How to identify platinum rhodium wire, how to identify platinum rhodium wire

In fact, if it is pure platinum, it can be made of electrode method, platinum can be made of electrode, the phenomenon is very different from other electrodes, but the production method of this electrode is very difficult, and the connection of the wire can not use ordinary wire, and the point is that this is a platinum-cymbium alloy, with impurities, it will change, and even lead to positive and negative changes in the electrode.

Another way to do this is the flame reaction of metals. Generally, platinum wire is used for flame color reaction. After the platinum wire embedded in the glass rod is dipped in dilute hydrochloric acid, it is burned in the flame of the alcohol lamp (preferably a gas lamp, because its flame color is light and the temperature is high) until it is the same color as the original flame, and then the platinum wire is dipped in the test solution, and then placed on the flame, then the characteristic flame color of the elements contained in the test solution can be seen.

In platinum-ridium wire, platinum is used as the substrate, and then burned to test the flame reaction color of the eryllium. In this way, compare the color of the flame with the flame color reaction table to know whether it is rhodium metal.

There is also a way to make a homemade galvanic battery. In this way, the two metals are dissolved separately into the solution. Then take the displacement reaction or metathesis reaction to verify. However, the selection of the electrolyte and the selection of the other electrode still need to be checked and determined.

I judge the specific gravity roughly, and if I don't do it, I compare it with gold.

The local method is all based on this. The experience has reached the Nine Elements.

Slow refining.

This kind of thing my dad can take ten of ten, just get his hands on it.

He has so many years of experience.

I'm a layman. Wretched.

1. Observation.

1. Using the observation method, we can distinguish platinum and platinum fiber rhodium wire, the soft is platinum, and the hard is platinum rhodium wire.

2. Observation method 2, observe the luster of the sample, the luster of platinum rhodium wire is brighter than that of ** filament.

3. Fire burning method, use a lighter to burn a red sample, wipe off the black on the surface after cooling, and then compare it with the part that is not burned, if the color is the same, it is platinum rhodium wire, and the discoloration is not.

4. Contact method 1, bend our sample repeatedly by hand, if the sample is not easy to break and soft, it is platinum rhodium wire, the bend becomes hard, and Qiaoye is easy to break, it can be judged as nickel-chromium wire.

5. Contact method 2, the thermal conductivity of platinum rhodium wire is relatively good, we use a lighter to heat a section of the sample, generally the other end of the other end we can feel the heat very quickly, and the cooling is also relatively fast.

6. Density comparison method, we can cut off a part of the sample, weigh the sample, and pass the drainage method.

Measure its volume, through the density calculation formula: density = mass volume, calculate the sample density, if the density is consistent with the density of platinum rhodium wire, it is a real platinum rhodium wire.

Summary. 4. Contact method 1, bend our sample repeatedly by hand, if the sample is not easy to break and soft, it is platinum rhodium wire, the bend becomes hard, and it is easy to break can be judged as nickel-chromium wire.

5. Contact method 2, the thermal conductivity of platinum rhodium wire is relatively good, we use a lighter to heat a section of the sample, generally we can feel the heat at the other end soon, and the cooling is relatively fast.

6. Density comparison method, we can cut off a part of the sample, weigh the sample, and measure its volume by the drainage method, through the density calculation formula: density = mass volume, calculate the sample density, if the density is consistent with the density of platinum rhodium wire, it is really platinum rhodium wire.

How to identify platinum rhodium wire.

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You can refer to the following methods for the identification of platinum rhodium wire: 1, observation method 1, using the observation method, we can identify platinum and platinum rhodium wire, the soft is platinum, and the hard is platinum rhodium wire. 2. Observation method 2, observe the luster of the sample, the luster of platinum rhodium wire is brighter than that of Changqi wire. 3. Fire burning method and Xun Sou, use a lighter to burn a red sample, wipe off the black on the surface after cooling, and then, compare with the part that is not burned, if the color is the same, it is platinum rhodium wire, and the discoloration is not.

4. Contact method 1, repeatedly bend our sample Zen product by hand, if the sample is not easy to break and soft, it is platinum rhodium wire, the bend becomes hard, and it is easy to break can be judged as nickel-chromium wire. 5. Contact method 2, the thermal conductivity of platinum rhodium wire is relatively good, we use a lighter to heat a section of the sample, generally we can feel the heat at the other end soon, and the cooling is relatively fast. 6. Density comparison method, we can cut off a part of the sample, weigh the sample in the dust, and measure its volume by the drainage method, through the density calculation formula:

Density = mass volume, calculate the sample density, if the branch density is consistent with the density of platinum rhodium wire, it is a real platinum rhodium wire.

