GROUP VIIIB LATE TRANSITION METALS

- Livy

Iron

this element is strong, hard, or unyielding metal

Iron

this element is exists in +2 and +3 capacities forming ferrous and ferric compounds

Iron

this element is a essential trace element that is present in hemoglobin, myoglobin & cytochrome.

Iron

this element is synergistic with Vitamin C

Ferrous salt

Iron; green in hydrated state

Ferric salt

Iron; yellow to brown in hydrated state

No reaction

Reaction of Fe²⁺ with KCNS

Reaction of Fe³⁺ with KCNS

Formation of blood red solution (Fe(CNS)₃)

Reaction of Fe²⁺ with K₃Fe(CN)₆

Formation of Turnbull's blue (Fe₃[Fe(CN)₆]₂)

Reaction of Fe³⁺ with K₃Fe(CN)₆

Formation of Fe[Fe(CN)₆] or Fe[Fe(CN)₆]³⁻ (brown solution)

Reaction of Fe²⁺ with K₄Fe(CN)₆

Formation of white precipitate (Fe₂[Fe(CN)₆])

Reaction of Fe³⁺ with K₄Fe(CN)₆

Formation of Prussian blue/Berlin blue (Fe₄[Fe(CN)₆]₃)

Cobalt

this element is pinkish white metal

Cobalt

this element is essential in the development of erythrocytes & hemoglobin

Cobalt

a metal present in Vit. B12 (cyanocobalamine)

Cobalt

this element is used in the manufacturer of beer

hydrated

a cobalt salt; pinkish in color

anhydrous

a cobalt salt; blue in color

Cobalt (II) oxide + Aluminum oxide

this is a compound of cobalt; also called Thernard’s blue or Dresden blue

Co(NO3)2·6H2O

this is a compound of cobalt; used as an antidote for HCN poisoning

Cobaltous chloride (Lover’s ink, sympathetic ink)

this is a compound of cobalt; used as an indicator in silica gel beads

Reaction of Co²⁺ with NH₄OH (ammonium hydroxide)

an identification test of cobalt; forms a pink precipitate of Co(OH)₂, which dissolves in excess reagent forming yellow solution of Co(NH₃)₆²⁺

Reaction of Co²⁺ with KNO₂ and HAc (acetic acid)

an identification test of cobalt; forms yellow precipitate of K₃[Co(NO₂)₆]

Platinum

this element is silver-colored metal

Platinum

this element is a noble metal – low oxidation potential and low reactivity

Platinum

this element is used in the preparations of crucibles, dishes, and platinum wires

Platinum

this element is an expensive jewelry than gold

Platinum

this element is used as a catalyst

Nickel

this element is also called “Old Nick’s copper”

Nickel

this element is found in fossil fuel combustion

Nickel

this element is a metal that is present in fake jewelries

Nickel ion

Nickel; produces a green colored solution

Reaction of Ni²⁺ with NH₄OH (ammonium hydroxide)

an identification test (Ni2+); Forms green precipitate of Ni(OH)₂, which dissolves in excess NH₄OH forming blue solution of Ni(NH₃)₆²⁺

Reaction of Ni²⁺ with Dimethylglyoxime

an identification test (Ni2+); Forms red-rose precipitate of Ni dimethylglyoxime

Palladium

this element is a catalyst

Osmium

this element is known for being the heaviest and densest metal

Osmic acid & Osmium Tetroxide

Osmium; it is used in staining microorganism