ChemicalBook Chinese  Japanese  Germany

ChemicalBook >> CAS DataBase List >> Palladium


CAS No. 7440-05-3
Chemical Name: Palladium
Synonyms: 10%Pd;Paladium;AlladiuM;PD007940;PD004700;PD005146;PD000260;PD005116;PD000202;PD007200
CBNumber: CB5854181
Molecular Formula: Pd
Formula Weight: 106.42
MOL File: 7440-05-3.mol
Palladium Property
Melting point : 1554 °C(lit.)
Boiling point : 2970 °C(lit.)
density : 1.025 g/mL at 25 °C
storage temp. : Store at RT.
form : wire
color : Silver-gray
Water Solubility : INSOLUBLE
Merck : 14,6989
Stability:: Stable. Flammable - fine powder may cause fire or explosion in air. Incompatible with ozone, sodium tetrahydroborate, sulphur, arsenic.
CAS DataBase Reference: 7440-05-3(CAS DataBase Reference)
NIST Chemistry Reference: Palladium(7440-05-3)
EPA Substance Registry System: Palladium(7440-05-3)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes : T,F,Xi
Risk Statements : 61-33-37/38-40-41-36/37/38-11
Safety Statements : 53-26-36/37/39-24/25-36-22
RIDADR : UN 3089 4.1/PG 2
WGK Germany : -
RTECS : RT3480500
TSCA : Yes
HazardClass : 4.1
PackingGroup : III
Hazardous Substances Data: 7440-05-3(Hazardous Substances Data)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H228 Flammable solid Flammable solids Category 1
Category 2
P210, P240,P241, P280, P370+P378
H252 Self-heating in large quantities; may catch fire Self-heating substances and mixtures Category 2 Warning P235+P410, P280, P407, P413, P420
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H333 May be harmful if inhaled Acute toxicity,inhalation Category 5 P304+P312
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
H360 May damage fertility or the unborn child Reproductive toxicity Category 1A, 1B Danger
H401 Toxic to aquatic life Hazardous to the aquatic environment, acute hazard Category 2 P273, P501
H402 Harmful to aquatic life Hazardous to the aquatic environment, acute hazard Category 3
H411 Toxic to aquatic life with long lasting effects Hazardous to the aquatic environment, long-term hazard Category 2
Precautionary statements:
P201 Obtain special instructions before use.
P202 Do not handle until all safety precautions have been read and understood.
P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P240 Ground/bond container and receiving equipment.
P241 Use explosion-proof electrical/ventilating/lighting/…/equipment.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P235+P410 Keep cool. Protect from sunlight.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P308+P313 IF exposed or concerned: Get medical advice/attention.
P405 Store locked up.
P420 Store away from other materials.

Palladium Chemical Properties,Usage,Production

Palladium was discovered in 1803 by W.H. Wollaston during refining and purification of- platinum metal. This new metal was found in the aqua regia extract of native platinum and was detected in solution after platinum was precipitated. It was removed as ammonium chloroplatinate. Treating this solution with mercurous cyanide precipitated a yellow palladium complex salt. The precipitate was washed and ignited to form palladium metal. Wollaston named the element palladium after the newly discovered asteroid Pallas.
Palladium in nature is always associated with other platinum group metals. Its abundance in earth's crust is estimated at 0.015 mg/kg, about three times more abundant than platinum. Palladium is used mostly in alloys and the majority of its alloys are used for electronics and telecommunications. They are contacts in electrical relays and automatic switching gear. Palladium-gold alloys are applied widely in dentistry and medicine. They are in devices for replacement of damaged bones and joints and as support in porcelain-overlay bridgework. Palladium alloys are used in decoration and jewelry as a substitute for gold. They are used in gems, watch cases and brooches.
One of the most important applications of palladium is to catalyze hydrogenation, dehydrogenation, and petroleum cracking. Such reactions are widely employed in organic syntheses and petroleum refining. Palladium and platinum are installed in catalytic converters in automobiles to cut down the emission of unsaturated hydrocarbon gasses.
Chemical Properties
It is a silver-white metal (face-centered cubic crystal).  Soluble in aqua regia, hot nitric acid, sulfuric acid, slightly soluble in hydrochloric acid, insoluble in cold water and hot water.
