topicIndexC1

School Science Lessons
Chemistry index and minerals C1
2012-05-20 SP
Please send comments to: J.Elfick@uq.edu.au

Table of contents
| 1,2,3 | A | B | C | DEF | GH | IJK | L | M | N | O | P | QR | S | T to Z |

Index, items C1
Chloric acid, HClO₃Chlorophyll
Chromium, Cr
Chromium compounds
Cinnamic acid, C₉H₁₀O₂Citric acid, C₆H₈O₇Coal
Cobalt, Co
Cobalt compounds
Co, Cobalt properties: 7.2.2.14
Properties of cobalt salts 12.6.1
Coins
Coloured ions
Combustion
Common ion effect
Composition of
Compounds
Contact explosives
Copper
Copper compounds
Cresol red
Crystals
Cyanide, CN
Cyclohexane, C₆H₁₂

Chloric acid, HClO₃, chloric (V) acid, Harmful if ingested, explosive with organic compounds, Not permitted in schools
Chloric acid, dangerous powerful oxidizing agent. Conc. sulfuric acid + (potassium chlorate + sucrose) --> chloric acid
Chloric acid, HClO_3,chloric (V) acid, or any of the oxyacids of chlorine, including the following:
Chloro-compounds, organic
Chlorous acid, HClO₂, chloric (III) acid
Hypochlorous acid, HOCl, chloric (I) acid
Perchloric acid, HClO₄, chloric (VII) acid

Chlorophyll a and chlorophyll b: 16.3.5.2.3
Carbon dioxide and photosynthesis: 3.36
Chlorophyll is necessary for photosynthesis, variegated leaf: 6.5.5
Chlorophyta, Phylum Chlorophyta, green algae: 9.0.2
Chloroplasts in cells of water weeds: 6.5.15.5
Chloroplasts, Spirogyra, Zygnema, Closterium: 6.5.4
Colours, food colours, food additives E140 Chlorophylls and chlorophyllins (used to dye oils and wax in medicines and cosmetics)
Photosynthesis: 9.8.0
Separate pigments from green leaves with paper chromatography: 3.24
Tests for starch, iodine tests for starch: 9.132

Chromium, Cr, metal, AAS Standard
Chromium, Cr, Table of the elements
Chromium (VI) oxide is not permitted in schools.
Chromium properties: 7.2.2.13
Chromium plating, electroplating: 15.1.3
Reactions of chromium and chromium compounds: 12.5.1
Tests for chromium: 12.11.3.10.9
Toxicity: 3.6.5

Chromium compounds
Chromates
Chrome alum, K₂SO₄.Cr₂(SO₄)₃.24H₂O, Prepare chrome alum: 12.14.4
Chrome alum, Alums: 7.2.2.1a
Chrome iron ore, FeCr₂O₄, chromite
Chrome red, PbO.PbCrO₄, basic lead chromate
Chrome yellow, PbCrO₄, lead chromate pigment
Chromic (III) sulfate (hydrate)
Chromic acetate, chromium (III) acetate, hydrated, chromium (III) ethanoate, chromic acetate, chromium acetate
Chromic acid, H₂CrO₄, Highly toxic if ingested, Not permitted in schools, Ionization reaction: 12.5.7
Chromic salts are green-violet chromium salts in the (III) or (VI) oxidation state.
Chromic acid, (conc. sulfuric acid + dichromate --> glass cleaning solution), Do not prepare or use in a school science laboratory!
Chromic chloride
Chromic nitrate, chromic nitrate, hydrated
Chromic potassium sulfate, potassium chromium sulfate, K₂SO₄.Cr₂(SO₄)₃.24H₂O, an alum, mordant
Chromic sulfate, chromium (III) sulfate
Chromite, chrome iron ore, iron chromium oxide, chromium ore, in peridodites, serpentines, Fe₂Cr₂O₄
Chromium (II), Cr²⁺, strong reducing agent, blue salts in aqueous solution
Chromium (II) ethanoate, chromium (III) acetate
Chromium (II) oxide, CrO, insoluble black powder
Chromium (III) acetate, chromium (III) ethanoate, chromic acetate, chromium acetate, Harmful if ingested
Chromium (III) chloride 6H₂O
Chromium (III), Cr³⁺, green salts in aqueous solution
Chromium (III) nitrate
Chromium (III) oxide, Cr₂O₃, Catalytic oxidation of ammonia with chromium (III) oxide catalyst: 13.6.6.1
Chromium (III) oxide, chromium sesquioxide, chromic oxide, amphoteric oxide, chrome green,
(C.I. pigment Green 17), Highly toxic if ingested
Chromium (III) sulfate, chromium sulfate, chromic sulfate, Harmful if ingested
Chromium (IV) oxide, CrO₂, insoluble black powder
Chromium (VI) oxide, CrO₃, chromium trioxide, chromic anhydride, Highly toxic if ingested, carcinogenic, Not permitted in schools
Chromium (VI) oxide and glass cleaning solution, Prepare chromium trioxide, CrO_3:12.5.2
Chromium (VI) oxide, chromic anhydride, strong oxidizing agent
Chromium alum, chrome alum
Chromium chromate
Chromyl chloride, chromium oxychloride, Highly toxic by all routes
Chromium hydroxide, Properties of chrome alum: 12.14.4.1 (See 4.)
Chromium potassium sulfate dodecahydrate, K₂SO₄.Cr₂SO₄.24H₂O, CrK(SO₄)₂.12H₂O,
Chromium potassium sulfate dodecahydrate, potassium chromium (III) sulfate dodecahydrate
Chromium potassium sulfate, chromium (III) potassium sulfate, chrome alum, chromic potassium sulfate
Chromium salts, Safety: 3.6.5
Chromium sulfate, chromium (III) sulfate
Chromous salts are chromium salts in the (II) oxidation state, form blue solutions
Chromyl chloride, CrO₂Cl₂, chromium oxychloride, strong red oxidizing liquid, Not permitted in schools
Chromyl chloride, Solution < 1%, Not hazardous
Reactions of chromium and chromium compounds: 12.5.1

Chromates, -CrO₄^2-, usually yellow salts, dichromates - Cr₂O₇^-, usually orange-red salts
Chromate, Movement of copper and chromate ions: 3.89
Chromates, CrO₄^2-, Reactions of chromates: 12.5.4
Chromates, Tests for chromates: 12.11.5.9
Barium chromate
Dichromates
Oxidize chromium compounds to chromates, CrO₄^2-: 12.5.5
Reactions of chromium and chromium compounds: 12.5.1
Reactions of chromates: 12.5.4
Reactions of dichromates, Cr₂O₇^2-: 12.5.3

Dichromates, Cr₂O₇^2-, strong oxidizing agent, usually orange-red salts, e.g. potassium dichromate K₂Cr₂O₇Dichromates, hazards: 3.7.4
Dichromates, Reactions of dichromates, Cr₂O₇2^-: 12.5.3

Cinnamic acid, C₉H₁₀O_2,C₆H₅CH:CHCOOH
Cinnamic acid, 3-phenylpropenoic acid, in essential oils, cinnamon, Aloe vera, (A. barbadensis), Aloaceae
Cinnamon, inner bark for cinnamon sticks, Phenolic compounds: 16.3.2.5
Cinnamon bark oil (contains cinnamaldehyde, eugenol, benzyl benzaldehyde, pinene), in Coca Cola.
Cinnamon leaf oil (contains eugenol, cinnamaldehyde, benzyl benzoate)

Citric acid, Irritant, C₆H₈O₇, CH₂.COOH.HO.C.COOH.CH₂COOH
Citric acid (diNH₄ salt), citric acid (trisodium salt, dihydrate), citric acid monohydrate
Citric acid, Tricarboxylic acids: 16.4.1.1.2
Citric acid, buffer solution: 5.0
Citric acid cycle, Krebs cycle: 16.11.5
Citric acid solubility and temperature: 12.6.5
Citric acid with sodium carbonate solution, Exothermic reactions give out heat energy: 3.80 (See 5.)
Heat citric acid: 12.6.2
Lemon juice, 5-8% citric acid
Browning reactions of fruits and vegetables (browning of an apple): 19.3.4.2.1
Prepare citric acid crystals with lemon juice: 12.6.1
Prepare hydrogen with citric acid: 12.6.3
Prepare mayonnaise: 19.2.12
Prepare sodium citrate crystals: 12.6.4
Sodium hydrogen carbonate with citric acid, Bomb Bags: See pdf
Tricarboxylic acids, citric acid: 16.3.8.3

