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Palladium CAS#7440-05-3

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Chemical Name：Palladium CAS#7440-05-3

CAS No.:7440-05-3

Molecular Formula:Pd

Molecular weight:106.42

Sample: Available

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Product Details

Products Description of Palladium CAS#7440-05-3

Palladium is a transition element of Group III (nickel group) and light platinum metal in the periodic table. It is a silvery-white metal that is moderately hard, moderately forgeable, and ductile. Palladium is an intermediate element in Group 10 of transition elements (periods 4, 5, and 6). Many of its properties are similar to those of nickel, which is above it, and platinum, which is below it, in this group. Palladium is a soft, silvery-white metal that has chemical and physical properties very similar to those of platinum. It is ductile and malleable, meaning it can be worked into thin sheets and stretched through a die into very fine wire. Palladium is soluble in aqua regia, hot nitric acid, sulfuric acid, slightly soluble in hydrochloric acid, and insoluble in cold and hot water.

Palladium Chemical Properties

Melting point	1554 °C(lit.)
Boiling point	2970 °C(lit.)
density	1.025 g/mL at 25 °C
storage temp.	no restrictions.
solubility	soluble in aqua regia
form	wire
color	Silver-gray
Specific Gravity	12.03
Odor	Odorless
resistivity	9.96 μΩ-cm, 20°C
Water Solubility	INSOLUBLE
Merck	14,6989
Exposure limits	ACGIH: TWA 1 mg/m3 OSHA: TWA 15 mg/m3; TWA 5 mg/m3
Stability:	Stable. Flammable - fine powder may cause fire or explosion in air. Incompatible with ozone, sodium tetrahydroborate, sulphur, arsenic.
InChIKey	KDLHZDBZIXYQEI-UHFFFAOYSA-N
CAS DataBase Reference	7440-05-3(CAS DataBase Reference)
NIST Chemistry Reference	Palladium(7440-05-3)
EPA Substance Registry System	Palladium (7440-05-3)

Safety Information

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
Autoignition Temperature	>1120 °F
TSCA	Yes
HazardClass	4.1
PackingGroup	III
HS Code	28439000
Hazardous Substances Data	7440-05-3(Hazardous Substances Data)
Toxicity	LD50 oral (rat) 200 mg/kg (palladium chloride) LC50 intratracheal (rat) 6 mg/kg (palladium chloride)

Product Application of Palladium CAS#7440-05-3

Palladium is a soft, white metal found in copper and nickel ores. Chlorides of this element were used in printing after the turn of the century and are also used in combination with platinum for printing.

Palladium is a transition metal element used in catalytic reactions involving processes such as hydrogenation. Lindlar catalyst. One of the most important applications of palladium is the catalytic hydrogenation, dehydrogenation and cracking of petroleum. Such reactions are widely used in organic synthesis and petroleum refining.

Palladium and platinum are installed in catalytic converters in automobiles to reduce the emission of unsaturated hydrocarbon gases. Palladium is used to make surgical instruments, electrical contacts, clock springs, high-quality spark plugs and specialty wires, and as "white gold" in jewelry.

Palladium-gold alloys are widely used in dentistry and medicine. They are used to replace damaged bones and joints and as supports in bridges covered with porcelain. Palladium alloys are used in decoration and jewelry as a substitute for gold. They are used in gemstones, watch cases and brooches. Palladium has the ability to absorb large amounts of hydrogen, making it an excellent catalyst for chemical reactions as well as catalytic converters in internal combustion engines. Palladium has the ability to absorb carbon and is used to make CO monitoring devices for carbon monoxide.

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