What does thiosulphate mean?
Thiosulphate refers to a type of salt derived from thiosulfuric acid, a compound containing sulfur. It has various applications, most notably as a photographic fixer, where it helps stabilize and preserve developed film and photographic paper by removing residual light-sensitive silver halides. In analytical chemistry, thiosulphate solutions are used in titrations and as a reagent in various chemical tests. The term 'thiosulphate' is predominantly used in British English, with 'thiosulfate' being the preferred spelling in American English. Understanding thiosulphate is essential for those studying chemistry, photography, or related fields.
nounA salt of thiosulfuric acid, typically used as a photographic fixer or in analytical chemistry.
- A salt of thiosulfuric acid
- A chemical compound used in photography and analytical chemistry
"The photographer used a solution of sodium thiosulphate to fix the developed film."
"The lab technician carefully prepared a solution of thiosulphate for the experiment."
"Thiosulphate is commonly used in the fixation of photographic images."
The plural form is used when referring to multiple types or samples of thiosulphate salts.
"The laboratory stored several thiosulphates for different experiments."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Etymology of thiosulphate
The term 'thiosulphate' originates from the Greek words 'thios', meaning sulfur, and 'sulphate', derived from 'sulfur'. The prefix 'thio-' indicates the presence of sulfur in a compound. Historically, the term has evolved from early studies in chemistry where scientists identified and named various sulfur-containing compounds.
How thiosulphate is actually used
In British English, the preferred spelling is 'thiosulphate', while in American English, it is often spelled as 'thiosulfate'.