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: 12/06/2025

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Questions & Answers

FAQ

What is the primary use of Anhydrous Sodium Thiosulfate in photography?

Anhydrous Sodium Thiosulfate is primarily used in the preparation of fixing baths for the development of black and white film. It's also a component in various reducers.

What is the difference between Anhydrous Sodium Thiosulfate and crystalline hypo?

Anhydrous Sodium Thiosulfate does not lower the water temperature significantly when dissolved, unlike crystalline hypo. It's a more convenient choice for photographers as it requires less heat to mix effectively.

How do I substitute crystalline hypo with Anhydrous Sodium Thiosulfate?

If you're substituting crystalline hypo, you should use 64% of the Anhydrous Sodium Thiosulfate for a comparable effect.

What water temperature should I use when mixing Anhydrous Sodium Thiosulfate?

When using Anhydrous Sodium Thiosulfate, start with water of at least 90°F/32°C for optimal results.

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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.