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- Illuminated manuscript (5973 bytes)
32: ...ed colors such as [[cochineal]] and [[kermes]]; [[iron oxide]]-rich earth compounds
35: ...[orpiment]] (As<sub>2</sub>S<sub>3</sub>, Arsenic Sulfide)
47: ...oal]], or burnt bones or [[ivory]]; [[sepia]]; [[iron gall]] - Photosynthesis (9830 bytes)
25: ... are returned to the chlorophyll. In photosystem II, they are used to drive the reaction
33: ...anobacteria]], they use reducing agents such as [[sulfide]] or [[hydrogen]], so no oxygen is produced.
54: ... the presence of unnatural reducing agents like [[iron oxalate]], [[ferricyanide]] or [[benzoquinone]] a... - Arsenic (12497 bytes)
172: ... and [[Tibet]], are thought to have geological environments similarly conducive to generation of high-ar...
176: ... on heating, the arsenic sublimes leaving ferrous sulfide. Other arsenic minerals include [[realgar]], [[mi...
178: ...mbined with [[silver]], [[cobalt]], [[nickel]], [[iron]], [[antimony]], or [[sulfur]].
180: ...ic also occurs in various organic forms in the environment. Inorganic arsenic and its compounds, upon en...
186: ...'''''[[toxic]]''''' and '''''dangerous for the environment''''' in the [[European Union]] under [[direct... - Cadmium (10755 bytes)
180: ...h [[cadmium sulfide]] being the most common. This sulfide is used as a [[Cadmium pigments|yellow pigment]].
181: ...Used in some [[semiconductor]]s such as [[cadmium sulfide]], [[cadmium selenide]], and [[cadmium telluride]...
194: ...ources, mainly from dust generated by recycling [[iron]] and [[steel]] scrap. Production in the [[Unite... - Calcium (9166 bytes)
19: ... table block|Block]]</td><td>[[group 2 element|2 (IIA)]], [[period 4 element|4]], [[atomic orbital|s]]...
115: ...izer, desulfurizer, or decarburizer for various [[Iron|ferrous]] and nonferrous [[alloy]]s.
122: ...re [[calcium nitrate|nitrate]], [[calcium sulfide|sulfide]], [[calcium chloride|chloride]], [[calcium carbi... - Copper (13595 bytes)
155: ... ''Limulus polyphemus'' uses copper rather than [[iron]] for oxygen transport.
177: ...tate, Cu<sup>+1</sup>; and the more stable copper(II) state, Cu<sup>+2</sup>, which forms lovely blue ...
179: ...-clad roofs or domes on some buildings. [[Copper(II) sulfate]] forms a blue crystalline penta[[hydrat...
181: There are two stable copper oxides, [[copper(II) oxide]] (CuO) and [[copper(I) oxide]] (Cu<sub>2<...
183: ...chloride]], [[copper(II) chloride]], [[copper(II) sulfide]]. - Gadolinium (9860 bytes)
170: ...ium improving the workability and resistance of [[iron]], [[chromium]] and related [[alloy]]s to high te...
175: ...le Lecoq de Boisbaudran]] separated [[gadolinium(III)_oxide|gadolinia]], the [[oxide]] of Gadolinium, ...
189: ** [[gadolinium(III) fluoride|GdF<sub>3</sub>]]
191: ** [[gadolinium(III) chloride|GdCl<sub>3</sub>]]
193: ** [[gadolinium(III) bromide|GBr<sub>3</sub>]] - Gold (24329 bytes)
158: ... gold. Adding [[copper]] yields a redder metal, [[iron]] green, [[aluminium]] purple, [[platinum]] metal...
162: ...de +1 (gold(I) or aurous compounds) and +3 (gold(III) or auric compounds). Gold ions in solution are r...
174: *[[Gold(III) chloride]] is used as a [[catalyst]] in [[organi...
224: ...s [[vein]]s and sulfide minerals. The most common sulfide associations are [[pyrite]], [[chalcopyrite]], [[...
228: ... [[metamorphism]], which concentrates the gold in sulfide minerals or quartz. There are several primary dep... - Aluminium (26079 bytes)
55: ...luminium exceeds that of any other metal except [[iron]], and it is important in virtually all segments ...
95: ...luable than [[gold]] (It is said that [[Napoleon III of France]] had a set of aluminium plates reserve...
101: ...uxite]], which is red since it contains 30 to 40% iron oxide. This is done using the so-called [[Bayer p...
145: ...lum�o'', Spanish ''aluminio'' and Finnish ''alumiini''. (The use of these words in these other langu...
