Photographers' Formulary 10g Potassium Metabisulfite
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Photographers' Formulary 10g Potassium Metabisulfite

SKU: PYPMETA10G MFR: 10-1050 10G
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$3.95
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Key Features

  • Achieve optimal image quality with our premium Potassium Metabisulfite, 10g.
  • Use as a developer preservative for extended shelf life and consistent results.
  • Enhance archival properties of your prints by acidifying fixing baths effectively.
  • Get finer grain structure in your black and white photos with this unique formula.
  • Control tonal range precisely when developing; a must-have darkroom chemical.
  • Enjoy ease of use; simply add to your developer for improved image clarity.
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Special Order?Estimated to Ship: 09/10/2025
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Reviews about this item

Review Summary

2019-11-27T07:23:14

Rated 5 out of 5

Good Source for Alt Process Chemicals

It’s a chemical widely available. Adorama had the best price once shipping was included.

Raphael W.

Photographers' Formulary Potassium Metabisulfite Specifications

  • Synonyms

    Metabisulfite of potash
    Potassium pyrosulfite
    pyrosulfurous acid, dipotassium salt
    Disulfurous acid, dipotassium salt
    Potassium disulfite

  • Appearance

    Transparent needle crystals or crystalline powder
    Odor of sulfur dioxide

  • Uses

    As a preservative in developers
    Used in place of sodium sulfite in some developers
    Used for acidifying fixing baths

  • Chemical Formula

    K2S2O5

  • Weight

    10g (0.35oz)

About Photographers' Formulary Potassium Metabisulfite

FEATURED REVIEWS

Good Source for Alt Process Chemicals

By Raphael W.

It’s a chemical widely available. Adorama had the best price once shipping was included.

Potassium Metabisulfite Uses
• As a preservative in developers
• Used in place of sodium sulfite in some developers
• Used for acidifying fixing baths

Note

Replaces sodium bisulfite weight for weight. Deteriorates rapidly in air.

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Key Features

  • Achieve optimal image quality with our premium Potassium Metabisulfite, 10g.
  • Use as a developer preservative for extended shelf life and consistent results.
  • Enhance archival properties of your prints by acidifying fixing baths effectively.
  • Get finer grain structure in your black and white photos with this unique formula.
  • Control tonal range precisely when developing; a must-have darkroom chemical.
  • Enjoy ease of use; simply add to your developer for improved image clarity.