fluorure d'hydrogène

Traductions

• anglais

  Date : 1983

  Définition

  A compound of hydrogen and fluorine (formula HF) which is extremely corrosive to organic tissue; any direct contact or inhalation can cause burns and internal injury. It is produced in tonnage quantities by the reaction of sulfuric acid on fluorspar (CaF₂). It is gaseous above 19.5 °C (70 °F) and liquid below thatpoint.
  
  Condensation and polymerisation catalyst and fluorinating agent for fluorocarbons.

  Notes :

  Its major uses are as a catalyst and fluorinating agent. Solution of the gas or liquid in wtter from 20 to 70% produces hydrofluoric acid, one of the strongest acids known. It s ability to attack glass account for its use in roughening and etching panels, bottles, graduates, and other glass products; it is also used in metal treatment and as a fluorine source. It should be handled with proper protective equipment.
  
  Hydrogen fluoride, anhydrous.

  Terme :

  1. hydrogen fluoride