Coal, coal tar, Coal, solid, lumps, peat, lignite, (brown coal) bituminous coals, anthracite, coke
Aromatic amines, anilides, e.g. phenylamine: 16.3.4.0.4 (See: "Magenta")
Carbolic acid, phenol: 16.1.3.2.1
Coal, coal tar: 35.23.1
Coal gas
Coal, prepare gas by destructive distillation of coal: 10.6.5
Coal seam gas, CSG, and coal to liquid, CTL, projects: 35.23.1.1
Coal tar products: 16.2.10
Colours, food additives: 19.4.4.13 (See: "coal tar", e.g. E102)
Prepare ammonia, Haber process: 3.33.01 (See: "cloudy ammonia")

Cobalt, Co, Cobalt (II) AAS Solution, pellets, powder
Cobalt, Co, Table of the elements
Cobalt compounds
Cobalt properties: 7.2.2.14
Properties of cobalt salts 12.6.1
Tests for cobalt: 12.11.3.10.10
Toxicity: 3.6.6

Cobalt compounds
Cobalt (II) carbonate (basic), (blue glaze for craft, for spectral analysis with flame test for cobalt), Harmful if ingested
Cobalt (II) chloride, cobalt chloride
Cobalt (II) nitrate
Cobalt (II) thiocyanate, Co(SCN)₂, cobalt (II) thiocyanate, Harmful, Environment danger, in Scott's reagent test for cocaine
Cobalt (II) oxide, CoO
Cobalt (III) acetylacetonate
Cobalt (III) oxide, CO₂O₃, cobalt sesquioxide, black-grey, catalyst, when heated forms CO₃O₄
Cobalt, (II, III), oxide, CO₃O₄, artificial photosynthesis
Cobalt nitrate, For 0.1 M soln., 29 g in 1 L water
Cobalt steel, alloy
Cobalt sulfate heptahydrate, cobalt (II) sulfate 7H₂O, Harmful, Environment danger
Cobaltous chloride AAS Solution
Cobaltous nitrate AAS std
Heat sensitive paper, cobalt (II) chloride, ammonium chloride (sal ammoniac): 5.3.10
Hydrogen peroxide with potassium sodium tartrate, cobalt (II) chloride catalyst, visible activated complex: 17.3.6
Movement of ions between microscope slides, Cu²⁺ ions, CO²⁺ions: 3.90
Properties of cobalt salts: 12.6.1
Sodium hypochlorite decomposition, cobalt sulfate catalyst: 17.3.14
Tests for cobalt, nitroso-beta-naphthol test: 12.11.3.10.10
Toxic salts: Cobaltous aluminate, (cobalt blue), Cobalt magnesium borate (cobalt violet, violet 48), Cobaltous oxide, (cobalt green)

Cobalt chloride, Cobalt (II) chloride, CoCl₂.6H₂O, cobalt (II) chloride hydrated, cobalt (II) chloride-6-water, cobalt chloride hexahydrate, Harmful if ingested, Environment danger
Cobalt (II) chloride-6-water, chemical equilibrium, concentration and temperature: 17.5.1
Cobalt (II) chloride-6-water, For 0.1 M soln., 23.8 g in 1 L water
Cobalt (II) chloride-6-water, Cobalt (II) chloride solution, invisible writing ink: 3.2.5.2
Cobalt (II) chloride, Heat sensitive paper, cobalt (II) chloride: 5.3.10
Glycerine with cobalt chloride solution: 12.7.8
Tests for water, cobalt (II) chloride paper: 5.3.9

Coins
Alloys of "noble metals", Au, Ag, Pt, Pd: 5.5.11
Coins, simple cell with two coins: 4.51
Coin cells: 33.3.3
Coins on a slope: 6.11 (Primary)
Conduction of heat by a coin on paper: 4.21
Copper-aluminium alloys, bronze: 5.5.8
Copper-zinc alloys, brass: 5.5.6
Copper-nickel alloys: 5.5.9
Electricity from two coins: 4.51
Inertia tricks: 4.13
Restore bronze coins, corrosion of alloys: 15.3.14
Silver mirror tests for aldehydes, Tollens' tests for acetaldehydes: 16.3.7.3

Coloured ions
Metals, non-metals, transition metals: 7.3.0 (See: 2. Transition metals)
Movement of copper and chromate ions: 3.89
Movement of ions between microscope slides, Cu²⁺ ions, CO²⁺ions: 3.90
Ionic migration: 33.3.9

