Silver German

The metal is employed to form numerous alloys with other metals. Brass, nickel silver, typewriter metal, commercial bronze, spring bronze, German silver, soft solder, and aluminum solder are some of the more important alloys. 

Nickel [7440-02-0] Ni, recognized as an element as early as 1754 (1), was not isolated until 1820 (2). It was mined from arsenic sulfide mineral deposits (3) and first used in an alloy called German Silver (4). Soon after, nickel was used as an anode in solutions of nickel sulfate [7786-81 A] NiSO, and nickel chloride [7718-54-9] NiCl, to electroplate jewelry. Nickel carbonyl [13463-39-3] Ni(C02)4, was discovered in 1890 (see Carbonyls). This material, distilled as a hquid, decomposes into carbon monoxide and pure nickel powder, a method used in nickel refining (5) (see Nickel and nickel alloys). 

Copper and tin phosphides are used as deoxidants in the production of the respective metals, to increase the tensile strength and corrosion resistance in phosphor bronze [12767-50-9] and as components of brazing solders (see Solders and brazing alloys). Phosphor bronze is an alloy of copper and 1.25—11 wt % tin. As tin may be completely oxidized in a copper alloy in the form of stannic oxide, 0.03—0.35 wt % phosphoms is added to deoxidize the alloy. Phosphor copper [12643-19-5] is prepared by the addition of phosphoms to molten copper. Phosphor tin [66579-64-4] 2.5—3 wt % P, is made for the deoxidation of bronzes and German silver. 

German silver S.,5S 536 Cypress 0.4,5-0.48 29 Sand-lime brick 1.4-2.2 112... 

The non-ferrous alloys include the misleadingly named nickel silver (or German silver) which contains 10-30% Ni, 55-65% Cu and the rest Zn when electroplated with silver (electroplated nickel silver) it is familiar as EPNS tableware. Monel (68% Ni, 32% Cu, traces of Mn and Fe) is used in apparatus for handling corrosive materials such as F2 cupro-nickels (up to 80% Cu) are used for silver coinage Nichrome (60% Ni, 40% Cr), which has a very small temperature coefficient of electrical resistance, and Invar, which has a very small coefficient of expansion are other well-known Ni alloys. Electroplated nickel is an ideal undercoat for electroplated chromium, and smaller amounts of nickel are used as catalysts in the hydrogenation of unsaturated vegetable oils and in storage batteries such as the Ni/Fe batteries. 

Neu-prtifung, /. new test, reexamination, -rot, n. new red. -rotolung, /. (Dyeing) new red oiling, -rotverfahren, n. new red process, -schdpftmg, /. new creation, -seeland, n. New Zealand, -silber, n. nickel silver, German silver, -steinzeit, /. New Stone Age, Neolithic. 

Elektron Elektron AZM Euzonit 50 Euzonil 505 Euzonit 60 Euzonil 605 Euzonit 70 Euzonit 705 Euzonit 85 Everbrite Everbrile 90 Everdur JOOO Everdur 1010 Ferry-Metal F /k-Silver German silver... 

Many people are fooled when they buy Mexican or German silver jewelry, thinking they are purchasing a semiprecious metal. These forms of silver jewelry go under many names, including Mexican silver, German silver, Afghan silver, Austrian silver, Brazilian silver, Nevada silver, Sonara silver, Tyrol silver, Venetian silver, or just the name silver with quotes around it. None of these jewelry items, under these names or under any other names, contain any silver. These metals are alloys of copper, nickel, and zinc. 

If the solution be now boiled with very-finely levigated German Silver.—A similar alloy is often used as a ... 

Zinc has been nscd for ages to coat iron pails and pipes to prevent them from rusting — "galvanized iron. Zinc is also a part of many alloys (German silver and brass) and is important in the making of dry-cell batteries. 

German silver contains Cu, 50% Ni, 30% Zn. 20%. It is interesting to note that the niekel silvers do not contain silver. 

Apparatus in which fluorine is to be handled at room temperature may be made from a number of metals. Platinum, copper, nickel, magnesium, monel metal, brass, steel, and German silver are all known to be satisfactory. Most of these become coated with a film of fluoride which prevents further corrosion. If the metal is in contact not only with fluorine but also with a liquid such as water or hydrogen fluoride, corrosion frequently becomes troublesome. Under such circumstances, platinum usually behaves in the most satisfactory manner. With the gas alone, brass needle valves may be used with success, but the packing is eventually ruined. Fabrication of apparatus is best accomplished by welding, brazing, or silver soldering. Solder made from lead and tin does not resist attack. 

The alloy of zinc with copper is termed brass, pinchbeck, Muntz metal, and tombac. English brass usually contains 70 per cent, of copper and 30 of zinc. It is made by melting the copper and adding the molten zinc. The addition of nickel (Cu 52 per cent., Zn 23 per cent., Ni 13 per cent.) yields German silver, of which spoons, forks, and coins are made. Electroplate has usually a basis of this alloy, and is covered with silver by depositing it from its double cyanide with potassium. Zinc coated over... 

German silver Cu, 55 Zn, 24 Ni, 20 Hard readily pohshed Substitute for silver... 

Sheffield plate silver is copper with a thin coating of silver. Close plating involves silver foil over iron or steel. German silver actually contains no silver. It is composed of 50% copper, 25% nickel, and 25% zinc, and is often used as a base for electroplating. Paktong is a similar form of nickel-silver that originated in China, for which the ratios of the metals is uncertain. 

Brass (copper + zinc) and bronze (copper + tin) are the most common and widely used alloys of copper. There are many different formulae for these alloys, and the percentages of each metal used varied according to the properties that were desired in the end product, and what was available to the metal workers in a given place. German silver is another copper-based alloy (Cu + Ni + Zn). Lattan is a copper-based alloy used for casting, but the ratios of its component metals are uncertain. 

The electro-deposition of cobalt from either of the foregoing solutions on to brass, iron, steel, copper, tin, lead, Britannia metal, and German silver may be effected under conditions similar to those employed for nickel. The deposit is firm, adherent, hard, and uniform. It is readily buffed to a finished surface having a beautiful lustre, possessing a slightly bluish cast, although beautifully white. 

Nickel finds extensive application in the manufacture of allays such as German silver, constantan, monel metal, invar, and the like. The outbreak of the Great European War in 1914 led to an enormous increase in the production of nickel steels for military and naval purposes. 

Various alloys of nickel and copper are of great industrial importance. The two metals mix in all proportions, the nickel reducing the conductivity and increasing the hardness of the copper. The alloys are variously known as cupro-nickel, nickel bronze, and nickel brass, whilst certain of them have special names such as monel metal, Benedict metal, nickel or German silver, etc. 

SYNS ARGENTUM C.I. 77820 SHELL SILVER SILBER (GERMAN) SILVER ATOM... 

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