Chemical Technology: Or, Chemistry, Applied to the Arts and to Manufactures, Volume 2Lea and Blanchard, 1849 - Chemistry, Technical |
From inside the book
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Page 19
... bottom , whilst the bubbles of gas escape from the surface . At a lively red heat , on the contrary , melted glass is an exceedingly tough , thick mass , possessing great ductility and capable of being drawn out into the finest threads ...
... bottom , whilst the bubbles of gas escape from the surface . At a lively red heat , on the contrary , melted glass is an exceedingly tough , thick mass , possessing great ductility and capable of being drawn out into the finest threads ...
Page 20
... the pot at the end of the pipe , and slightly inflated into the form of a long thin phial , with a very thick bottom , which is rapidly cooled in the air . Dumas found in bottle - glass devitrified by Darcet : 20 DEVITRIFICATION .
... the pot at the end of the pipe , and slightly inflated into the form of a long thin phial , with a very thick bottom , which is rapidly cooled in the air . Dumas found in bottle - glass devitrified by Darcet : 20 DEVITRIFICATION .
Page 33
... bottom of the vessels . Saltpetre re- acts before the glass enters into perfect fusion ; arsenious acid , arsenic acid , and their salts , exert their action at a temperature above the fusing point , and are volatilized as arsenic or ...
... bottom of the vessels . Saltpetre re- acts before the glass enters into perfect fusion ; arsenious acid , arsenic acid , and their salts , exert their action at a temperature above the fusing point , and are volatilized as arsenic or ...
Page 34
... bottom of the pots and in the centre of the fur- nace , but stretching through its whole length . The sides of the fur- nace are a little higher than the top of the pot , and the arch , or crown , is made as low as possible , to be ...
... bottom of the pots and in the centre of the fur- nace , but stretching through its whole length . The sides of the fur- nace are a little higher than the top of the pot , and the arch , or crown , is made as low as possible , to be ...
Page 35
... turn- ed up on the edges , and spread out on a wooden board . This mass is the bottom of the pot , and the outer edges thus turned up , form the commencement of Fig . 2 . . the sides or wall of the pot . The workman. GLASS - POTS . 35.
... turn- ed up on the edges , and spread out on a wooden board . This mass is the bottom of the pot , and the outer edges thus turned up , form the commencement of Fig . 2 . . the sides or wall of the pot . The workman. GLASS - POTS . 35.
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Common terms and phrases
action alkali alum alumina apertures borax bottom bricks burning burnt calcined carbonate of lime carbonic acid cement cent chemical chloride coal cobalt color composed composition consequently consists contain cooling copper crystals cylinder decomposed dissolved earthenware easily employed equivs evaporation feet felspar fire flame flint-glass fuel furnace fusible fusion glaze green vitriol ground gypsum hydraulic inches ingredients kaolin kiln kind latter layer limestone liquor magnesia manganese manner manufacture mass melted metal mixed mixture mortar mould obtained operation ordinary oxide of iron particles pieces pipe placed plastic clay plate porcelain portion potash pots powder precipitated prepared produced proportion Protoxide of iron purple of Cassius quantity quartz red heat removed render reverberatory furnace salt sand seggars Sèvres shaft side silica slaked soda solution stone stone-ware substance sulphate sulphate of alumina sulphuret sulphuric acid surface temperature thickness tiles trace vessels ware workman
Popular passages
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