When ferric chloride completely reacts with the antimony trisulphide, the resulting reaction mixture consists of antimony trichloride, ferric chloride, ferrous chloride, lead chloride, sulfur particles and other un-reacted material such as quartz and clay.
Solid valuable by-products obtained include elemental sulphur and heavy metal salts such as lead chloride which is a great advantage of this process when it is compared with other pyrometallurgical processes.
The CNT is infused with chloride and when the cartridge is dipped in lead-contaminated water, the lead and chloride react to form lead chloride
molecules in the CNT.
Many of them require the simple precipitation method using barium chloride [2-5] or lead chloride
Scientists from the Louvre Museum and the CNRS Research Institute used an electrode which was one-tenth the thickness of a human hair to look at the effect lead chloride
salt synthesised by Egyptians had on a single cell.
The research was carried out using a tiny electrode, the 10th of the size of a hair, to look at the effect of a lead chloride
synthesised by the Egyptians (laurionite) on a single cell.
He said: "We knew ancients Greeks and Romans too had noted the make-up had medicinal properties, but wanted to determine exactly how." The researchers used a tiny electrode, a 10th of the thickness of a human hair, to look at the effect of lead chloride
salt synthesised by the Egyptians -- laurionite -- on a single cell.
The high correlation between the lead and chloride concentrations in spring 2003 (r = 0.62; p < 0.01) can obviously be explained by the accumulation of lead as lead chloride
in the roadside.
Lead acetate reacts with ferric chloride to produce insoluble white lead chloride
. So when the ferric chloride solution was added to a glass with a bit of lead acetate at the bottom, a white precipitate that passed for milk was produced.
The pregnant solution is cooled to crystallize lead chloride
, followed by precipitation of the remaining metals by scrap iron.
This is also an order of magnitude lower solubility than basic lead chloride
, the most common reaction product of stabilization with lead oxides.
The researchers speculated that these AochemistsAo recognized that when the compound they created was being used in makeup paste, Aotheir bearers were enjoying better health.AoBut Aowhether or not the manufacture of these lead chlorides
was deliberately connected to preventive health care by Egyptians,Ao the researchers wrote, Aoit is clear that such intentional production remains the first known example of a large scale chemic process.AoWPBLOO