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E-learning book

Colors of substances

Colors of common substances

Cu Copper soft pink plastic metal
Cu2O Copper(I) Oxide a crystalline, water-insoluble substance of brick-red color
CuO Copper(II) oxide crystals of black color, practically insoluble in water
CuS Copper(II)Sulfide black substance insoluble in water and dilute acid solutions
Cu(OH)2 Copper(II)Hydroxide blue amorphous or crystalline substance, practically insoluble in water
CuSO4 Copper(II)sulfate / Copper sulfate dry white, with an admixture of water - transparent crystals of blue color
Zn Zinc bluish-white metal, soft, brittle
ZnO Zinc Oxide colorless crystalline powder, insoluble in water, turning yellow when heated
ZnS Zinc Sulfide
Zn(OH)2 Zinc Hydroxide
Al Aluminum light silver-white metal
Al2O3 Aluminum oxide white solids insoluble in water
Al(OH)3 Aluminum Hydroxide
AlPO4 Aluminum Phosphate
Ag Silver shiny white soft plastic metal
AgCl Silver Chloride(I) white powder or colorless crystals
AgBr Silver(I)Bromide light yellow crystalline substance insoluble in water
AgI Silver Iodide toxic, solid, insoluble in water yellow substance
Ag2O Silver Oxide(I) black or dark brown powder
Ag3PO4 Silver(I)Orthophosphate water-insoluble salt of silver and orthophosphoric acid, yellow crystals
Fe Iron silver-gray soft malleable metal
FeO Iron(II) oxide solid insoluble in water substance of black color
Fe(OH)2 Iron(II)Hydroxide gray-green precipitate, gelatinous precipitate of brown or brown-orange color, one of the intermediate compounds in the rusting of iron
Fe2O3 Iron(III) Oxide red-brown color, formed by the combustion of iron in air
Fe(OH)3 Iron(III)Hydroxide solid red-brown, insoluble in water
Fe3O4 Iron oxide(II,III) black crystals, formed on the surface of steel and iron objects in the form of a layer of black scale when they are heated in air
FeCl3 Ferric(III)Chloride used for etching printed circuit boards
S Sulfur yellow water-insoluble substance
SO2 Sulfur Oxide(IV)/Sulfur dioxide colorless gas with an unpleasant odor, one of the main components of volcanic gases, food additive E220
H2SO4 Sulfuric acid heavy oily liquid without color and odor, with a strong acidic "copper" taste, strong chemical inorganic acid
Cr Chrome solid metal of bluish-white color
CrO Chromium(II) oxide black or red crystals, does not interact with water
Cr2O3 Chromium(III) Oxide solid refractory powder of green color
CrO3 Chromium(VI) oxide dark red crystals, highly soluble in water
Na2Cr2O7 Sodium Dichromate red to orange hygroscopic crystals, a semi-product in the production of chromium, very toxic
Na2CrO4 Sodium Chromate yellow crystals, soluble in water
Cr2(SO4)3 Chromium(III)Sulfate paramagnetic violet-red crystals
K3[Cr(OH)6] Sodium Hexahydroxochromate(III) green amorphous substance, soluble in alkaline solutions
Mn Manganese hard, brittle metal, silver-white color
MnO2 Manganese(IV) oxide dark brown powder, insoluble in water
Mn(OH)2 Manganese(II)Hydroxide gelatinous light pink precipitate, oxidized in air
KMnO4 Potassium permanganate/potassium permanganate dark purple, almost black crystals, when dissolved in water, forming a brightly colored fuchsia solution
K2MnO4 Potassium manganate dark green salt
P4 Phosphorus white phosphorus similar to purified wax or paraffin, easily cut with a knife and deformed by small efforts
Ag3PO4 Orthophosphate silver(I) yellow crystals, insoluble in water
Li3PO4 Lithium orthophosphate white crystalline substance insoluble in water
Ba3(PO4)2 Barium phosphate amorphous white powder poorly soluble in water, soluble in the presence of NH4Cl, acetic acid and strong acids
Pb Lead low-melting heavy metal of silver-white color with a bluish tint
PbS Lead(II)sulfide a crystalline compound with a color from blue-gray to silver-gray
PbSO4 Lead(II)sulfate/Lead vitriol powder, used as a component of pigments
PbI2 Lead(II) Iodide diamagnetic yellow crystals, soluble in hot water, slightly soluble in cold
baso4 Barium sulfate white powder or transparent crystal, practically insoluble in water and other solvents
BaSO3 Barium sulfite white powder or transparent crystal
BaCrO4 Barium chromate bright-yellow crystalline substance poorly soluble in water
CaCO3 Calcium carbonate white powder
NH3 ammonia colorless gas with a pungent smell
NO2 Nitric oxide(IV) brown gas
Cl2 Chlorine suffocating gas of yellowish-green color, with a pungent odor and a sweet, "metallic" taste