In 1841 Pattinson patented two other chemical processes, one for making lead carbonate, and the other for manufacturing " magnesia alba ", a white magnesium oxide.
12.
A basic lead carbonate ( white lead ), lead carbonate, barium sulfate, calcium carbonate ( chalk ), and chromium ( III ) oxide ( chrome green ).
13.
A basic lead carbonate ( white lead ), lead carbonate, barium sulfate, calcium carbonate ( chalk ), and chromium ( III ) oxide ( chrome green ).
14.
Two of the first synthetic pigments were white lead ( basic lead carbonate, ( PbCO 3 ) 2 Pb ( OH ) 2 ) and blue frit ( Egyptian Blue ).
15.
If the litharge is white in color ( lead carbonate ) the material is mostly non-porous and may not easily be preserved, meaning that full litharge replacement might be necessary.
16.
Historically, the primary use of lead oxychlorides was in a mixture with other lead compounds ( e . g . lead carbonate " white lead " ) as a pigment in lead paints.
17.
He was not aware that the mineral he was exposing was cerussite, a lead carbonate, but some of the pieces contained galena, which he recognised from his time at Broken Hill.
18.
The glass powder is still sometimes mixed with the chalk and battery plate powder, but is often mixed with lead carbonate ore, carbon oxide and cobalt oxide to achieve many of the traditional glazes.
19.
To protect users from lead-- and because this decomposition can occur at many moderate temperatures-- manufactures may protect the lead carbonate layer with a resin or polymer that is degraded under steam at high temperature.
20.
The sealed shipment process was developed following issues with the bulk loading of lead carbonate concentrate at the Port of Esperance in 2006 / 07, which resulted in fugitive dust emissions, and the Magellan Mine being placed on care and maintenance in 2007.