Combustion
Burning, effect when heat substances: Topic 8
Carbon dioxide is a product of combustion: 8.6.3
Combustible solids: 3.5.10
Conditions for combustion and ignition temperature: 8.6.0
Fire safety: 3.5.0
Oxygen gas is necessary for combustion: 8.6.2
Respiration is a form of combustion: 8.6.5
Sugar with potassium chlorate, spontaneous combustion: 17.3.4

Common ion effect in ammonium chloride solution: 17.5.5.6
Common ion effect, sodium ethanoate and ethanoic acid: 17.5.2
Common ion effect to precipitate sodium chloride from solution: 17.5.5.3
Common ion effect to precipitate barium chloride from solution: 17.5.5.4

Composition of edible oils: 19.2.1.1.1
Composition of the atmosphere and greenhouse gases: 3.32.1
Composition of the Earth's crust, abundance of elements: 36.3.01
Composition of the Sun, abundance of elements: 36.3.02
Food composition: 19.2.0
Prepare seawater crystals, composition of seawater: 3.54.1

Compounds
Appendix A, Chemical compounds by chemical name: 2.0
Compounds, chemical compounds: 7.0
Compounds, Mixtures and compounds, Synthesis reactions (combination reactions): 12.2.2.0
Compounds, Pure substances and impure substances, elements and compounds: 7.2.0
Compress, Solutions used in making herbal remedies, infusion, decoction, tincture: 5.04 (See 11.)

Contact explosives
Acetone peroxide
Lead azide, Pb(N₃)₂, contact explosive, in detonators
Mercury fulminate, Hg(OCN)₂, initiator in detonator and percussion caps for blasting
Nitrogen triiodide, triiodoamine, NI₃, touch powder, ammonium triiodide, Explosive if dry,
Not permitted in schools
Nitroglycerine (UK), nitroglycerin (USA): 16.1.3.0.3
Picric acid
Potassium chlorate in pyrotechnic flash powders: 15.2.13.2
Magnesium with PTFE, 16.2.2
Silver fulminate, AgCNO, contact explosion, extremely sensitive so useless, except tiny amounts in children's noise-making toys
Silver nitride, Ag₃N, contact explosive unstable, occasionally unwelcome occurrence in silver experiments
Tetrasulfur tetanitride, S₄N₄
TNT, trinitrotoluene, CH₃C₆H₂(NO₂)₃

Copper, Cu, metal foil (0.13 mm), bronze powder (electrolytic), turnings, nails, filings, wire, sheet, malleable
Copper, natural copper: 35.20.11 (Geology)
Copper sheeting, 900 mm width × 600 mm depth × 0.7 mm height, sheet
Copper wire, 18 SWG, bare, 1.22 mm diameter, 0.0418 Ohm / m
Copper wire connecting, PVC covered
Coppers, referred to the former English penny coin made of copper, discontinued in 1971
Bornite, bournonite: 35.20.6
Bunsen burner flame can melt copper wire: 22.6.2
Burn substances in chlorine: 13.4.8
Concentrated acids with metals, sulfuric acid with copper: 12.3.13
Concentrated acids with metals, nitric acid with copper: 12.3.12
Copper-aluminium alloys, bronze: 5.5.8
Copper-nickel alloys: 5.5.9
Copper-tin alloys, bronze: 5.5.7
Copper-zinc alloys, brass: 5.5.6
Copper, Cu, Table of the elements
Copper coil candle snuffer: 23.7.6
Copper, element, (cuprum), copper (I) Cu⁺, copper (II) Cu²⁺ red, lustrous, but brown-green if weathered
Copper, essential element for human body for red blood cells and bone growth, folk medicine, (copper bracelet for arthritis?)
Copper, natural copper, (Geology): 35.20.11
Copper properties: 7.2.2.15
Copper, std (10.00 g Cu), ICP Solution, LR tablets, AAS Solution, precipitated
Copper in brass alloy: 5.5.3
Copper coil, candle snuffer, brass wire netting extinguishes candle: 23.7.6
Copper toxicity: 3.6.7
Copper with zinc in sulfuric acid: 12.14.2.5
Deficiency symptoms and fertilizing the soil: 5.35.1 (See 10. Copper)
Flame test of copper wire: 12.7.11
Oxidize a piece of copper: 12.7.9

