Caption

Application of high voltage current, electrolysis of black copper: Process for purifying or extracting copper using an electric current. Electrolytic soda & NaCl: Illustration of the decomposition of chemical compounds such as sodium chloride (NaCl) by electrolysis to extract elements such as chlorine. Electric resistance furnace and synthesis of acetylene, authentic, digitally restored reproduction of a 19th century model, exact date of depiction unknown, historical

Date

Feb 17, 2026

Credit line

Photo12/imageBROKER/Sunny Celeste

Reference

BRK26B55_472

Model release

No

Property release

No

License type

Royalty free

Available size

473.0Mb (25.2Mb) / 49.0in x 37.5in / 14712 x 11238 (300dpi)

Keywords

deserted copper metal Sign date education school history disinfect hygiene drawing power supply accurate telephone communication element picture classic illustration depiction electric information digital antiquity historic educational institution information panel Character sick chemical procedure electricity risk of infection hygienic energy restored contemporary drawn information sign disease power industry chlorine disinfectant display board high voltage authentic woodcut restoration field of education former smartphone app vintage sketch decomposition printing method pathogen replication 19th century Historic illustration Training material Silhouette Wood engraving colouring Chart black copper no one signpost electricity supply precise phone image classical representation electrical ancient times historical information board ill process sanitary sickness energy industry real xylograph reconstruction educational system mobile phone application nineteenth century Historical illustration silhouette No People energy supply exact diseased technique danger of infection illness realistic woodprint cellular phone reproduction 1900s outline nobody notice board genuine cell phone replica uninhabited signboard cellphone copy empty metals signs dates schools disinfecting drawings power supplies telephones communications elements pictures illustrations depictions digitally Altertum educational institutions information panels Characters procedures risks of infections energies information signs diseases power industries chlorines disinfectants display boards woodcuts restorations fields of education formerly smartphones apps decompositions printing methods pathogens 19th-century Historic illustrations images classically historically info panel info panels reconstructions mobile phones Historical illustrations silhouettes information boards cellular phones cell phones replicas info signs cellphones notice boards disinfects depicting historical image history image history images info sign sign restoration work smart phone vintage-styled representing info board mobile silhouetted