Mineral Species sorted by the element I Iodine (original) (raw)

Iodine (I) Element Properties

Atomic Mass 126.90447
Atomic Number 53
Name Origins Greek, iodes = "violet."
Year Discovered 1811
Discovery Credits Discovered by B. Courtois at Paris, France.
Remarks Black, shiny non-metal solid, I2. Sublimes easily. Used in disinfection, pharmaceuticals, food supplements, dyes, catalysts and photography.Diagnostic tests: Iodine salts (along with F, Cl, and Br) will give a blue color to flames when heated on a copper disk. Treatment of the salt with concentrated H2SO4 acid will effervesce with the evolution of a violet, sharp smelling gas (l2). Iodine is sometimes found associated with chlorine or bromine so a precipitate with AgNO3 solution is white (AgCl), cream (AgBr), or yellow (AgI) depending on which anion predominates. The precipitate is soluble in NH4OH.
References Emsley, J., 1991; THE ELEMENTS : Sec. Ed., Clarendon Press, Oxford, 251 p.
See Also WebElements,ChemiCool

Naturally Occurring Isotopes

Symbol Isotope Mass Isotope Nuclide Number Isotope Number Natural Abundance Half-life Half-life Units Decay Mode Decay Mode MeV Decay Mode %
I 126.904473 127 53 100.0000% Stable

Mineral Species sorted by the element I (Iodine )

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%I Mineral Name Chemical Formula MW
66.63%I Marshite CuI 190.45
65.10%I Lautarite Ca(IO3)2 389.88
62.22%I Bruggenite Ca(IO3)2•(H2O) 407.90
59.67%I Bellingerite Cu++3(IO3)6•2(H2O) 1,276.08
56.73%I Miersite (Ag,Cu)I 223.69
55.86%I Coccinite ! Hg++I2(?) 454.40
54.05%I Iodargyrite AgI 234.77
49.68%I Salesite Cu(IO3)(OH) 255.46
49.20%I Tocornalite (Ag,Hg)I?) 257.95
46.49%I Dietzeite Ca2(IO3)2(CrO4) 545.96
44.79%I George-ericksenite ! Na6CaMg(IO3)6(CrO4)2•12(H2O) 1,699.91
38.75%I Moschelite Hg+2I2 654.99
36.33%I Fuenzalidaite K6(Na,K)4Na6Mg10(SO4)12(IO3)12•12(H2O) 4,191.42
34.31%I Carlosruizite K6(Na,K)4Na6Mg10(Se++++++O4)12(IO3)12•12(H2O) 4,438.69
22.73%I Aurivilliusite ! Hg+Hg++OI 541.59
16.57%I Hectorfloresite Na9(IO3)(SO4)4 766.06
15.32%I Radtkeite Hg3S2ClI 828.26
14.24%I Schwartzembergite Pb++6(IO3)2O3Cl4 1,782.81
13.81%I Seeligerite Pb3Cl3(IO3)O 918.86
10.72%I Perroudite Hg5-xAg4+xS5-x(Cl,I,Br)4+x 1,894.37
10.35%I Tedhadleyite ! Hg++Hg+10O4I2(Cl1.16Br0.84)2 2,698.11
8.90%I Mutnovskite ! Pb2AsS3(I,Cl,Br) 670.21
7.06%I Vasilyevite ! (Hg2)++10O6I3Cl(CO3) 4,836.00
6.21%I Grechishchevite Hg3S2(Br,Cl,I)2 817.84
3.18%I Capgaronnite HgAg(Cl,Br,I)S 398.46
0.83%I Demicheleite-(Br) ! BiSBr 306.48

(* - Mineral Name Is Not IMA Approved)
(! - New Dana classification added or changed from Danas New Mineralogy)
(? - IMA Discredited Mineral Species Name)

There are 26 minerals with I in the Mineralogy Database.