| Appearance: | powder |
|---|---|
| Brand Name: | Fengyuan |
| Purity: | 99% |
| Type: | Pharmaceutical Intermediates |
| CAS No.: | 7440-05-3 |
| Place of Origin: | China (Mainland) |
| EINECS No.: | 231-115-6 |
| MF: | Pd |
| Other Names: | Palladium |
| Product name: | palladium |
| MDL: | MFCD00011167 |
| Molecular Weight: | 106.420 |
| Molecular formula: | Pd |
Quick Details
Specifications
Palladium CAS 7440-05-3
| Product name | Palladium |
| CAS | 7440-05-3 |
| EINECS | 231-115-6 |
| MDL | MFCD00011167 |
| Density | 1.025 g/mL at 25 °C |
| Boiling point | 2970 °C(lit.) |
| Melting point | 1554 °C(lit.) |
| Flash point | N/A |
| Molecular formula | Pd |
| Molecular Weight | 106.420 |
| Precise quality | 105.903481 |
| Appearance | Powder |
| Storage conditions | Store in a cool, ventilated warehouse.Keep away from fire and heat.Should be stored separately with acids, halogens, do not mix storage.Equip with the appropriate variety and quantity of fire fighting equipment.the storage area should be equipped with suitable materials for leakage.Store in a dry, clean warehouse. |
| the stability of | Avoid contact with oxides, strong acids, bases and halogens.Soluble in aqua regia, hot nitric acid, sulfuric acid, slightly soluble in hydrochloric acid, insoluble in cold water and hot water.Ultrafine palladium powder: gray-black powder.Micron-sized palladium powder, scaly, amorphous, and spherical.the loose packing density of scaly palladium powder was 0.67 ~ 0.95g/cm3.the shaking density is 1.6 ~ 2.00g/cm3.Average particle size is 0.35 ~ 0.48 m, specific surface area is 3.3 ~ 5.2m2/g.Stable electrical properties, high hydrogen adsorption capacity.Its powder in high temperature, open fire can burn.React with formic acid or sodium tetrahydroborate to give off hydrogen.It reacts violently with isopropanol. Heated to 800℃ in the air, the formation of dim and dull oxide film, higher than this temperature decomposition.It can absorb many kinds of gases, especially H2.Resistant to hydrofluoric, phosphoric, hydrochloric and sulfuric acids at room temperature.Soluble in aqua aqua, hot HNO3 and H2SO4.Slightly soluble in hydrochloric acid. |
Palladium purposes
1.It is mainly used for making catalysts, dental materials, watches and surgical instruments
2.Used for electric instruments, precision alloy, etc
3.Electrical instruments, chemical industry and manufacturing of precision alloys and other industrial applications.
4.Widely used in hydrogen purification plants, palladium silver gold nickel alloy tube or membrane made of palladium bundle (membrane) from the gas separation of hydrogen can improve the purity of hydrogen to nine nine.Palladium-silver alloy can be used as precision resistance, low contact resistance, wear resistance, corrosion resistance, good stability, also used in the manufacture of electrical contact materials.Palladium silver paste is used in thick film circuit manufacturing.
5.Used in the production of pharmaceutical intermediates such as aniline and succinic acid, including:
(1) Alkynes hydrogenate to alkane
(2) Aromatic aldehydes hydrogenate to alcohols
(3) Decarbonylation of aromatic ketones
(4) Hydrogenation of aromatic ketones to alcohols
(5) Aromatic ketone reduction to hydrocarbon
(6) Reduction of aromatic nitrile to amine
(7) Dehalation of chlorinated aromatic hydrocarbons
(8) Aromatic nitrocompounds into amines
(9) Reduce pyridine to piperidine
(10 )Reduce furan
6.Mainly used in electronic industry thick film paste, inside and outside electrode material of multilayer ceramic capacitor.
7.Mainly used in electronic industry thick film paste, inside and outside electrode material of multilayer ceramic capacitor.Used for ICP-AES, AAS, AFS, ICP-MS, ion chromatography, etc.Standard solution for titration analysis.
Palladium role
Palladium carbon is a kind of catalyst, which is made by loading metal palladium powder on activated carbon. Its main function is the catalytic hydrogenation of unsaturated hydrocarbon or CO.It has the characteristics of high hydrogenation reducibility, good selectivity, stable performance, small feeding ratio, repeated application and easy recovery.
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