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Arsenical bronze is an alloy in which arsenic, as opposed to or in addition to tin or other constituent metals, is combined with copper to make bronze. The use of arsenic with copper, either as the secondary constituent or with another component such as tin, results in a stronger final product and better casting behavior. [1]
Arsenical bronze objects appear first in the Middle East where arsenic is commonly found in association with copper ore, but the health risks were quickly realized and the quest for sources of the much less hazardous tin ores began early in the Bronze Age. [7]
A study in the journal Antiquity from 2013 reported the discovery of a tin bronze foil from the Pločnik archaeological site dated to c. 4650 BC, as well as 14 other artefacts from Serbia and Bulgaria dated to before 4000 BC, showed that early tin bronze was more common than previously thought and developed independently in Europe 1,500 years before the first tin bronze alloys in the Near East.
Bronze is an alloy consisting primarily of copper, commonly with about 12–12.5% tin and often with the addition of other metals (including aluminium, manganese, nickel, or zinc) and sometimes non-metals (such as phosphorus) or metalloids (such as arsenic or silicon).
During the Bronze Age, arsenic was melted with copper to make ... the current WHO standard should weigh the costs and benefits of arsenic remediation. Early (1973 ...
The first swords known so far date to ca. the 33rd to 31st centuries BCE, during the Early Bronze Age, and have been founds at Arslantepe by Marcella Frangipane of Sapienza University of Rome. [ 34 ] [ 35 ] [ 36 ] A cache of nine swords and daggers was found; they are cast from an arsenic–copper alloy . [ 37 ]
Given that villages in early Bronze Age Britain had between 50 and 100 residents, experts believe this might have amounted to the eradication of nearly a whole community.
Norşuntepe provides first clear and unambiguous evidence of arsenical bronze production in this general area before the 4th millennium. It demonstrates that some form of arsenic alloying was being deliberately practised. Since the slag identified at Norşuntepe contains no arsenic, this means that arsenic-bearing materials were added separately.