Painters' Colours, Oils, and Varnishes: A Practical ManualC. Griffin, limited, 1901 - 504 pagina's |
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Pagina 44
... sulphur compounds . By oxidation this black sulphide can be transformed into the white sulphate of lead ; the only agent which can be safely used for this purpose in restoring paintings which have become discoloured is peroxide of ...
... sulphur compounds . By oxidation this black sulphide can be transformed into the white sulphate of lead ; the only agent which can be safely used for this purpose in restoring paintings which have become discoloured is peroxide of ...
Pagina 52
... sulphur dioxide . Secondly , during the operation of lead smelting a large pro- portion of the lead is carried off in the form of " fume , " which collects in large chambers or flues built for the purpose . lead - fume is a mixture of ...
... sulphur dioxide . Secondly , during the operation of lead smelting a large pro- portion of the lead is carried off in the form of " fume , " which collects in large chambers or flues built for the purpose . lead - fume is a mixture of ...
Pagina 55
... sulphur in the ore or lead used is deficient , with some pyrites , as it is necessary that a large quantity of sulphurous acid ( sulphur dioxide ) gas should be produced . This mixture is placed in a kind of cupola furnace provided with ...
... sulphur in the ore or lead used is deficient , with some pyrites , as it is necessary that a large quantity of sulphurous acid ( sulphur dioxide ) gas should be produced . This mixture is placed in a kind of cupola furnace provided with ...
Pagina 57
... sulphur dioxide , and having the formula PbSO . It was first proposed to be used as a pigment in 1850 by Dr. John Scoffern , who took out a patent for its production and use for painting . The process he describes for its preparation is ...
... sulphur dioxide , and having the formula PbSO . It was first proposed to be used as a pigment in 1850 by Dr. John Scoffern , who took out a patent for its production and use for painting . The process he describes for its preparation is ...
Pagina 62
... effervescence , giving colourless solutions . It is also soluble in ammonia and alkaline solutions . It is unchanged by exposure to air and light , and sulphur or sulphur gases have no visible action on it , 62 WHITE PIGMENTS .
... effervescence , giving colourless solutions . It is also soluble in ammonia and alkaline solutions . It is unchanged by exposure to air and light , and sulphur or sulphur gases have no visible action on it , 62 WHITE PIGMENTS .
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