Copper compounds
Conservation of mass in a cycle of copper reactions, the copper cycle experiment: 12.1.3
Copper (I) acetate, copper acetate, cupric acetate
Copper (I) chloride, CuCl, cuprous chloride, white solid, covalent, Harmful, Environment danger
Prepare copper (I) chloride_:12.7.7
Copper (I) cyanide
Copper (I) iodide, CuI, cuprous iodide, Harmful if ingested
Copper (I) oxide, Cu₂O
Copper (I) sulfide, Cu₂S, copper monosulfide, copper glance mineral, chalcocite (Geology)
Copper (I) sulfide, Cu₂S, covelite, indigo copper, (in luminous paints, catalyst), Harmful if ingested
Copper (I) sulfite, cuprous sulfite
Copper (II) acetate, copper (II) ethanoate, copper acetate, cupric acetate, Harmful if ingested
Copper (II) acetoarsenite, Paris Green, Cu(C₂H₃O₂)₂·3Cu(AsO₂)₂
Copper (II) bromide
Copper (II) carbonate, CuCO₃
Copper (II) chloride, CuCl₂
Copper (II) chromate (VI)
Copper (II) hydroxide, Cu(OH)₂, cupric hydroxide, blue pigment
Copper (II) nitrate, Cu(NO₃)₂.3H₂O
Copper (II) oxide, CuO
Copper (II) perchlorate (hexahydrate)
Copper (II) sulfate
Copper (II) sulfide, CuS, coins and electrical wiring, copper (II) sulfide 6, chalcocite, copper glance, redruthite, Harmful if ingested
Azurite mineral, Cu₃[OHCO₃]₂, basic copper carbonate, blue carbonate of copper: 35.20.4
Chalcocite mineral, copper glance, copper (I) sulfide, Cu₂S
Chalcopyrite, copper pyrites, copper iron sulfide, CuFeS₂: 35.20.9
Copper-aluminium alloys, bronze: 5.5.8
Copper-nickel alloys: 5.5.9
Copper-tin alloys, bronze: 5.5.7
Copper-zinc alloys, brass: 5.5.6
Copper acetoarsenite, (emerald green, Paris green), is a pigment of significant toxicity
Copper ammonium chloride solution, [Cu(NH₃)₃Cl₂], Etchants: 7.9.20.1
Copper alloys, CZ copper-zinc brass, PB phosphor bronze, LG leaded gunmetal, CT copper-tin bronze
Copper alloys, AB aluminium bronze, CN copper-nickel
Copper arsenite, Scheele's green, CuHASO₃, (acidic copper arsenite), pigment of significant toxicity
Copper ammonium chloride, tetramminecopper (II) chloride
Copper ammonium hydroxide
Copper chrome arsenate, (CCA), Treated timber, wood: 12.2.2.1
Copper coins, alloy of zinc and tin in copper
Copper cycle experiment, conservation of mass in a cycle of copper reactions: 12.1.3
Copper ferrocyanide, Cu₂Fe(CN)₆, copper ferrocyanide as a semipermeable membrane: 9.167
Copper from brass: 12.7.10
Copper in brass alloy: 5.5.3
Copper ions, displacement from aqueous solution of copper ions: 2.72
Copper ions, movement of copper and chromate ions: 3.89
Copper ions, movement of copper ions in ammonium nitrate solution: 3.4.3
Copper ions, movement of ions between microscope slides, Cu²⁺ ions, CO²⁺ions: 3.90
Copper nickel, niccolite, kupfernickel
Copper oxychloride fungicide: 16.13.6.4
Copper phosphide, Harmful if ingested
Copper plating, electroplating: 15.1.2
Copper pyrite, chalcopyrite: 35.20.3.1
Copper residues 3.2
"Copper sulfides", bornite, bournonite, chalcopyrite, Cu₅FeS₄: 35.20.6 (Geology)
Copperas, FeSO₄.7H₂O, iron (II) sulfate
Cuprite, red oxides of copper, Cu₂O
Cuprammonium sulfate, Cu(NH₃)₄SO₄.H₂O: 12.7.5
Displacement of copper by zinc: 3.84
Displacement of copper from solution of copper ions: 3.72
Electroforming with copper: 15.1.7
Electroplating copper, copper plating, copper flashing of iron: 15.1.10
Electroplating, zinc plating of copper: 15.1.6
Faraday's first law (copper and copper (II) sulfate solution): 15.1.1 Faraday's first law
Gold coins, e.g. Australian $1 coin, alloy of aluminium and nickel in copper
Group 2 tests for Bi³⁺, Cd²⁺, Cu²⁺, Sn²⁺: 12.11.4.2
Heat copper foil: 8.2.12
Heat copper, substances that gain mass when heated, copper foil: 3.28
Heat copper with iodine, synthesis reaction: 12.2.2.2
Malachite, copper (II) carbonate: 35.20.24
Oxidation of acetone vapour, copper oxides catalyst: 17.3.10
Prepare copper (I) chloride, CuCl: 12.7.7
Prepare copper (II) ammonium sulfate, (NH₄)₂SO₄.CuSO₄.6H₂O: 12.7.4
Prepare cuprammonium sulfate, Cu(NH₃)₄SO₄.H₂O: 12.7.5
Prepare nitrogen dioxide, {nitrogen (IV) oxide, NO₂}: 3.47
Prepare sulfur dioxide, sulfuric acid with copper: 3.51.0 (See 7.)
Reactions of copper (I) compounds, Cu⁺: 12.7.3
Reactions of copper (II) ions, Cu²⁺: 12.7.2
Reactions of copper oxide, CuO: 12.7.1
Reactions of copper with iron: 12.2.2.0 (See 2.)
Recycle copper: 12.7.8
Substances that gain mass when heated, copper foil: 3.28
Tests for copper, ammonium hydroxide test, rubeanic acid test: 12.11.3.10.11
Wood treated with copper chrome arsenate (CCA): 12.2.2.1

