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词汇 sodium thiosulphate
释义

Definition of sodium thiosulphate in English:

sodium thiosulphate

(also sodium thiosulfate)
noun
mass noun
  • A white soluble compound used in photography as a fixer to dissolve unchanged silver halides.

    硫代硫酸钠。亦称HYPO 1

    Chemical formula: Na₂S₂O₃

    Also called hypo
    Example sentencesExamples
    • One fixative used commonly is sodium thiosulfate.
    • Excess silver is removed by sodium thiosulfate.
    • I should note that the traditional method of fixing prints in a sodium thiosulfate solution for 5 to 10 minutes is perfectly acceptable, so long as fixing and washing times are adequate.
    • Salted paper is usually fixed in a 10% solution of hypo (100 grams of sodium thiosulfate in 1 liter of water) for 10 minutes.
    • The process involves adding a 10% solution of sodium thiosulfate to the second developer.

Definition of sodium thiosulphate in US English:

sodium thiosulphate

nounˌsōdēəm ˌTHīōˈsəlfāt
  • A white soluble compound used in photography as a fixer to dissolve unchanged silver halides.

    硫代硫酸钠。亦称HYPO 1

    Chemical formula: Na₂S₂O₃

    Also called hypo
    Example sentencesExamples
    • Salted paper is usually fixed in a 10% solution of hypo (100 grams of sodium thiosulfate in 1 liter of water) for 10 minutes.
    • I should note that the traditional method of fixing prints in a sodium thiosulfate solution for 5 to 10 minutes is perfectly acceptable, so long as fixing and washing times are adequate.
    • The process involves adding a 10% solution of sodium thiosulfate to the second developer.
    • One fixative used commonly is sodium thiosulfate.
    • Excess silver is removed by sodium thiosulfate.
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