Dear, I am glad to answer for you: the identification method of platinum rhodium wire is as follows: use a digital display table, adjust the index number to the corresponding index number of platinum rhodium hot stove jujube trace galvanic index, weld the front end of platinum rhodium wire, and use fire to compare with a standard, if there is an error in the low temperature range, the high temperature error is getting smaller and smaller, which is not enough purity.

1) Burning method: take a sample, use a lighter to ignite the red sample in the lower part of the sample for a period of time, when the sample is naturally cooled by the red and then wipe off the black on the surface, if the color of the sample is the same as before, it is platinum rhodium wire, and it is not discolored. (2) Contact method:

Based on the characteristics of platinum rhodium and two metals, as well as our usual experience, we can repeatedly bend the sample in our hand with our hands, and if the sample is soft and not easy to break, it is platinum rhodium wire. On the contrary, if it is broken or there are dead marks, it is identified as nickel rock chromium wire or iron wire.

Platinum rhodium wire is a platinum-based rhodium-containing binary alloy.

Platinum rhodium wire has a wide range of uses in our industrial age, in steel, power generation, petroleum, chemical, glass fiber, food, glass, pharmaceutical, ceramics, non-ferrous metals, heat treatment, aerospace, powder metallurgy, carbon, coking, printing and dyeing and other fields have the application of platinum rhodium wire.

Identification of platinum rhodium wire

1. Hand feel method: With years of experience, we can use the hand feel method to identify platinum wire and platinum rhodium wire, the soft one is platinum, and the hard one is platinum rhodium wire.

2. Observation method: look at the luster on the platinum rhodium wire, the luster of the platinum rhodium wire is more glossy than the silver wire.

3. Fire burning method: After the general metal is burned with a firearm and discolored, there will be traces of burning after wiping, while the color of platinum rhodium wire will not change after cooling.

4. Contact method: bend our sample repeatedly by hand, if the sample is not easy to break and soft, it is platinum rhodium wire, the bend becomes hard, and it is easy to break can be judged as nickel-chromium wire.

5. Contact method: the thermal conductivity of platinum rhodium wire is relatively good, we use a lighter to heat a section of the sample, generally we can feel the heat soon at the other end, and the cooling is relatively fast.

6. Density comparison method, we can cut off a part of the sample, weigh the sample, and measure its volume by the drainage method, through the density calculation formula: density = mass volume. Calculate the sample density, if the density is consistent with the density of platinum rhodium wire, it is a real platinum rhodium wire.

<> platinum rhodium wire is mainly used as a thermocouple.

Materials, such as PTRH0 PT, PTRH13 PT, etc., are used as thermocouple wires in thermocouples to directly measure or control the temperature of fluids, vapors and gaseous media and solid surfaces in the range of 0-1800 in various production processes. Rhodium improves the alloy's thermoelectric potential to platinum, oxidation resistance and acid corrosion resistance. There are alloys such as PTRH5, PTRH0, PTRH3, PTRrh30 and PTRH40.

Alloys greater than 20% RH are insoluble in aqua regia.

Industrial thermocouples have platinum rhodium wire B type, S type, R type, platinum rhodium thermocouple, also known as high temperature *** thermocouple, platinum rhodium has single platinum rhodium (platinum rhodium 10-platinum rhodium) and double platinum rhodium (platinum rhodium 30 - platinum rhodium 6), they are used as temperature measurement sensors, usually used with temperature transmitters, regulators and display instruments to form a process control system.

It is used to directly measure or control the temperature of fluids, vapors and gaseous media and solid surfaces in the range of 0-1800 in various production processes. The industries used are steel, power generation, petroleum, chemical, glass fiber, food, glass, pharmaceutical, ceramics, non-ferrous metals, heat treatment, aerospace, powder metallurgy.

Carbon, coking, printing and dyeing and other industrial fields.

Platinum rhodium wire is generally used in industrial thermocouples.

There are inside. At present, platinum rhodium wire is widely used in all kinds of thermocouple wires, used to measure and control the temperature of some high-temperature fluids, steam, gaseous media and other temperatures generated in the production process, and the upper limit of platinum rhodium wire temperature measurement is high, which can generally cope with the temperature range of about 0 1800 °C.

Where is platinum rhodium wire available

At present, platinum rhodium wire has accuracy in the thermocouple series.

High quality, strong stability, wide temperature measurement range, long service life and other high-quality characteristics.

Platinum rhodium wire is generally suitable for oxidizing properties.

and inert atmosphere, the leak can also be used in a vacuum for a short period of time, and is usually not suitable for the reducing atmosphere of platinum rhodium wire and the vapor atmosphere containing metals such as search or non-metal.