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Male pharmacist working with test tubes in laboratory, (B&W)
Preparation of diethyl ether, wood engraving, published in 1880Preparation of diethyl ether: condensation of ethyl alcohol (ethanol) and sulfuric acid at a temperature of 130 to 140 A C (273 to 413 A K). Wood engraving, published in 1880
Preparation of chlorine water, wood engraving, published in 1880Preparation of chlorine water: Chlorine gas is fed into a filled halfway with water bottle until the water is saturated with chlorine, and continues to flow into the next bottle
Scientific experiment - Scanned 1887 Engraving
Illustration of cross section through vacuum flask
glass laboratory flasksGlass flasks with liquid as used in research and science labs for scientific, medical, and chemical analysis and research
Illustration of young man carrying rucksack and canteen
Medic kitIllustration of a medicinal and bandage bag of hospital assistants
Battery - medicine and bandage boxIllustration of a Battery - medicine and bandage box
Digital illustration of blue chemistry flask
Illustration of vacuum experiments, flame being extinguished in a vacuum, sound being muted in a vac
Illustration of chemical liquid reacting in flask