Workshop Receipts ...E. & F. N. Spon, 1883 |
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Página 19
Chinese Silver . - 55.2 parts cop- per , 19.5 zc , 13 nickel , 2-5 silver , and 12 cobalt of iron . - Hard White Metal . - Sheet brass , 32 oz .; lead , 2 oz .; tin , 2 oz .; zinc , 1 oz . Metal for Taking Impres- sions . - Lead , 3 lbs ...
Chinese Silver . - 55.2 parts cop- per , 19.5 zc , 13 nickel , 2-5 silver , and 12 cobalt of iron . - Hard White Metal . - Sheet brass , 32 oz .; lead , 2 oz .; tin , 2 oz .; zinc , 1 oz . Metal for Taking Impres- sions . - Lead , 3 lbs ...
Página 28
... Silver Cleaning Liquid . — Pre- tion of it ; elevate one end of the board , pared chalk , 8 oz .; turpentine , 2 oz .; alco- so that it may form an angle of about hol , 1 oz .; spirits of camphor , 4 drachms ; 45 or 50 degrees with the ...
... Silver Cleaning Liquid . — Pre- tion of it ; elevate one end of the board , pared chalk , 8 oz .; turpentine , 2 oz .; alco- so that it may form an angle of about hol , 1 oz .; spirits of camphor , 4 drachms ; 45 or 50 degrees with the ...
Página 49
... silver ; 1 , white - lead . Put the whole of these in- gredients into an earthenware mortar , and triturate them until the whole is amalgamated ; the mercury being the sol- vent fluid , very readily combines with the rest , to which it ...
... silver ; 1 , white - lead . Put the whole of these in- gredients into an earthenware mortar , and triturate them until the whole is amalgamated ; the mercury being the sol- vent fluid , very readily combines with the rest , to which it ...
Página 50
... silver , which will much assist to raise the colour and beauty of the purple ; to help the precipitation of the gold from its solvent ( provided the precipi- tation does not immediately take place ) add a large proportion of boiling ...
... silver , which will much assist to raise the colour and beauty of the purple ; to help the precipitation of the gold from its solvent ( provided the precipi- tation does not immediately take place ) add a large proportion of boiling ...
Página 51
... silver lustre , being less resplendent , having more solidity and whiteness , and a very similar appearance to silver . On all white earthenware the platina in solution is perfectly sufficient to produce a silver lustre . place it on a ...
... silver lustre , being less resplendent , having more solidity and whiteness , and a very similar appearance to silver . On all white earthenware the platina in solution is perfectly sufficient to produce a silver lustre . place it on a ...
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Termos e frases comuns
allowed alum ammonia antimony applied bath blue boiling borax bottle brass brush burnished calcined carbonate chloride clean cloth coat cold collodion colour cool copper covered cyanide deposit diluted dipped dissolved dried edge filter fire fustic gallons gelatine gilding glass glaze glue gold grains ground gutta-percha heat hydrochloric acid immersed inch iron leather lime linseed oil liquid liquor litharge logwood marble melted mercury metal mixed mixture mould nitrate nitrate of silver nitric acid oxide paint paper pearlash piece pint plate polish potash powder precipitate prepared pure quantity removed sal ammoniac salt seed-lac shellac soap soda soft solder solution spirits of wine stirring stone sufficient sulphate sulphuric acid surface thick thin tint tion turpentine varnish vessel warm wash white-lead wire wood yellow zinc
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