Photographers' Formulary 100g Aluminum Sulfate Photographic Hardener
See all Photographers' Formulary items

Photographers' Formulary 100g Aluminum Sulfate Photographic Hardener

SKU: PYALSU100G MFR: 10-0035 100G
Be the first to review this itemAsk a Question
$4.95
Earn VIP Reward Points

Key Features

  • Achieve superior image quality with this 100g bottle of Aluminum Sulfate hardener.
  • Extend your prints' archival properties; use as a fixer for long-lasting photos.
  • Enjoy ease of use; this photographic hardener mixes easily for consistent results.
  • Substitute for alum; use 2 parts Aluminum Sulfate for every 3 parts of alum needed.
  • Enhance shelf life of your darkroom chemicals with this quality hardener.
  • A cost-effective solution for hardening film, this Aluminum Sulfate is budget-friendly.
See More Product Details
Special Order?Estimated to Ship: 09/10/2025
Add to List

Need help? Ask our experts.

Overview
Compare
Specs
Q&A

Questions & Answers

Reviews about this item

Review Summary

Photographers' Formulary Aluminum Sulfate Specifications

  • Synonyms

    Concentrated alum
    Paper-maker's alum
    Sulfate of alumina

  • Appearance

    Colorless crystals

  • Uses

    Can be used as a substitute for alum as a hardener (ratio = 2 parts aluminum sulfate as a substitute for 3 parts alum).

  • Chemical Formula

    Al2(SO4)3 . 18H2O

  • Weight

    100g (3.53oz)

About Photographers' Formulary Aluminum Sulfate

The Photographers' Formulary 100g Aluminum Sulfate Can be used as a substitute for alum as a hardener (ratio = 2 parts aluminum sulfate as a substitute for 3 parts alum).

Note:

Stable under ordinary conditions of use and storage.

Join VIP PRO

2 Day Delivery on thousands of items!

Sell or Trade your Gear

Get started in 3 easy steps

Key Features

  • Achieve superior image quality with this 100g bottle of Aluminum Sulfate hardener.
  • Extend your prints' archival properties; use as a fixer for long-lasting photos.
  • Enjoy ease of use; this photographic hardener mixes easily for consistent results.
  • Substitute for alum; use 2 parts Aluminum Sulfate for every 3 parts of alum needed.
  • Enhance shelf life of your darkroom chemicals with this quality hardener.
  • A cost-effective solution for hardening film, this Aluminum Sulfate is budget-friendly.