Swiss franc

The franc (sign: Fr. or SFr. or FS; German: Franken, French and Romansh: franc, Italian: franco; code: CHF) is the currency and legal tender of Switzerland and Liechtenstein; it is also legal tender in the Italian exclave Campione d'Italia. The Swiss National Bank (SNB) issues banknotes and the federal mint Swissmint issues coins.

The smaller denomination, a hundredth of a franc, is a Rappen (Rp.) in German, centime (c.) in French, centesimo (ct.) in Italian, and rap (rp.) in Romansh. The ISO code of the currency used by banks and financial institutions is CHF, although "Fr." is used by most businesses and advertisers; some use SFr.; the Latinate "CH" stands for Confoederatio Helvetica.

Given the different languages used in Switzerland, Latin is used for language-neutral inscriptions on the coins.

History

Before the Helvetic Republic

Before 1798, about 75 entities were making coins in Switzerland, including the 25 cantons and half-cantons, 16 cities, and abbeys, resulting in about 860 different coins in circulation, with different values, denominations and monetary systems.

Fluoroform

Fluoroform is the chemical compound with the formula CHF₃. It is one of the "haloforms", a class of compounds with the formula CHX₃ (X = halogen). Fluoroform is used in diverse niche applications and is produced as a by-product of the manufacture of Teflon. It is also generated biologically in small amounts apparently by decarboxylation of trifluoroacetic acid.

Synthesis

Fluoroform was first obtained by Maurice Meslans in the violent reaction of iodoform with dry silver fluoride in 1894. The reaction was improved by Otto Ruff by substitution of silver fluoride by a mixture of mercury fluoride and calcium fluoride. The exchange reaction works with iodoform and bromoform, and the exchange of the first two halogen atoms by fluorine is vigorous. By changing to a two step process, first forming a bromodifluoro methane in the reaction of antimony trifluoride with bromoform and finishing the reaction with mercury fluoride the first efficient synthesis method was found by Henne.

Industrial applications

CHF

CHF is the ISO currency code for the Swiss franc.

CHF may also refer to: