from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See sodium thiosulfate.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The SO22- oxyanion; any salt containing this ion
- n. The thiosulfate anion and salts
Sorry, no etymologies found.
Color removers, manufactured by dye manufacturers, contain sodium hydrosulfite Na2S2O4—also called “sodium hyposulfite”.
Measure 10 c.c. of the clear liquid and add 20 c.c. of a 10\% solution of potassium iodide, 2 c.c. of acetic acid or hydrochloric acid, then put drop by drop into the mixture a decinormal solution of sodium hyposulfite (2. 48\%) until decoloration.
The number "N" of cubic centimeters of hyposulfite employed multiplied by 1,775 will give the weight "N" of active chloride contained in 100 grammes of chloride of lime.
(first paper negative, first photograph, on metal) Joseph Nicéphore Niepce, France, 1816-1827; (discovery of fixative powers of hyposulfite of soda)