MAGNESIUM SULFIDE Chemical Properties

Melting point:

>2000°C (dec.)

Density 

2,84 g/cm³

solubility 

reacts with H2O

form 

red-brown cubic crystals

color 

red-brown cubic crystals, crystalline

Water Solubility 

decomposes in H2O [HAW93]

EPA Substance Registry System

Magnesium sulfide (MgS) (12032-36-9)

Safety Information

Risk Statements 

32

Safety Statements 

7/8

MAGNESIUM SULFIDE Usage And Synthesis

Chemical Properties

Red-brown, crystalline solid.decomposes in water.

Chemical Properties

Magnesium Sulfide is a red-brown, crystalline solid, decomposes above 2000 C, decomposes in water.

Physical properties

MgS is a white crystalline material but is often encountered in an impure form that is a brown noncrystalline powder.
The chemical properties of MgS resemble those of related ionic sulfides such as those of Na, Ba, and Ca.
Magnesium Sulfide reacts with oxygen to form the corresponding sulfate, magnesium sulfate. MgS reacts with water to give hydrogen sulfide and magnesium hydroxide.

Uses

Magnesium Sulfide is the source of hydrogen sulfide, laboratory reagent.

Preparation

Magnesium Sulfide can be prepared by the direct reaction of the elements, calcined in an inert atmosphere, at a 1:1.1 molecular ratio:
Mg＋ S＋ heat→MgS
MgS also forms by the reaction of hydrogen sulfide gas with soluble magnesium salts in solution.
Aside from being a component of some slags, MgS is a rare nonterrestial mineral “niningerite” detected in some meteorites. Magnesium sulfide is available commercially from a number of suppliers.

MAGNESIUM SULFIDE(12032-36-9)Related Product Information

• FUMING SULFURIC ACID
• Hydrogen Sulfide
• Manganese sulfide
• BARIUM SULFIDE
• Lithium sulfide
• Strontium sulfide
• CALCIUM SULFIDE
• Zinc sulfide
• niobium arsenide
• GERMANIUM (II) SULFIDE
• TUNGSTEN SULFIDE
• Thiosulfuric acid
• pyrosulfuric acid
• SulphurDyes
• Radium Sulfide
• BERYLLIUM SULFIDE
• Beryllium Sulfite
• MAGNESIUM SULFIDE