What is the content of wet palladium carbon? How much palladium carbon contains the highest amount o

Due to the different raw materials, manufacturing methods, appearance shapes and applications, there are many types of activated carbon, so far there is no accurate statistical material, there are about thousands of varieties. According to the raw material **, 1Wood activated carbon.

2.Animal bones, blood carbon, 3Mineral raw material activated carbon.

4.Activated carbon from other raw materials. 5.

Recycled activated carbon is divided into manufacturing methods, 1Chemically activated carbon (chemical carbon). 2.

Physical Activated Carbon, 3Chemical-physical method or physico-chemical method activated carbon is divided into appearance and shape, 1Powdered activated carbon.

2.Granular activated carbon, 3Amorphous granular activated carbon.

4.cylindrical activated carbon, 5Spherical activated carbon, 6

Other shapes of activated carbon are divided according to the appearance shape, 1Powdered activated carbon (PAC). 2.

Granular act....

Wet palladium carbon. The content is generally between 50% and 60%. The other content is water.

Generally speaking, its content will be calculated as 50%.

For 10% palladium-carbon catalysts, the weight marked on the surface of the bag is the dry weight, and a water content will also be marked, so that the dry weight is divided by 1 water content of the catalyst gross weight. The palladium content is about 10. One kilogram of 12,000 refers to the dry weight of **, 1 gram of palladium is about 160 yuan, and the value of palladium in one kilogram is about 16,000.

Tax included, **12000 is not suitable.

Summary. A palladium-carbon alloy is an alloy containing palladium, in which the amount of palladium can be adjusted as needed. Generally speaking, the content of palladium in palladium-carbon alloys is between 5% and 5%, and the highest palladium content may reach about 10%.

However, the specific palladium content should also be determined according to the specific formula and production process of the alloy, and the palladium-carbon alloy produced by different manufacturers and manufacturers may also be different.

10% or so.

Excuse me, but please go into more detail?

Palladium-carbon alloy hypothetical is an alloy containing palladium, in which the amount of palladium can be adjusted as needed. Generally speaking, the content of palladium in palladium-carbon alloys is between 5% and 5%, and the highest palladium content may reach about 10%. However, the specific palladium content should also be determined according to the specific formula and production process of the alloy, and the amount of palladium-carbon alloy produced by different manufacturers and manufacturers may also be different.

The content of palladium chloride is about 59%. Physicochemical Properties:1. Melting point: 500 °C (lit.))。

2. Density: 4g ml at 25 °C (lit.).)。

3. Solubility of Lee's in water: insoluble.

4、merck：14,6990。

5. Stability: Stable. Contraindications: strong oxidants.

6. EPA chemical substance information: palladium chloride (PDCL2) (7647-10-1).

7. Dispersion: reddish-brown disrupting crystalline powder, deliquescent, soluble in dilute hydrochloric acid, stable in air, soluble in ethanol, acetone and hydrochromic acid.

8. Hazard category code: 34-43-40-28-41-37 38.

9. Safety instructions: 26-36 37 39-45-37 39-28-27.

Chemical Uses:1. Oxidation catalysis of the terminal alkene diameter (ene diameter) to generate methyl ketone.

2. Through the Wacker reaction, air is used as an oxidant in water-soluble Lee's solution to oxidize olefins into aldehydes.

3. It is used to detect CO (palladium chloride test paper soaked in phosphomolybdate solution will immediately turn blue when disturbed).

4、co+pdcl2+h2o=co2+pd↓＋2hcl。

5. Upstream raw materials: palladium, sponge palladium.

6. Downstream products: albuterol sulfate, supported catalyst, palladium catalyst.

The above content reference: Encyclopedia - Palladium Chloride.

take about 5g of the test sample and put it in a 250ml beaker, add 50ml of hydrochloric acid solution (1 1) and boil for 10 minutes to clean its surface. Wash three more times by boiling with water. Transfer the surface treated test sample to the weighing flask, put it in the drying oven, dry it for 110 hours at 110, take it out and put it in the dryer, and let it cool to room temperature.

Weigh the processed test sample accurately, put it in a 250ml beaker, add 20ml of dilute aqua regia, heat it on an electric furnace with a pressure regulator to near boiling until the test sample is fully dissolved, and then continue to heat to concentrate the volume of the solution to about 5ml, then add concentrated hydrochloric acid (4ml each time) in three times, steam them to nearly dry, add 14ml of 10% sodium chloride solution, steam until nearly dry, add 200ml of 7% (v v) hydrochloric acid solution, and slowly add 20ml of 1% butanedione oxime ethanol solution under stirring. After the precipitation is complete, the No. 4 quartz sand core funnel that has been dried to constant weight at 110 is used for suction filtration, washed with 7% (V v) hydrochloric acid solution until the filtrate is colorless, and then washed with water until the filtrate is neutral. After the quartz sand core funnel is drained, it is placed in a drying oven for 110 hours to dry.

Take it out and put it in the dryer to cool down and weigh until it is constant weight. The PD content is calculated as follows:

pd% = [（w1－w0）×

w1 is the weight of the constant weight of the funnel with the No. 4 quartz sand core, g; w0 is the weight of the constant weight of the No. 4 quartz sand core funnel, g; w is the weight of the test sample, g; is the conversion coefficient of butanedione oxime palladium to palladium. Allowable difference: The difference between the two parallel measurement results should not be greater than that, and the arithmetic average value of the measurement results should be taken.