Photographers' Formulary 20lbs Sodium Bisulfite
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Photographers' Formulary 20lbs Sodium Bisulfite

SKU: PYSBISI20G MFR: 10-1178 20LB
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$85.00
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Key Features

  • Achieve optimal archival properties with our 20lbs Sodium Bisulfite for lasting prints.
  • Use as a preservative for pyro developer, extending its life and maintaining image quality.
  • Our Sodium Bisulfite acidulates and preserves fixing baths, ensuring consistent results.
  • Control grain effortlessly; this 20lbs supply helps refine your black-and-white images.
  • Enjoy ease of use with this crystalline powder, perfect for darkroom chemical solutions.
  • Enhance tonal range in your prints; our high-quality bisulfite ensures rich, deep blacks.
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Special Order?Estimated to Ship: 09/10/2025
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Photographers' Formulary Sodium Bisulfite Specifications

  • Synonyms

    Acid sulfite of soda
    Leucogen
    Sodium acid sulfite
    Sulfurous acid, monosodium salt
    Sodium hydrogen sulfite, solid

  • Appearance

    White, crystalline powder
    Slight odor of sulfur dioxide

  • Uses

    In acidulating and preserving fixing baths
    As a preservative for pyro developer

  • Chemical Formula

    A mixture of NaHSO3 (sodium bisulfite) and Na2S2O5 (sodium metabisulfite)

  • Weight

    20lbs (9.07kg)

About Photographers' Formulary Sodium Bisulfite

Sodium Bisulfite Uses:
• In acidulating and preserving fixing baths
• As a preservative for pyro developer

Note:

Can be substituted weight for weight with sodium metabisulfite. Very soluble in water, insoluble in alcohol.

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Key Features

  • Achieve optimal archival properties with our 20lbs Sodium Bisulfite for lasting prints.
  • Use as a preservative for pyro developer, extending its life and maintaining image quality.
  • Our Sodium Bisulfite acidulates and preserves fixing baths, ensuring consistent results.
  • Control grain effortlessly; this 20lbs supply helps refine your black-and-white images.
  • Enjoy ease of use with this crystalline powder, perfect for darkroom chemical solutions.
  • Enhance tonal range in your prints; our high-quality bisulfite ensures rich, deep blacks.