Copper II carbonate hydroxide & pictogram
Copper II carbonate hydroxide on glass
Copper (II) carbonate photographed at 1:1
Copper II sulphate on watch glass
Copper II sulphate with hazard pictograms
Nickel II nitrate with hazard pictograms
Nickel II nitrate 6 water on watch glass
Copper (II) oxide (CuO) on a watch glass
Iron (II) chloride on a watch glass
Potassium dichromate on a watch glass
Potassium dichromate and hazard pictograms
Iron II sulphate 7 water on watch glass
Sodium hydroxide with hazard pictogram
Copper (II) chloride on watch glass
Copper (II) chloride with hazard pictograms
Iron (II) chloride with hazard pictograms
Copper oxide
Sodium carbonate with hazard pictograms
Copper II oxide on a watch glass.
Copper II oxide with hazard pictograms
Copper II oxide photographed at 1:
Sodium hydroxide pellets on watch glass
Zinc II chloride with hazard pictograms
Calcium chloride with hazard pictograms
Manganese dioxide with hazard pictograms
Manganese (IV) oxide
Copper carbonate being heated
Zinc Sulphate with hazard pictograms
Zinc Sulphate 7 water on watch glass
Copper metal turnings on a watch glass
Sodium hydroxide
Potassium permanganate on a watch glass
Potassium permanganate hazard pictograms
Copper oxide powder
Iron (II) chloride crystals
Cyclohexene
Copper heads and mould
Oxidation of ethanal
Rochelle salt and hydrogen peroxide
Copper (II) sulphate
Copper carbonate reaction
Copper sulphate with sodium carbonate
Hydroxide precipitates
Copper carbonate
verdigris
Zinc nitrate crystals
Potassium nitrate with hazard pictograms
Sodium borohydride powder
Copper pipe deposits
Copper formed by oxide reduction
Metal salt crystals
Manganese dioxide on a watch glas
Heating zinc oxide
Copper, mercury & magnesium
Copper oxidation experiment
Reduction of potassium dichromate
Salt crystals formed by evaporation
Iron II Sulphide with hazard pictogram
Ammonia and copper sulphate reaction
Copper sulphate reaction
Iron II sulfate reaction
Sodium hydroxide added to iron II sulfate
銅の板
チェーン
Oxidations of alcohols
Name Plate "Beardsley Hall, Erected 1906" Swarthmore College, Swarthmore, Pennsylvania, USA
Brass analysis
Copper (I) oxide on a watch glass
Copper (I) oxide with hazard pictograms
Zinc chloride and zinc sulphate
Chromate solutions
Iron test
Vanadium (II) solution
Manganese (II) solution
Iron (II) and (III) precipitates
Reaction of sodium carbonate in acid
Anhydrous copper sulphate
Close up of vintage metal toilet paper roll holder.
Weathered metal door, close-up
取手
Magnesium metal powder in watch glass
Magnesium metal with hazard pictograms
Magnesium sulphate water 7 on watch glass
Magnesium sulphate with hazard pictograms
Phenol crystals
Cobalt chloride
Vanadium oxidation states
Magnesium carbonate in hydrochloric acid
Reduction of copper
Iron II Sulphide on watch glass
Copper sulphate reaction with ammonia
Fishing nets and ropes in a heap, extreme close-up
Chemistry experiment
Copper (II) reaction
Hydrogen peroxide decomposition catalysis
Copper sheet in zinc solution
錆びた鎖のアップ
抽象イメージ
錆びた鎖
錆びたの針金
錆びたスパナ
Stack of rusted shellfish cages
Transition metals
鉄の塊
Botryoidal malachite
Polished slab of Malachite
Malachite
古民家の雨樋と立樋
銅製の雨といの緑青
銅板葺き建築
唐草風のレリーフ
神社の本殿の屋根
銅製のドーム屋根
Transition metal salts
Vanadium (V) solution
Vanadium (IV) solution
Vanadium (III) solution
Manganese (III) solution
Manganese (VI) solution
Manganese (VII) solution
Reaction of magnesium carbonate in acid
Zinc sulphate crystals.
Chromium III chloride and hazard pictogram
Zinc oxide with hazard pictograms
Alcohol oxidation
Copper
Bathroom with corten steel wall cladding
やしの木
Aluminium precipitate in sodium hydroxide
Aluminium in excess sodium hydroxide
Ammonium chloride
Rusted surface
Rusted chain
Sodium
Close up of metal cable
Finding moles of iron in a sample
Close up of rusty barbed wire
銅板
Copper II sulphate water 5 on watch glass
Copper ion reaction
Sink unblocker chemical crystals
Grey limestone and iron oxide
Iron and sulphur
Sulphur