Chemical Properties
Grey Powder
Palladium is a transition metal element used in catalytic reactions involving processes such as hydrogenation. Lindlar Catalyst
  • For the production of catalysts, such as palladium asbestos, sponge and palladium;
  • Making electrical instrumentation;
  • For the precise alloy production, such as dental materials, watches and surgical instruments;
It can be made from the ore with dry process in Industrial production; can also copper, nickel sulfide ore preparation of copper, nickel production process as a by-product as raw materials, made by wet smelting. It can also be obtained from the wet process with the byproduct of copper, nickel production from the copper sulfide ore or nickel sulfide ore.
The wet method is using the residue of extracted nickel and copper as raw materials, adding aqua for extraction, filtration, adding ammonia and hydrochloric acid to react, thus forming the precipitation of ammonium chloropalladate. After refining, filtration, reduction of ammonium chloropalladate with hydrogen 99.95% finished product of palladium can be obtained.
ChEBI: Chemical element (nickel group element atom) with atomic number 46.
Among the platinum group metals, palladium is the least noble metal, exhibiting greater reactivity than other metals of the group. The metal forms mostly bivalent compounds, although a small number of tetravalent and a fewer trivalent compounds are known. Palladium exhibits a strong tendency to form complexes, most of which are four-coordinated square planar complexes of the metal in +2 oxidation state. When heated in air or oxygen above 350°C, palladium forms a black oxide, PdO coated over its surface. On further heating to over 790°C, the oxide decomposes back to the metal. Palladium dissolves more oxygen in molten state than in solid form.
Palladium reacts with fluorine and chlorine at 500°C forming its halides, the black PdF3 and the red deliquescent solid PdCl2.
Palladium is attacked by concentrated nitric acid, particularly in the presence of nitrogen oxides. The reaction is slow in dilute nitric acid. Finely divided palladium metal reacts with warm nitric acid forming palladium(II) nitrate, Pd(NO3)2. Hydrochloric acid has no affect on the metal. Reaction with boiling sulfuric acid yields palladium sulfate, PdSO4, and sulfur dioxide.
Palladium readily dissolves in aqua regia forming chloropalladic acid, H2PdCl6. Evaporation of this solution yields palladium(II) chloride, PdCl2.
Palladium absorbs hydrogen over 800 times its own volume over a range of temperature. By doing so, the metal swells, becoming brittle and cracked. Such absorption of hydrogen decreases the electrical conductivity of the metal. Also, such absorption activates molecular hydrogen, dissociating it to atomic hydrogen.
Palladium Preparation Products And Raw materials
Raw materials
Nitrohydrochloric acid Ammonium hydroxide Sulfur dioxide Chlorine Ammonium chloride Sodium chlorate Sulfuric acid
Preparation Products
