Photographers' Formulary 5lbs Sodium Metabisulfite

SKU: PYSMES5LB MFR: 10-1281 5LB
$35.95
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Key Features

  • Achieve archival quality in your prints with our premium Sodium Metabisulfite.
  • Control contrast effectively using this key ingredient in your black & white developer.
  • Extend developer life and maintain consistent results with this preservative.
  • Fine grain development is now easier, ensuring sharp, detailed images every time.
  • Use in acidifying fixing baths for optimal performance and longevity of your prints.
  • This 5lb supply of Sodium Metabisulfite ensures you're ready for all your darkroom needs.
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Special Order?Estimated to Ship: 09/05/2025

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Photographers' Formulary Sodium Metabisulfite Specifications

  • Synonyms

    Sodium pyrosulfite
    Sodium metabisulfite, SO2 58.5% min
    Disodium disulphite
    Sodium metabisulphite gr
    Sodium disulphite-Sodium pyrosulphite
    Sodium disulfite

  • Appearance

    White crystalline powder with a sulfur smell

  • Uses

    As a preservative in developers
    Used in place of sodium sulfite in some developers, particularly in two-solution formulas where the increased acidity of the metabisulfite inhibits oxidation. For acidifying fixing baths.

  • Chemical Formula

    Na2O5S2

  • Weight

    5lbs (2.27kg)

About Photographers' Formulary Sodium Metabisulfite

Take your photographic development process to the next level with our high-quality 5lbs Sodium Metabisulfite. This versatile chemical is an essential component for photography enthusiasts and professionals alike, serving multiple roles in the photographic chemical lineup.

As a preservative, Sodium Metabisulfite is integral in maintaining the integrity of your developers. It acts as a reliable substitute for sodium sulfite, particularly favored in two-solution developer formulas. The increased acidity of Sodium Metabisulfite is a key factor in its effectiveness, as it significantly inhibits oxidation, ensuring that your developers remain potent and effective over time.

Moreover, Sodium Metabisulfite is also utilized for acidifying fixing baths, a critical step in the photographic development process. This ensures that your photographs come out with the clarity and longevity you desire. Its compatibility allows it to be substituted weight for weight with sodium bisulfite, offering flexibility and ease of use for your photographic needs.

Our 5lbs pack of Sodium Metabisulfite is a staple for any darkroom, providing you with a substantial quantity to support numerous development sessions. Whether you're a seasoned photographer or a passionate hobbyist, this product is an indispensable tool for achieving high-quality photographic results.

Incorporate this premium Sodium Metabisulfite into your development routine and experience the difference in the stability and quality of your photographic developers and fixers.

Photographers' Formulary Sodium Metabisulfite Features

  • High-quality Sodium Metabisulfite for photographic development
  • Ideal preservative for developers, enhancing longevity and effectiveness
  • Suitable substitute for sodium sulfite, especially in two-solution formulas
  • Increases acidity to inhibit oxidation in photographic chemicals
  • Perfect for acidifying fixing baths, ensuring clear and lasting photographs
  • Convenient 5lbs pack for extensive use in professional and home darkrooms

Key Features

  • Achieve archival quality in your prints with our premium Sodium Metabisulfite.
  • Control contrast effectively using this key ingredient in your black & white developer.
  • Extend developer life and maintain consistent results with this preservative.
  • Fine grain development is now easier, ensuring sharp, detailed images every time.
  • Use in acidifying fixing baths for optimal performance and longevity of your prints.
  • This 5lb supply of Sodium Metabisulfite ensures you're ready for all your darkroom needs.