10 LIVRES EN ROUMAIN EN RAPPORT AVEC «A PLATINÁ»
Découvrez l'usage de
a platiná dans la sélection bibliographique suivante. Des livres en rapport avec
a platiná et de courts extraits de ceux-ci pour replacer dans son contexte son utilisation littéraire.
1
Philosophical Magazine - Volumul 40 - Pagina 275
pounded at a red heat in a platina crucible, and afforded 7-2 grains of platina ; probably, a little moisture might have occasioned the slight difference in this experiment. All these experiments very nearly agree : as the second and third afford the ...
2
Encyclopædia Metropolitana; Or, Universal Dictionary of ...
Process of manufac Finiabing furnace. Manufactures. Method of refmingtht saltpetre. The sul- hiir. Charcoal. Powder-. witli their edges downwards by a piece of platina wire, which, being bent in the middle at an angle and stretched across the ...
Edward Smedley, Hugh James Rose, Henry John Rose, 1845
3
Journal of Natural Philosophy, Chemistry and the Arts: ... - Pagina 15
Theory would certainly give a general preference to platina, from its resistance both to heat and to acids j and practice willjustify this preference, in all but a single instance. If a quantity of potash be kept for fome time in fu- p]atini is pre- sion, ...
4
A Journal of Natural Philosophy, Chemistry and the Arts - Pagina 229
To obtain a more satisfactory proof of the presence of sulphur, forty grains of charred expectorated matter were kept in a state of ignition in a platina crucible, with another ipverted over it to exclude completely the escape of gas, for two hours.
5
Iron: An Illustrated Weekly Journal for Iron and Steel ...
One of the glass tubes contains an iron float, armed at top with a platina point. A metal standard attached to, but insulated from the boiler, carries at top a sliding piece capable of being adjusted to any height by means of a set screw. A plate ...
Sholto Percy, Perry Fairfax Nursey, 1849
6
Mechanics Magazine - Volumul 50 - Pagina 379
One of the glass – tubes contains an iron float, armed at top with a platina point. A metal standard attached to, but insulated from the boiler, carries at top a sliding piece capable of being adjusted to any height by means of a set screw. A plate ...
John I Knight, Henry Lacey, 1849
7
A Dictionary of Chemistry and Mineralogy: With Their ... - Pagina 686
To prevent the blistering of the platina by heat, which is the usual defect of this metal in its manufactured state, it is essential to expose the cake to the most intense heat that a wind furnace can be made to receive, more intense than the platina ...
8
A Dictionary of Chemistry: on the basis of Mr. ... - Pagina 686
To prevent the blistering of the platina by heat, which is the usual defect of this metal in its manufactured state, it is essential to expose the cake to the most intense heat that a wind furnace can be made to receive, more intense than the platina ...
9
A dictionary of chemistry and mineralogy, with their ... - Pagina 686
To prevent the hlistering of the platina hy heat, which is the usual defect of this metal in its manufactured state, it is essential to expose the cake to the most intense heat that a wind furnace can he made to receive, more intense than the platina ...
Andrew Ure, William Nicholson, 1835
10
A catechism of chemistry: exhibiting a condensed view of ... - Pagina 182
How is platina procured ? Platina is found in grains, in a metallic state, at St. Domingo, and at Santa Fe in Peru ; it is also found in considerable quantity in the Ural Mountains in Russia.3 21. What is the nature of platina? * Charles Wood was ...