3-(3,4,5-TRIMETHOXYPHENYL)PROPIONIC ACID DIMETHYL METHYLSUCCINATE 6-Hydroxyindazole Pyridazine, 3-bromo- (9CI) Pyridazin-3-amine 1-METHYL-PIPERIDINE-4-CARBOXYLIC ACID Zalcitabine 2-AMINO-3,5-DICYANOPYRIDINE 3-PYRIDIN-2-YL-PROPIONIC ACID H2SO4 4-BROMO-2-FLUOROBENZYLAMINE 6-Aminoquinoxaline 3-Amino-4,6-dimethylpyridine 7-Hydroxyindole 5-AMINOINDOLE HYDROCHLORIDE 6-HYDROXYMETHYLINDOLE 4-Aminotetrahydropyran 1-BOC-4-HYDROXY-4-(HYDROXYMETHYL)-PIPERIDINE N-(4,6-DIMETHYLPYRIMIDIN-2-YL)BENZENE-1,4-DIAMINE 1,2,3-BENZOTHIADIAZOLE-5-CARBOXYLIC ACID (3R)-(-)-3-Aminopyrrolidine dihydrochloride 1-(4-AMINO-2,6-DICHLOROPHENOXY)-3-MORPHOLINOPROPAN-2-OL 2,3-Diaminopyridine 2-Aminophenylboronic acid 3(2H)-Pyridazinone 2-(4-AMINOPHENYL)ETHYL AMINE 2HCL 1H-INDAZOL-7-AMINE 5-AMINOINDAZOLE TETRAHYDRO-3-FUROIC ACID N-METHYL-2-PIPERAZIN-1-YLACETAMIDE 2-Quinolinemethanamine Homovanillic acid 4-Deoxypyridoxine hydrochloride (3R)-(+)-3-(DIMETHYLAMINO)PYRROLIDINE 5-Hydroxyindole cis-1,2-Diaminocyclohexane 2-ACETAMIDO-5-AMINO-4-PICOLINE 4-(2-MORPHOLINOETHOXY)-3,5-DICHLOROBENZENAMINE 4-(2-(N-PHENYL-N-ETHYLAMINO)ETHOXY)-3,5-DICHLOROBENZENAMINE (3S)-(+)-3-Aminopyrrolidine dihydrochloride 3-AMINO-2,6-DIMETHYLPYRIDINE
Palladium Suppliers      Global( 249)Suppliers     
Supplier Tel Fax Email Country ProdList Advantage
Capot Chemical Co.,Ltd. +86 (0)571-855 867 18
+86 (0)571-858 647 95 China 19953 60
Henan DaKen Chemical CO.,LTD. +86-371-55541817 CHINA 2887 58
Adamas Reagent, Ltd. 400-600-9262 China 14021 59
Zhengzhou ALFA Chemical Co., Ltd. 0371-53732842 15981811963
0371-86239377 China 960 56
Shanghai Macklin Biochemical Co.,Ltd. 15221275939
021-51821727 China 13254 55
Chengdu JuHui Chemical Technology Co., Ltd. 028-85062459 028-64353063 18782929954 QQ:401639705
028-85062459 China 1754 55
Chengdu RunZeBenTu Chemical Co., Ltd 028-88469284 18000562381
028-88469284 China 10015 56
Meryer (Shanghai) Chemical Technology Co., Ltd. +86-(0)21-61259100(Shanghai) +86-(0)755-86170099(ShenZhen) +86-(0)10-62670440(Beijing)
+86-(0)21-61259102(Shanghai) +86-(0)755-86170066(ShenZhen) +86-(0)10-88580358(Beijing) China 40403 62
Energy Chemical 021-58432009 / 400-005-6266
021-58436166-800 China 44197 61
Shanghai Boyle Chemical Co., Ltd. 86-21-50180596
86-21-57758967 China 2836 55
7440-05-3(Palladium)Related Search:
palladiumoncarbon(10%)(50%wetwithwaterforsafety) PALLADIUM PALLADIUM ON CALCIUM CARBONATE PALLADIUM, ON CALCIUM CARBONATE, LEAD POISONED, REDUCED PALLADIUM, ON CALCIUM CARBONATE, UNREDUCED PALLADIUM, ON SILICA POWDER, REDUCED PALLADIUM ON SILICA, REDUCED PALLADIUM CACO3 CATALYST PALLADIUM CALCIUM CARBONATE PALLADIUM CALCIUM CARBONATE, REDUCED PALLADIUM CALCIUM CARBONATE, UNREDUCED PALLADIUM ASBESTOS 7440-05-3 LINDLAR CATALYST LINDLAR CATALYST, REDUCED ESCAT 1351 ESCAT 1371 ESCAT 1391 ESCAT TM 1351 ESCAT TM 1371 ESCAT TM 1391 Palladium (0.5%) Palladium (3%) Palladium 5% auf Al2O3 Palladium 5% auf BaSO4 Palladium 5% auf CaCO3 palladium coating quality balzers Palladium foil Palladium on alumina powder Palladium rod Palladium shot Palladium sponge (99.9%) Palladium sponge (99.95%) Palladium wire (99.9%) Palladium, 1% Palladium, 5 wt. % Palladium, 5% Palladium1 Palladium2 Palladium3 Palladium4 Palladium6 PalladiumaufAlO PalladiumaufBaSO PalladiumaufCaCO Palladiumblacksurfaceareasqmg PalladiumfoilNmmthickcagxmm Palladiumonactivatedcarbonpowder Palladiumonaluminaxpellets Palladiumonbariumcarbonatereducedpowder Palladiumonbariumsulfateunreducedpowder PalladiumoncalciumcarbonateleadpoisonedLINDLARCATALYST PalladiumonpolyethylenimineSiOROYERPdCATALYSTmesh Palladiumpowdermesh PalladiumpowderNmesh PalladiumrodNmmdiacagmm PalladiumshotNbluegraygranmmanddown PalladiumspongeNbluegraypowder
Copyright 2017 © ChemicalBook. All rights reserved