SAMARIUM CHLORIDE Property

Melting point:

686 °C(lit.)

Density 

4.46 g/mL at 25 °C(lit.)

storage temp. 

under inert gas (nitrogen or Argon) at 2-8°C

form 

Powder

color 

white to yellow

Specific Gravity

4.465

Water Solubility 

Soluble in water.

Sensitive 

Hygroscopic

Crystal Structure

UCl3 type

crystal system

Six sides

Merck 

14,8347

Space group

P63/m

Lattice constant

a/nm	b/nm	c/nm	α/o	β/o	γ/o	V/nm3
0.738	0.417	0.417	90	90	120	0.197

Stability:

hygroscopic

CAS DataBase Reference

10361-82-7(CAS DataBase Reference)

EPA Substance Registry System

Samarium chloride (SmCl3) (10361-82-7)

Safety

Hazard Codes 

Xi

Risk Statements 

38

Safety Statements 

36

WGK Germany 

2

RTECS 

VP2625000

TSCA 

Yes

HS Code 

28469000

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H303May be harmfulif swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

P405Store locked up.

SAMARIUM CHLORIDE Chemical Properties,Usage,Production

Uses

Samarium Chloride has specialized uses in glass, phosphors, lasers, and thermoelectric devices. Samarium Chloride is used for the preparation of Samarium metal, which has a variety of uses, notably in magnets. Anhydrous SmCl3 is mixed with Sodium Chloride or Calcium Chloride to give a low melting point eutectic mixture. Electrolysis of this molten salt solution gives the free metal. Samarium Chloride can also be used as a starting point for the preparation of other Samarium salts.

Chemical Properties

OFF-WHITE POWDER

Uses

Samarium(III) chloride is used for the preparation of samarium metal, which has a variety of uses, notably in magnets. In laboratory Samarium(III) chloride can also be used as a starting point for the preparation of other samarium salts. It is used as infrares absorbing glass, lasers, color television phosphors, magnets, microwave filters. It is used as catalyst in cracking crude petroleum and used as an alloy with cobalt for magnets. It is used as neutron capture masers and have applications in nuclear industry.

Safety Profile

Poison by intraperitoneal and subcutaneous routes. Moderately toxic by ingestion. A skin and eye irritant. When heated to decomposition it emits toxic fumes of Cl-. See also SAMARIUM and RARE EARTHS.

Synthesis

SmCl3 is usually synthesized by the “ammonium chloride” method, which entails the initial formation of (NH4)2[SmCl5]. This compound can be prepared from common starting materials at a moderate reaction temperature of 230℃ from samarium oxide.
10NH4Cl +Sm2O3→2 (NH )4 2[SmCl5]+ 6NH3+3H2O