cupro - definitie. Wat is cupro
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Wat (wie) is cupro - definitie

ALLOY OF COPPER THAT CONTAINS NICKEL AND STRENGTHENING ELEMENTS
Copper nickel; Cupro-nickel; Cupro nickel; Copper-nickel; White copper; White Copper; Coppernickel; Copper–nickel; Copper Nickel
  • Five Swiss francs
  • Crack in 90–10 Cu–Ni metal plate due to stresses during silver brazing
  • ILO]].

cupro         
  • Brown cupra (also known as cupro or Bemberg) fabric made of rayon
  • cuprammonium hydroxide]] comes into contact with sulfuric acid, the cellulose begins to precipitate from the solution. The sulfuric acid reacts with a complex compound of copper and dissolves it. Thin blue fibers of rayon are formed. After some time, sulfuric acid reacts with the complex compound and washes out the copper salts from the fibers. The fibers become colorless.
REGENERATED FIBRE FROM CELLULOSE DISSOLVED IN CUPRAMMONIUM SOLUTION
Cupro
['k(j)u:pr??]
¦ noun a type of rayon made by dissolving cotton cellulose with cuprammonium salts and spinning the resulting solution into filaments.
Origin
1980s: an invented word, prob. from cuprammonium.
Cuprammonium rayon         
  • Brown cupra (also known as cupro or Bemberg) fabric made of rayon
  • cuprammonium hydroxide]] comes into contact with sulfuric acid, the cellulose begins to precipitate from the solution. The sulfuric acid reacts with a complex compound of copper and dissolves it. Thin blue fibers of rayon are formed. After some time, sulfuric acid reacts with the complex compound and washes out the copper salts from the fibers. The fibers become colorless.
REGENERATED FIBRE FROM CELLULOSE DISSOLVED IN CUPRAMMONIUM SOLUTION
Cupro
Cuprammonium rayon is a rayon fiber made from cellulose dissolved in a cuprammonium solution, Schweizer's reagent.
cupro-nickel         
¦ noun an alloy of copper and nickel, especially in the proportions 3:1 as used in 'silver' coins.

Wikipedia

Cupronickel

Cupronickel or copper-nickel (CuNi) is an alloy of copper that contains nickel and strengthening elements, such as iron and manganese. The copper content typically varies from 60 to 90 percent. (Monel is a nickel-copper alloy that contains a minimum of 52 percent nickel.)

Despite its high copper content, cupronickel is silver in colour. Cupronickel is highly resistant to corrosion by salt water, and is therefore used for piping, heat exchangers and condensers in seawater systems, as well as for marine hardware. It is sometimes used for the propellers, propeller shafts, and hulls of high-quality boats. Other uses include military equipment and chemical, petrochemical, and electrical industries.

Another common 20th-century use of cupronickel was silver-coloured coins. For this use, the typical alloy has 3:1 copper to nickel ratio, with very small amounts of manganese.

In the past, true silver coins were debased with cupronickel, such as coins of the pound sterling from 1947 onward having their content replaced.