Name: Photographers' Formulary 50lbs Anhydrous Sodium Thiosulfate
Brand: Photographers' Formulary
SKU: PYSTHA50LB
Price: 169.95 USD
Availability: BackOrder

Photographers' Formulary 50lbs Anhydrous Sodium Thiosulfate

Photographers' Formulary Sodium Thiosulfate

Photographers' Formulary

Generally ships in 7-14 days, subject to availability

Special Order

Generally ships in 7-14 days, subject to availability Estimated to Ship: 07/27/2025.

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Adorama

Photography

Film & Darkroom Equipment

Darkroom Chemicals

Black & White Chemicals

Photographers' Formulary Black & White Chemicals

Photographers' Formulary Sodium Thiosulfate 

Photographers' Formulary Anhydrous Sodium Thiosulfate (50lbs) for archival quality fixing baths. Ensures consistent results. Shop now for reliable darkroom chemicals!

When it comes to the meticulous art of black and white film development, our 50lbs Anhydrous Sodium Thiosulfate from the trusted brand, Photographers' Formulary, stands out as a high-quality, reliable choice. This professional-grade product is specifically formulated for use in photography, ensuring it meets the unique needs of photographers.Anhydrous Sodium Thiosulfate is primarily used in the preparation of fixing baths, serving as a crucial ingredient in various reducers. Unlike its counterpart, the more commonly used crystalline hypo, anhydrous Sodium Thiosulfate does not lower the water temperature significantly when dissolved. This makes it an effective and efficient choice for photographers who require consistent temperature control during the development process.For those transitioning from the crystalline form, it's important to note that you should use 64% of the anhydrous salt as a substitute for crystalline hypo. Always start with water of at least 90 degrees Fahrenheit (32 degrees Celsius) when mixing the crystalline form to ensure optimal results.In summary, our 50lbs Anhydrous Sodium Thiosulfate is a durable, high-quality product designed to deliver professional results in black and white film development. Its specific formulation and reliable performance make it a preferred choice for photographers seeking precision and consistency in their work.

Photographers' Formulary 50lbs Anhydrous Sodium Thiosulfate

Key Features

Protect your gear with Adorama Protect.* Learn more

Photographers' Formulary 50lbs Anhydrous Sodium Thiosulfate

Save 5% Every Day†

Key Features

Protect your gear with Adorama Protect.* Learn more

Save 5% Every Day^†