Photographers' Formulary 10g Sodium Thiosulfate (Hypo), Penta (Prismatic Rice)

SKU: PYSTHP10G MFR: 10-1360 10G
$3.95
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Key Features

  • Achieve archival quality prints with our premium Sodium Thiosulfate (Hypo).
  • Use as a fixer in film development for lasting image quality and clarity.
  • Perfect for mixing precise darkroom chemical solutions; get consistent results.
  • Effectively remove residual silver halide crystals for archival properties.
  • Our easy-to-use formula ensures hassle-free preparation of fixing baths.
  • Extend the shelf life of your prints by using this essential darkroom chemical.
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Special Order?Estimated to Ship: 09/10/2025

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Photographers' Formulary Sodium Thiosulfate (Hypo) 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 (Hypo)

Because precision and quality are paramount in the art of photography, Adorama offers the 10g Sodium Thiosulfate (Hypo), Penta (Prismatic Rice) - an effective, high-quality, and reliable choice for photographers seeking to perfect their developing process. This premium-grade sodium thiosulfate is a crucial component in the preparation of fixing baths, ensuring that images are preserved with clarity and stability. As a key ingredient in various photographic reducers, it plays an essential role in the reduction of silver halide crystals, facilitating the creation of enduring and vivid black and white images.

Our Sodium Thiosulfate is conveniently available in the crystalline penta form, also known as Prismatic Rice, which is favored for its consistent performance. When dissolved, this form is known to lower the temperature of the water, an important consideration for photographers who demand precise control over their developing conditions. To achieve optimal results, it is recommended to begin with water at a temperature of at least 90°F (32°C) when mixing this crystalline hypo.

For those who prefer an alternative, the anhydrous form of hypo can be used by adjusting the quantity to 64% of the crystalline hypo amount. This flexibility allows photographers to choose the form that best suits their workflow and environmental conditions.

Choosing Adorama's Sodium Thiosulfate means opting for a product that is specifically formulated for photographic applications, ensuring safety and convenience without compromising on quality. Trust in a brand that is synonymous with the highest standards in photography products, and elevate your developing process with the assurance that comes from using a product designed with your artistry in mind.

Photographers' Formulary Sodium Thiosulfate (Hypo) Features

  • Premium-grade Sodium Thiosulfate (Hypo) for precise and high-quality photographic developing
  • Effective component in the preparation of fixing baths, ensuring image clarity and stability
  • Key ingredient in various photographic reducers, facilitating vivid black and white images
  • Available in the reliable crystalline form, also known as Prismatic Rice for consistent performance
  • Ideal for use with water temperatures of at least 90°F (32°C) for optimal developing conditions
  • Provides the flexibility to use anhydrous hypo by adjusting to 64% of the crystalline hypo amount

Key Features

  • Achieve archival quality prints with our premium Sodium Thiosulfate (Hypo).
  • Use as a fixer in film development for lasting image quality and clarity.
  • Perfect for mixing precise darkroom chemical solutions; get consistent results.
  • Effectively remove residual silver halide crystals for archival properties.
  • Our easy-to-use formula ensures hassle-free preparation of fixing baths.
  • Extend the shelf life of your prints by using this essential darkroom chemical.