Painters' Colours, Oils, and Varnishes: A Practical ManualC. Griffin, limited, 1901 - 504 pagina's |
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Pagina 46
... filtering off the precipitate of lead sulphate thus obtained , no further precipitate should be obtained on suc- cessively adding ammonia , ammonium sulphide , and ammonium oxalate to the filtrate . A white precipitate with ammonium ...
... filtering off the precipitate of lead sulphate thus obtained , no further precipitate should be obtained on suc- cessively adding ammonia , ammonium sulphide , and ammonium oxalate to the filtrate . A white precipitate with ammonium ...
Pagina 47
... filter - paper ash , the difference is the weight of the insoluble residue . To the filtrate add dilute sulphuric acid and a little alcohol , filter off the precipitate of lead sulphate which is obtained , wash it dry and burn it in a ...
... filter - paper ash , the difference is the weight of the insoluble residue . To the filtrate add dilute sulphuric acid and a little alcohol , filter off the precipitate of lead sulphate which is obtained , wash it dry and burn it in a ...
Pagina 48
... filter paper and placed in a Soxhlet or other form of fat - extractor and the oil extracted by means of petroleum ether ; the ethereal solution is then run into a weighed glass , the ether evaporated off and the oil weighed . If a fat ...
... filter paper and placed in a Soxhlet or other form of fat - extractor and the oil extracted by means of petroleum ether ; the ethereal solution is then run into a weighed glass , the ether evaporated off and the oil weighed . If a fat ...
Pagina 50
... filter , and dried ; after which it is ready for use as a pigment , or can be combined with other white pigments if desired . = The acetic acid used should be as pure as possible ; the usual commercial variety of a strength of about ...
... filter , and dried ; after which it is ready for use as a pigment , or can be combined with other white pigments if desired . = The acetic acid used should be as pure as possible ; the usual commercial variety of a strength of about ...
Pagina 62
... filter . It is not necessary to dry them . When as much water has drained from them as possible , the mass is thrown into a crucible and heated to a white heat for some time , when a bright yellow residue of zinc oxide is left in the ...
... filter . It is not necessary to dry them . When as much water has drained from them as possible , the mass is thrown into a crucible and heated to a white heat for some time , when a bright yellow residue of zinc oxide is left in the ...
Overige edities - Alles bekijken
Painters' Colours, Oils, and Varnishes: a Practical Manual George Henry Hurst Volledige weergave - 1892 |
Painters' Colours, Oils, and Varnishes: a Practical Manual George Henry Hurst Volledige weergave - 1892 |
Painters' Colours, Oils, and Varnishes: A Practical Manual George Henry Hurst Geen voorbeeld beschikbaar - 2016 |
Veelvoorkomende woorden en zinsdelen
acetate of lead acetic acid added alcohol alkali alum alumina ammonia analysis ASSAY barium barium chloride barytes bichromate body boiling calcining calcium carbonic acid caustic soda cent chamber CHARLES GRIFFIN china clay chloride chromate chrome chrome-yellow coal-tar cobalt colouring matters colouring power composition contain copal copper covering power dissolved distillation dried driers drying dyestuffs Engineer EXETER STREET ferric filter flue furnace gallons green grinding heat hydrochloric acid insoluble iron lake lead acetate linseed oil liquor litharge manganese mass material method mill mixed mixture obtained ochre orange oxide paint pale patent petroleum pigment placed potash potassium precipitate prepared properties proportion Prussian blue residue resin rosin salt sample sandarac shade silica small quantities sodium soluble solution specific gravity spirit steam sulphide sulphuric acid tanks temperature tint turpentine ultramarine usually varies variety varnish washed white lead yellow zinc white