Palladium CAS#7440-05-3

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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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/m3OSHA: 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 ws, 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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