Copper (I) oxide, Cu₂O, copper oxide, cuprous oxide, brown copper oxide, red copper oxide, red-brown powder, deliquescent
Copper (I) oxide, cuprite, copper ore, "copper oxide", Harmful if ingested
Copper (I) oxide, Solution < 25%, Not hazardous
Alkalis with basic oxides, copper oxide: 12.7.5
Prepare copper (I) oxide, Cu₂O: 12.7.6
Reduce copper (I) oxide, (copper oxide) to copper: 10.10.2

Copper (II) carbonate, CuCO₃, cupric carbonate, blue-green powder, Harmful if ingested
Copper (II) carbonate basic, CuCO₃.Cu(OH)₂.H₂O, basic copper carbonate, (shows decomposition of carbonates, at 200^oC)
Copper carbonate, azurite: 35.20.4
Prepare rayon, basic copper carbonate with ammonia solution: 3.4.8.1

Copper (II) chloride, CuCl₂, cupric chloride, brown powder, Harmful, Environment danger
Copper (II) chloride, anhydrous copper chloride, cupric chloride, brown-yellow powder, Harmful if ingested
Copper (II) chloride, Solution < 25%, Not hazardous
Copper (II) chloride dihydrate, copper (II) chloride 2H₂O, copper chloride, cupric chloride, Harmful if ingested
Copper (II) chloride, strong electrolytes: 15.02
Alkalis with salts, sodium hydroxide with copper salts: 12.7.4

Copper (II) nitrate, Cu(NO₃)₂.3H₂O, copper (II) nitrate 3H₂O, copper (II) nitrate trihydrate, cupric nitrate, Harmful
Copper (II) nitrate, copper nitrate crystals, blue solid, deliquescent, anhydrous form probably covalent.
Copper (II) nitrate hydrate, copper nitrate hydrated, cupric nitrate Std, blue crystal, deliquescent, Harmful if ingested
Copper (II) nitrate, For 0.1 M soln., 29.6 g in 1 L water

Copper (II) oxide, CuO, black copper oxide, cupric oxide, melconite, tenorite, black solid, soluble in dilute acids
Copper (II) oxide, used in craft, deep blue colour in glass
CuO, basic oxides, copper (II) oxide powder: 12.17.2
Copper (II) oxide, "copper oxide", cupric oxide, Harmful if ingested
Dilute acids with basic oxides, copper (II) oxide: 12.3.5
Heat copper carbonate, CuCO₃.Cu(OH)₂.H₂O, basic copper carbonate: 8.2.05
Heat food with copper (II) oxide: 16.9.2
Heat zinc with copper (II) oxide: 12.17.2.1
Reduce copper (II) oxide to copper with ammonia: 13.6.7
Reduce copper oxide with natural gas, methane: 3.41.4

