Firstcall Photographic

Bellini Sodium Suphite anhydrous - 1kg

Bellini Sodium Suphite anhydrous - 1kg - Main image
$14.2 $20 In stock

Category: Film & Film Processing Raw Chemicals

Sodium Sulphite (anhydrous), often called Sodium of Soda, is a developer preservitive, mild silver solvent in fine grain developers and post fixer clearing bath. It is used to protect developer solutions from oxidation and (as hypo clear solution) to wash fixer (sodium thiosulfate) from film and photo-paper emulsions,


The molecular formula is: Na2SO3.

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Customer Reviews (4.8 / 5 · 5 reviews)

Adam ★★★★★

The granules dissolve completely clear in warm water, which makes mixing into my developer bath super easy. I've used it as a post-fixer clearing agent and it cuts down wash time noticeably.

Leo R. ★★★★★

This is my second kilo and it’s just so convenient that it’s anhydrous—no need to fuss with the hydrated crystal form when mixing my fine grain developer. The powder dissolves cleanly and quickly, which saves me a lot of time in the darkroom.

Abigail ★★★★★

Used it as a post-fix clearing bath and my negatives came out noticeably cleaner. The anhydrous powder dissolves quickly without leaving any residue, which made mixing a 1kg batch straightforward.