Evaporating water using a sand tray
Distillation apparatus
Iron filings being heated
Heating copper sulphate solution
Iodine sublimation
Copper powder being heated
Evaporating water from a brine solution
Heating water
Copper carbonate being heated
Organic synthesis
Salt crystals formed by evaporation
Residue from evaporated water
Fehling's reaction
Bunsen burner
Boiling water with a Bunsen burner.
Chemistry experiment
Conduction of heat
Water being heated
Iron II Sulphide with hazard pictogram
Iron II Sulphide on watch glass
Heating water and copper sulphate
Chemistry apparatus
Test tube of sulphur and iron mix
Producing gas
Reduction of copper
Haloalkane test
Silver oxide decomposition
Lit bunsen burner
Boiling water with a Bunsen burner
Aluminium chloride preparation
Picromerite mineral
Thermolysis of mercury oxide
Separating salt from rock salt
Evaporation residues
Orange juice being boiled on a Bunsen
Water evaporation residues
Copper sulphate crystallizing
Evaporation experiment
Burning aluminium
Burning iron
Iron filings in a bunsen flame
Boiling proteins
Nitrobenzene preparation
Iron filings and sand
Heating sulphur
ガスバーナーで切断した鉄骨
Iron II sulphate 7 water on watch glass
Iron and sulfur reaction
Copper chloride crystals
Sulphur crystals
Burning lithium
Flame test for calcium.
Lubricating oil
Calcium carbide salts
Conical flask on a tripod containing water being heated
Iron filings and sulphur
Chromium III chloride 6 water
Heating zinc oxide
Phenol crystals
Iron sulphate
Cobalt chloride
Anhydrous copper sulphate
Iron (II) chloride crystals
Zinc nitrate crystals
Iron (II) chloride on a watch glass
Iron (II) chloride with hazard pictograms
Iron and sulphur
Sulphur
Sulphur and iron filings
Copper II sulphate
Holding microscope slide over flame
Ammonium chloride sublimation
Strontium flame test
Flame test on potassium
Flame test on sodium
Lithium flame test
Barium flame test
Potassium flame test
Sodium flame test
Calcium flame test
Burning magnesium
Burnt copper
Copper flame test
Heating sugar
Heating an iron nail
Germany, Bavaria, Bunsen burner with protection goggles
ガスバーナー
道路の消火栓の補修工事
ガスコンロ
Heating magnesium in a flame
Bunsen burner with pilot light
Convection experiment with paper dots
鋳造職人
Evaporites of hard and distilled water
Nickel II nitrate 6 water on watch glass
Close up of blow torch flame on metal
Blow torches with flames crossing
Chromium III chloride and hazard pictogram
Sodium
Evaporation deposit from salt water
Potassium dichromate crystallization, macrophotograph
Sodium chloride crystallization
Potassium chromate crystallization
Sodium sulphate crystallization
Copper chemistry experiment
Heating zinc in a flame
Zinc sulphate crystals.
Ammonium chloride
Comet core
Structure of comet
Coarse iron filings on a watch glass
Copper, mercury & magnesium
Transition metals
Sodium borohydride powder
Manganese (IV) oxide
Copper oxide powder
Magnesium metal powder in watch glass
Potassium dichromate on a watch glass
Copper II oxide on a watch glass.
Nickel II nitrate with hazard pictograms
Potassium dichromate and hazard pictograms
Magnesium metal with hazard pictograms
Copper II oxide with hazard pictograms
Copper (II) chloride on watch glass
Copper (II) chloride with hazard pictograms
Flame test for strontium.
Healthcare And Medicine,Glassware,Utensil,
道路工事現場のアスファルト
Distillation equipment
Copper sulphate being heated
Sulphur being heated
Gas burner, close-up
道路工事のガスバーナー
熱気球
道路工事用のガスバーナーの噴射口
Iodine
Zinc II chloride with hazard pictograms
Copper (II) sulphate
Plastic mulch on strawberry field
Salt evaporation ponds
Gypsum crystals
Healthcare And Medicine,Glassware,Laboratory Glassware,Utensil,
Sodium hydroxide with hazard pictogram
Sodium hydroxide pellets on watch glass
Copper (I) chloride on watch glass
Laboratory flasks
Sterilising a wire loop