Copper (II) sulfate, CuSO₄.5H₂O, hydrated copper (II) sulfate 5H₂O, copper sulfate, cupric sulfate, blue vitriol
Copper (II) sulfate solution, 0.5 M, Harmful / Slightly toxic / Poisonous if swallowed, skin contact, contact with wounded skin.
Copper (II) sulfate pentahydrate, cupric sulfate pentahydrate, bluestone, copper sulfate
Copper (II) sulfate anhydrous, copper sulfate, cupric sulfate anhydrous, Harmful if ingested
Copper (II) sulfate anhydrous,
Copper (II) sulfate, CuSO₄.5H₂O, For 0.1 M soln., 25 g in 1 L water + 5 mL conc. H₂SO₄
Copper (II) sulfate is insoluble in methylated spirits
Copper (II) sulfate solution with magnesium: 14.1.2
Distil copper (II) sulfate solution: 10.5.2
Electrolysis of copper (II) sulfate solution, Faraday's laws: 15.5.15
Electrolysis of copper (II) sulfate solution with copper and platinum electrodes: 15.5.17
Electrolysis of copper (II) sulfate solution with copper electrodes: 15.5.18
Electrolysis of copper (II) sulfate solution, electrochemical equivalent of copper: 15.5.19
Electrolysis of copper (II) sulfate solution: 15.5.14
Electrolysis of copper (II) sulfate solution, microscale electrolysis: 15.5.16
Exothermic reactions give out heat energy: 3.80 (See 1, 2.)
Heat copper (II) sulfate-5-water crystals: 3.2.1
Heat of solution of anhydrous copper (II) sulfate Heat of solution, anhydrous: 14.1.1
Iron and zinc with copper (II) sulfate solution: 12.14.2.3
Magnesium, or zinc, with copper (II) sulfate solution: 12.14.2.1
Metals in copper (II) sulfate solution: 12.14.2
Prepare copper (II) carbonate and copper (II) oxide 12.15.4
Prepare ink, yellow invisible ink: 12.15.1
Prepare preserving agent for cut flowers: 19.6.5
Prepare rayon, copper (II) sulfate with ammonia solution: 3.4.8.0
Tests for oxidizing agents by change of colour of iron with copper (II) sulfate: 15.2.9
Tests for oxidizing agents by change of colour of zinc with copper (II) sulfate: 15.2.10
Use golden syrup to make red copper (I) oxide: 12.15.5
Zinc with copper (II) sulfate solution, heat from a displacement reaction: 14.1.6
Zinc with lead nitrate solution and iron with copper (II) sulfate solution: 12.14.2.4

Cresol red, C₂₁H₁₂NaO₅S, o-Cresolsulfonephthalein, triarylmethane dye, acid-base indicator, used to monitor the pH in aquaria, Irritates eyes, do not ingest.
m-cresol, 3-hydroxytoluene, Highly toxic by all routes, lung irritant vapour, highly corrosive to skin
m-cresol, Solution < 12%, Not hazardous
Cresols: 16.1.3.2.3

Crystals, crystal growth
Crystalloids, Colloids and crystalloids: 7.8.0
Crystals of different salts, storm glass: 12.10.1.0
Fractional crystallization of seawater: 7.7.14
Prepare crystals: 3.1.0
Separate by recrystallization: 10.9.0
Water of crystallization: 3.2.0

Cyanide, CN cyanides CN^-, Cyano -CN, cyanides, nitriles, cyanide reagent test kit
Cyanamides, inorganic salts, CN₂^2-, Ionization reaction of methylamine, cyanic acid, melamine: 16.2.4.2.1
Cyanides, cyanamides: 16.2.4.2
Cyanides, thiocyanates, Hazards: 3.7.18
Cyanocrylates, [(CH₂)C(CN)COOR], "Superglue": 16.2.4.7
Cyanuric acid, (CNOH)₃, conditioner, stabilizer: 18.7.14
Cyanine acid blue R
Cyanoacetic acid
Cyanuric chloride
Cyanic acid, HOCN, fulminic acid, (salts: fulminates)

Cyclohexane, C₆H₁₂, hexahydrobenzene, colourless liquid, ethereal odour, Highly flammable, Toxic by all routes
Cycloalkanes: 16.1.1.1a
Cyclohexane, aromatic hydrocarbons, e.g. benzene, (C₆H₆): 16.3.4.0.1
Cyclohexane, octane number: See diagram 16.1.1h
Flammable liquids, cyclohexane: 3.5.8
Molal freezing point constant of cyclohexane solvent: 24.1.14
Prepare nylon polymer: 3.4.7
Steam distillation to find the water and fat content of food, toluene (substitute cyclohexane): 10.5.5