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Photographers' Formulary Sodium Carbonate, Monohydrate - 20 Lbs.

Photographers' Formulary Sodium Carbonate, Monohydrate - 20 Lbs.

B&H # PHSCM20LB MFR # 10-1193 20LB
Photographers' Formulary Sodium Carbonate, Monohydrate - 20 Lbs.

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  • 1Description

Sodium Carbonate is commonly available in anhydrous and monohydrous forms. The crystalline form is available as Arm & Hammer Washing Soda, which is sodium carbonate decahydrate (use the yellow, unscented box). This can be safely substituted in almost all formulas calling for carbonate.

UPC: 675152119315
Table of Contents
  • 1Description
Synonyms Soda
Sal soda
Soda ash
Washing soda
Carbonate of soda
Carbonic acid, disodium salt; disodium carbonate
Soda ash
Appearance White, odorless granular powder that absorbs moisture from the air
Uses One of the principle alkalies (accelerators) used in development
Chemical Formula Na2CO3
Notes Balanced Alkali (Kodalk) can be used as a substitute for carbonate or vice versa.

Cautions: Sodium carbonate releases a gas when added to an acid stop bath or an acid fixing bath; this gas may cause pinholes, or "blistering," to develop in film emulsions.

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