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Photographers' Formulary 50lbs Sodium Thiosulfate (Hypo), Penta (Prismatic Rice)
SKU: PYSTHP50LB MFR: 10-1364 50LB
$169.95
Key Features
- Achieve archival quality prints with this 50lb bulk Sodium Thiosulfate (Hypo).
- Perfect for creating fixing baths, ensuring long-lasting black and white photos.
- Use as an ingredient in various reducers for precise control over image tonality.
- This Photographer's Formulary Hypo offers consistent, reliable darkroom results.
- Get excellent results with this easy to use Sodium Thiosulfate, ideal for beginners.
- Our high-quality Hypo helps remove residual silver halide for permanent images.
Special Order?Estimated to Ship: 08/17/2025
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About Photographers' Formulary Sodium Thiosulfate (Hypo)
Sodium Thiosulfate Uses
• In preparation of fixing baths
• Ingredient in various reducers
Note:
Hypo is available in two forms: anhydrous and, more commonly crystalline. Crystalline hypo, when dissolved, lowers the temperature of the water considerably, whereas anhydrous does not. Always begin with water of at least 90deg.F/32deg.C when mixing the crystalline form. Use 64% of the anhydrous salt as a substitute for crystalline hypo.