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Sodium Thiosulphate

Noun: Sodium thiosulphate is a compound with the chemical formula Na₂S₂O₃, commonly used in photography as a fixing agent to remove unexposed silver halides from photographic emulsions.

Example sentence: I added a few drops of sodium thiosulphate to the developing solution to ensure proper fixation of the photograph.

Noun: Sodium thiosulphate is also known as sodium hyposulphite and is used as an antidote for cyanide poisoning.

Example sentence: The paramedics administered sodium thiosulphate to the patient in order to counteract the effects of cyanide.

Adjective: Sodium thiosulphate solution is a popular choice for amateur photographers as it is an affordable and effective method of photo fixation.

Example sentence: The photography instructor recommended using a sodium thiosulphate solution to fix the prints quickly and efficiently.

Adjective: In local chemistry labs, sodium thiosulphate is commonly used for various experiments to determine reaction rates.

Example sentence: The students conducted an experiment using sodium thiosulphate to investigate the effects of temperature on reaction rates.