INTRODUCTION
Antimony's compounds were known in ancient times, It was certainly known by about 1600, but was confused with other elements, such as bismuth, tin, and lead.It's name comes from the Greek words anti monos, meaning 'not alone.'
Antimony shows the properties of a metal, but sometimes shows those of a nonmetal. It exists in several distinctly different physical forms, the most common of which is metallic in appearance. It occasionally occurs as a free element.
BASIC INFORMATIONS
- Atomic Number
- 51
- Atomic Mass
- 121.76
- Atomic radius
- 0.141
- Ionization energy
- 834
- Electronic config
- 2,8,18,18,5
- Principal Valency
- +5
- Density g/cm³
- 6.70
- Melting point °C
- 630.63
- Boiling point °C
- 1587
- Type of Element
- Metalloid
- Electronegativity
- 1.9
- Element Category
- Nitrogen Family
- Appearance
- Bluish white solid
- Block
- p-block
- Period
- 5
- Group
- 15
- No of Isotopes
- 37
- Occurrence
- Mixture form
- Abundance in ppm
- 0.20
- Year of Discovery
- N/A
EXTRACTION
It is converted to its oxide and then reduce by carbon
OXIDATION STATES
+5,+3,-3 (Amphoteric)
MAJOR SOURCE
Stibnite
EXAMPLES OF COMPOUND PRESENT
Antimony sulfide, Tartar emetic
ECONOMIC IMPORTANCE
* Red antimony sulfide is used on safety matches and in vulcanizing rubber.
* Glass of antimony, which is a mixture of antimony sulfide and oxide is used as a yellow pigment in glass and porcelain.
* Antimony trichloride is used for bronzing steel, as a mordant in dyeing, and as a caustic in medicine.
* Tartar emetic, a double tartrate of antimony and potassium which is used as a medicinal agent
