sodium thiosulphate in English

noun
1
a white soluble compound used in photography as a fixer to dissolve unchanged silver halides.
Excess silver is removed by sodium thiosulfate .
noun

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1. Sodium thiosulphate, 0,01 mol/l (equivalent to 0,01 N) accurately standardised aqueous solution, standardised just before use.

2. Acidify with # ml of HCl (#.#) and determine the excess iodine with a standard sodium thiosulphate solution (#.#), using starch solution (#.#) as indicator

3. Acidify with # ml of HCl (#.#) and titrate the excess standard iodine solution with standard sodium thiosulphate solution (#.#), using starch solution (#.#) as indicator

4. Acidify with 11,00 ml of HCl ( 5.2.11 ) and titrate the excess standard iodine solution with standard sodium thiosulphate solution ( 5.2.15 ), using starch solution ( 5.2.13 ) as indicator .

5. The actual concentration is determined by adding an excess of iodine to an aliquot of the solution and back titrating with standardized sodium thiosulphate solution (see Annex B).

6. GLOSSARY OF AGARS, BROTHS AND OTHER REAGENTS SECTION N Neutralizing Buffer (Environmental sampling) Basal Medium Potassium phosphate monobasic Sodium thiosulphate Aryl sulfonate complex Sodium hydroxide (NaOH) Distilled water pH 7.2 ± 0.2 Complete Medium:

7. Titration of the adsorbed iodine can be conducted in a medium of optimum iodide and starch concentration, the colour change due to adding one microlitre aliquots of N/560 sodium thiosulphate, being detectable.

8. The mineral supplement may be prepared by mixing 45 parts finely powdered sterilized bonemeal , 10 parts ground chalk , 12 parts dical - cium phosphate , 30 parts common salt , half a part of yellow oxide of iron , 2.25 parts of potassium iodide , 0.75 parts sodium carbonate , 0.75 parts starch , and 1.75 parts sodium thiosulphate .

9. A method for straightening and colouring keratinous fibres, comprising the following steps: A) treating the fibres with a straightening composition (G), B) treating the fibres with a conditioner (K), C) treating the fibres with a colorant (F); the straightening composition (G) comprises at least one alkalifying agent from the group consisting of sodium hydroxide, potassium hydroxide, lithium hydroxide, magnesium hydroxide, calcium hydroxide and/or guanidinium hydroxide, the conditioner (K) and/or the colorant (F) comprises at least one reducing agent from the group consisting of thiolactic acid, thioglycolic acid, cysteine, sodium sulphide, sodium sulphite, sodium thiosulphate, sodium dithionite and/or cosmetically tolerated salts thereof, and the colorant (F) comprises at least one direct acid dye.