Labarraque
(labarak)
The name of Antoine Germain Labarraque (1777–1850), Fr. pharmacist, used in the possessive and with of-adjunct (also in eau de Labarraque) to denote an aqueous solution of sodium hypochlorite used as a bleach and disinfectant, also known as eau de Javelle (see Javelle).
| 1827 Q. Jrnl. Sci., Lit. & Art I. 381 Since the notice which has been taken in this country of Labarraque's liquid, through the public journals, a person has actually forwarded to London the pretended chloride of oxide of sodium in a dry state, so cheap as to undersell the metropolitan chemists. 1863 Richardson & Watts Chem. Technol. (ed. 2) I. iii. 393 Chloride of Soda, or Liquid of Labarraque. This solution may be prepared from liquid chloride of lime by double decomposition with carbonate or sulphate of soda, or by passing chlorine into a solution of caustic soda..or into a solution of carbonate of soda. 1875 Labarraque's Liquor [see Javelle]. 1886 Buck's Handbk. Med. Sci. II. 406/1 In the sick-room, a solution of chloride of lime..is to be recommended, both as a deodorant and as a disinfectant; or Labarraque's solution of hypochlorite of soda..may be substituted for the cheaper preparation. 1939 Thorpe's Dict. Appl. Chem. (ed. 4) III. 64/2 Sodium hypochlorite solution (Eau de Labarraque, usually called Eau de Javelle). 1949 Kirk & Othmer Encycl. Chem. Technol. III. 683 Sodium hypochlorite solution U.S.P. ‘contains not less than 4 per cent and not more than 6 per cent of NaClO’. This has replaced the former more dilute solution called Labarraque's solution. 1951 Labarraque's solution [see Javelle]. |