hyposulfite of soda

hyposulfite of soda

      most important salt of thiosulfuric acid, an unstable compound of sulfur (q.v.).

* * *


Universalium. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • Timeline of photography technology — * 1826 Nicéphore Niépce takes the first permanent photograph, a landscape that required an eight hour exposure. * 1835 William Fox Talbot produces early permanent photographs through his own process. * 1839 Louis Daguerre patents the… …   Wikipedia

  • Hippolyte Bayard — (January 20 1801 May 14 1887) was one of the earliest photographers in the history of photography, inventing his own photography process known as direct positive printing and presenting the world s first public exhibition of photographs on June… …   Wikipedia

  • History of photography — The first permanent photograph was an image produced in 1826[1] by the French inventor Joseph Nicéphore Niépce.[2] …   Wikipedia

  • Herschel, Sir John, 1st Baronet — ▪ English scientist Introduction born March 7, 1792, Slough, Buckinghamshire, Eng. died May 11, 1871, Collingwood, Kent  English astronomer and successor to his father, Sir William Herschel, in the field of stellar and nebular observation and… …   Universalium

  • sodium — /soh dee euhm/, n. 1. Chem. a soft, silver white, metallic element that oxidizes rapidly in moist air, occurring in nature only in the combined state, and used in the synthesis of sodium peroxide, sodium cyanide, and tetraethyllead: a necessary… …   Universalium

  • sodium — A metallic element, atomic no. 11, atomic wt. 22.989768; an alkali metal oxidizing readily in air or water; its salts are found in natural biologic systems and are extensively used in medicine and industry. The s. ion is the most plentiful… …   Medical dictionary

  • Sodium thiosulfate — Sodium thiosulfate …   Wikipedia

  • soude — [ sud ] n. f. • soulde 1527; lat. médiév. soda, ar. suwwâd 1 ♦ Chim. Soude caustique : hydroxyde de sodium (NaOH). Solution, lessive de soude. 2 ♦ Soude (du commerce) ou soude Solvay : carbonate de sodium (Na2CO3). Cristaux de soude. Qui contient …   Encyclopédie Universelle

  • soudé — soude [ sud ] n. f. • soulde 1527; lat. médiév. soda, ar. suwwâd 1 ♦ Chim. Soude caustique : hydroxyde de sodium (NaOH). Solution, lessive de soude. 2 ♦ Soude (du commerce) ou soude Solvay : carbonate de sodium (Na2CO3). Cristaux de soude. Qui… …   Encyclopédie Universelle

  • SODIUM — Le sodium est le plus courant des éléments alcalins. Son nom dérive de l’arabe soda , qui désignait le mélange de carbonates alcalins extrait des cendres de végétaux. Le symbole Na vient de son appellation allemande Natrium , qui dérive de… …   Encyclopédie Universelle

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”