165: ...ub>3</sub>, may be prepared by passing [[hydrogen sulfide]] over aluminium powder. It is [[polymorphic]]. - Mercury (element) (24761 bytes)
23: | [[group 12 element|12 (IIB)]], [[period 6 element|6]], [[d-block|d]]
182: ...[gold]], [[aluminium]], and [[silver]], but not [[iron]]. [[Tellurium]] forms an alloy also, but it reac...
218: ...cber/vaccine/thimerosal.htm FDA report]). Mercury(II) chloride was a disinfectant for doctors, patient...
229: *[[Mercury(II) chloride]] (which is very [[corrosion|corrosive]...
231: *[[Mercury(II) sulfide]] (AKA [[vermilion]] which is a high-grade [[pain... - Nickel (13955 bytes)
169: ...]] that takes on a high polish. It belongs to the iron group, and is hard, malleable, and ductile. It oc...
171: ...d by [[cobalt]], both being found in [[meteor]]ic iron. It is chiefly valuable for the [[alloy]]s it for...
201: ... [[hydrogenase]]s contain nickel in addition to [[iron-sulfur cluster]]s. Nickel centers are a common el...
210: ...2</sub>O<sub>5</sub>(OH). The second are magmatic sulfide deposits where the principal ore mineral is [[pen...
217: ...etallurgical]] or hydrometallurgical techniques. Sulfide mineral concentrates are produced by applying the... - Ruthenium (10241 bytes)
7: | rowspan="3" valign="center" | [[Iron|Fe]]<br>
166: ...uthenium is also a versatile catalyst: [[Hydrogen sulfide]] can be split by light by using an aqueous suspe... - Silver (15157 bytes)
142: ...rnish when it is exposed to [[ozone]], [[hydrogen sulfide]], or air with [[sulfur]] in it. The most common...
155: ...t]]s are used in an atmosphere rich in [[hydrogen sulfide]].
174: ...'s abundance, in contrast to the relative lack of iron in [[Peru]].
193: ...o Ag-107 with a half-life of 6.5 million years. [[Iron]] [[meteorite]]s are the only objects with a high...
194: ...ggest that the coalescence and differentiation of iron-cored small [[planet]]s may have occurred 10 mill... - Sulfur (18059 bytes)
45: ...ure, it can be found as the pure element or as [[sulfide]] and [[sulfate]] minerals. It is an essential e...
48: ...in water but [[solubility|soluble]] in [[carbon disulfide]] and other nonpolar solvents. Common [[oxidation...
62: ...te]] [[ion]]. Inorganic sulfur forms a part of [[iron-sulfur cluster]]s, and sulfur is the bridging lig...
64: == Environmental Impact ==
65: ...sulting in substantial damage to the [[natural environment]] and [[chemical weathering]] of statues and ... - Tin (12094 bytes)
189: Tin bonds readily to [[iron]], and has been used for coating [[lead]] or zinc...
211: ...ll quantities of tin are recovered from complex [[sulfide]]s such as [[stanite]], [[cylindrite]], [[frankei... - Zinc (12445 bytes)
163: ... fourth most common metal in use, trailing only [[iron]], [[aluminium]], and [[copper]] in annual produc...
172: * [[Zinc sulfide]] is used in [[luminescence|luminescent]] pigment...
191: Before the discovery of the [[zinc sulfide]] [[flotation]] technique, [[calamine]] was the m...
207: ... heavily mined ores tend to contain roughly 10% [[iron]] as well as 40-50% zinc. Minerals from which zin...
211: ...produced using [[extractive metallurgy]]. [[Zinc sulfide]] ([[sphalerite]]) minerals are concentrated usin... - Salt (4921 bytes)
14: ..., and even metallic and lustrous ([[pyrite|iron disulfide]]).
19: [[red]] ([[Cinnabar|mercury sulfide]]),
21: [[blue]] ([[Copper (II) sulfate|copper sulfate]] pentahydrate, [[Prussia...
39: * [[iron]] Fe<sup>2+</sup> and Fe<sup>3+</sup> - Mineral (10947 bytes)
11: ...ample, [[pyrite]] and [[marcasite]] are both iron sulfide. Similarly, some minerals have different chemical...
41: ...n of ions such as [[aluminium]], [[magnesium]], [[iron]], and [[calcium]]. Some important rock-forming ...
44: ...] (magnesium/calcium carbonate) and [[siderite]] (iron carbonate). Carbonates are commonly deposited in...
47: ...s as secondary [[oxidation]] products of original sulfide minerals. Common sulfates include [[anhydrite]] (...
53: ...include [[hematite]] (iron oxide), [[magnetite]] (iron oxide), [[chromite]] (chromium oxide), [[spinel]]...
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