Photographers' Formulary 10g Anhydrous Sodium Thiosulfate

SKU: PYSTHA10G MFR: 10-1370 10G
$3.95
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Key Features

  • Achieve archival quality prints with our premium Sodium Thiosulfate, ensuring lasting memories.
  • Enjoy consistent results in your darkroom; this high-purity chemical guarantees reliable performance.
  • Fine grain development is now easier! Dilute our Sodium Thiosulfate for optimal image clarity.
  • Use as a fixer in your film processing for high contrast and beautifully detailed black & white photos.
  • This versatile darkroom chemical boasts a long shelf-life, ready when you need it for your projects.
  • Perfect for creating custom fixing baths, ensuring your prints are stable and long-lasting.
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Special Order?Estimated to Ship: 08/19/2025

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Photographers' Formulary Sodium Thiosulfate Specifications

  • Synonyms

    Antichlor
    Hypo
    Hyposulfite of soda
    Sodium hyposulfite
    Sodium subsulfite
    Sodium thiosulfate, pentahydrate
    Thiosulfuric acid, disodium salt, pentahydrate

  • Appearance

    Large white monoclinic, colorless crystals and powder
    Odorless

  • Uses

    In preparation of fixing baths
    Ingredient in various reducers

  • Chemical Formula

    Na2S2O3.5H2O

  • Weight

    10g (0.35oz)

About Photographers' Formulary Sodium Thiosulfate

How can you enhance your photography development process Consider the 10g Anhydrous Sodium Thiosulfate from the trusted brand, Photographers' Formulary. This high-quality, pure chemical is specifically designed for professional photography applications, offering reliable and effective results every time.

Anhydrous Sodium Thiosulfate is a key ingredient in the preparation of fixing baths, playing a crucial role in the development of black and white film. It's also a valuable component in various reducers, making it a versatile addition to your photography toolkit.

Unlike its counterpart, crystalline hypo, Anhydrous Sodium Thiosulfate does not lower the water temperature significantly when dissolved. This makes it a more convenient choice for photographers, as it requires less heat to mix effectively. When using this anhydrous salt, start with water of at least 90°F/32°C for optimal results.

Remember, if you're substituting crystalline hypo, use 64% of the Anhydrous Sodium Thiosulfate for a comparable effect. Elevate your photography process with this professional-grade, effective, and reliable chemical.

Photographers' Formulary Sodium Thiosulfate Features

  • High-quality Anhydrous Sodium Thiosulfate for professional photography applications
  • Effective ingredient in the preparation of fixing baths for black and white film development
  • Versatile component in various reducers, enhancing your photography toolkit
  • Doesn't significantly lower water temperature when dissolved, unlike crystalline hypo
  • Requires water of at least 90°F/32°C for optimal mixing, ensuring consistent results
  • Substitute for crystalline hypo at 64% usage, offering a convenient alternative

Key Features

  • Achieve archival quality prints with our premium Sodium Thiosulfate, ensuring lasting memories.
  • Enjoy consistent results in your darkroom; this high-purity chemical guarantees reliable performance.
  • Fine grain development is now easier! Dilute our Sodium Thiosulfate for optimal image clarity.
  • Use as a fixer in your film processing for high contrast and beautifully detailed black & white photos.
  • This versatile darkroom chemical boasts a long shelf-life, ready when you need it for your projects.
  • Perfect for creating custom fixing baths, ensuring your prints are stable and long-lasting.