Search results
Results from the WOW.Com Content Network
The alloy used contained 80% silver and 20% copper. [7] 88 zolotnik Russian silver has the equivalent millesimal fineness of 916[6]. The alloy contains 91.66% pure silver and 8.34% copper or other metals. (The description of the zolotnik is above.) [4] [8] Coin silver has a millesimal fineness of 900. The term "coin silver" was derived from the ...
The magnet test is an easy way to find out if your ring is made of real metal. Gold and silver aren’t magnetic, whereas gold-plated jewelry has metal underneath. Find a strong magnet and place ...
Sodium chloride (NaCl) or common table salt is known to corrode silver-copper alloy, typically seen in silver salt shakers where corrosion appears around the holes in the top. Several products have been developed for the purpose of polishing silver that serve to remove sulfur from the metal without damaging or warping it.
A Tutton salt is a double sulfate of the typical formula X 2 SO · 4 Y SO 4 ·6H 2 O, where X is a monovalent cation, and Y a divalent metal ion. Double sulfates of the composition X 2 SO 4 ·2 Y SO 4, such that X is a monovalent cation and Y is a divalent metal ion are referred to as langbeinites, after the prototypical potassium magnesium ...
Au 5 Al 2 typically forms at 95% of Au and 5% of Al by mass, its melting point is about 575 °C, which is the lowest among the major gold-aluminum intermetallic compounds. AuAl 2 is a brittle bright-purple compound, with a composition of about 78.5% Au and 21.5% Al by mass.
Salt/common salt – a mineral, sodium chloride, NaCl, formed by evaporating seawater (impure form). Salt of tartar – potassium carbonate; also called potash. Salt of hartshorn/sal volatile – ammonium carbonate formed by distilling bones and horns. Tin salt – hydrated stannous chloride; see also spiritus fumans, another chloride of tin.
Mohr's salt, ammonium iron(II) sulfate, [NH 4] 2 [Fe(H 2 O) 6](SO 4) 2.. A double salt is a salt that contains two or more different cations or anions.Examples of double salts include alums (with the general formula M I M III (SO 4) 2 ·12H 2 O) and Tutton's salts (with the general formula (M I) 2 M II (SO 4) 2 ·6H 2 O). [1]
Aluminium–copper alloys (AlCu) are aluminium alloys that consist largely of aluminium (Al) and traces of copper (Cu) as the main alloying elements. Important grades also contain additives of magnesium , iron , nickel and silicon ( AlCu(Mg, Fe, Ni, Si) ), often manganese is also included to increase strength (see aluminium-manganese alloys ).