hyposulphite

/ ˌhaɪpəˈsʌlfaɪt /

noun

1. another name for sodium thiosulphate, esp when used as a photographic fixer Often shortened tohypo
2. another name for dithionite

Example Sentences

By exposing chemically treated paper to light, and then "fixing" it with a chemical such as hyposulphite of soda, he managed to start publishing his first book of photography, The Pencil of Nature, only three years later.

From BBC

His discovery in 1819 of the solvent power of hyposulphite of soda on the otherwise insoluble salts of silver was the prelude to its use as a fixing agent in photography; and he invented in 1839, independently of Fox Talbot, the process of photography on sensitized paper.

From Project Gutenberg

If the tongue is coated white, mix one drachm of hyposulphite of soda and five drops oil of sassafras in four ounces of syrup made of sugar and hot water, and give a teaspoonful every 1 to 3 hours, as needed, when awake.

From Project Gutenberg

Finding all our efforts to control the pyrexia so unsuccessful, recourse was had in a large proportion of our cases to the hyposulphite of soda, given, dissolved in two ounces of water, in doses of twenty grains every two or three hours.

From Project Gutenberg

Those which enjoy the highest reputation for topical employment are saturated solutions, hot and cold, of the hyposulphite of sodium, of boracic acid, and of the bicarbonate of sodium; salicylic acid; iodoform in powder; and, quite lately, resorcin.

From Project Gutenberg