Platinum Electrodes in a Conductivity Cell?
Applications of platinum electrodes in a conductivity cell include the detection and measurement of current, potential, and resistance. Platinum electrodes are also used in electrochemical cells to identify the presence or absence of an element or compound. In general, platinum electrodes are more sensitive than other types of electrodes, which makes them well-suited for use in certain applications.
Conclusion
Platinum electrodes are platinized to increase their conductivity and make them suitable for use in a conductivity cell. Platinum is a precious metal that is hard to find and expensive, so plating it onto the electrode makes it more affordable and easier to use.
Platinum, Pt, is a chemical element with symbol Pt and atomic number 78. It is a dense, malleable, ductile and highly unreactive metal. The name is derived from the Spanish term platina (little silver), which is probably derived from platina (itself originally derived from the Italian word palladio), the word for silver used by Italian miners in Northern Spain and their Germanic neighbours during the Renaissance. Platinum is one of the rarest elements in Earth’s crust, with an average concentration of approximately 0.0001 parts per million (ppm). When first discovered as an impurity in gold deposits in 1803 by William Hyde Wollaston, it was mistakenly named iridium after the Greek mythological character Iris who symbolized both wisdom and messenger goddesses because they shared many properties; this mistake was corrected later that year when chemist Smithson Tennant showed that platinum was distinct from iridium.
Platinum is a very noble metal in the periodic table.
Platinum is a transition metal, meaning it has an incomplete d-shell. In other words, platinum’s electrons are not completely shielded from their nucleus by the innermost electrons of its atom. This allows them to move freely throughout the entire atom, making it a good conductor of electricity and heat.
Platinum has a high melting point (1750 C) and density (21 g/cm3), which makes it ideal for use as electrodes in conductivity cells because they do not deform under high temperatures or pressures needed during electrolysis experiments.
Platinum is malleable and ductile.
Platinum is malleable and ductile. Malleability is the ability of a metal to be hammered or pressed into thin sheets. Ductility is the ability of a metal to be drawn into wire. Platinum is one of the most malleable and ductile metals known, exceeded in these properties only by gold, silver and mercury among non-precious metals.
The density of platinum is 21.45 g/cm3 at STP.
The density of platinum is 21.45 g/cm3 at STP, which is the same as the density of water and air. The density of lead, on the other hand, is 11.35 g/cm3 at STP.
The melting point of platinum is 1768 oC.
Platinum is a very noble metal, meaning that it does not react with most other elements. The melting point of platinum is 1768 oC and the boiling point is 3827 oC. In addition to its physical properties, platinum is also malleable and ductile which means it can be shaped into sheets or wires by rolling or drawing it out into thinner strips using shears (a tool used for cutting metal).
Platinum’s density at STP (standard temperature and pressure) is 21.45 g/cm3 which makes it one of the densest elements in existence today! Platinum has an extremely high resistance to oxidation even in air or water so it doesn’t rust like other metals do when exposed to oxygen over time
Platinum is extremely resistant to oxidation, even in air or water.
Platinum is extremely resistant to oxidation, even in air or water. This property makes platinum ideal for use as an electrode in a conductivity cell. The oxidation state of platinum is 0 (zero), meaning that it does not react with oxygen or other elements that may be present in the solution being measured. In contrast, most metals have an oxidation state greater than zero and therefore are more likely to oxidize while they’re conducting electricity through your body–not good news if you have a pacemaker!
Platinum has an unusually high coefficient of expansion (30 ppm/K) and a low thermal conductivity.
Platinum has an unusually high coefficient of expansion (30 ppm/K) and a low thermal conductivity. The combination of these properties makes platinum ideal for use in electrical contacts and medical devices, where its high coefficient of expansion keeps the contact area small and maintains electrical contact even at high temperatures.
Due to its malleability, strength and high resistance to corrosion, platinum is used for jewelry, electrical contacts and medical devices such as heart pacemakers and artificial joints.
Platinum is a very noble metal, which means that it does not react with most other elements. Because of this property, it’s used in jewelry and electrical contacts. It has a high resistance to corrosion and is malleable and ductile, making it easy to work with in crafting jewelry pieces like rings or necklaces.
Platinum’s density at standard temperature and pressure (STP) is 21.45 grams per cubic centimeter (g/cm3). Its melting point is 1768 degrees Celsius (3486 K).
Takeaway:
Platinum is one of the most precious metals in the world. It has been used in jewelry and electrical contacts for centuries, and it’s also used as a catalyst in chemical reactions that produce drugs used to treat cancer and other diseases.
Platinum is malleable and ductile–meaning it can be shaped by hammering or rolling it into sheets, wires or tubes. Its high coefficient of expansion makes platinum an excellent conductor: Its rate of expansion when heated is nearly twice that of copper’s (0.00015 mm/m K). This property means that platinum-based electrodes are ideal for use in conductivity cells where large amounts of current flow through small distances between two points on opposite sides of an electrolyte solution such as water or salt solutions
As you can see, platinum is a very valuable metal that has many uses. It’s important to know the properties of platinum so that you can identify it in your everyday life!