An acidic bath that immediately halts development.
Anhydrous Citric Acid - 1000g
Lei46.35
Net price: Lei37.69
Anhydrous Citric Acid - 100g
Lei11.77
Net price: Lei9.57
Anhydrous Citric Acid - 25 000g = 25kg bag
Lei695.23
Net price: Lei565.23
Anhydrous Citric Acid - 5000g
Lei185.40
Net price: Lei150.73
Anhydrous Citric Acid - 500g
Lei27.81
Net price: Lei22.62
Citric Acid Monohydrate - 1000g
Lei41.26
Net price: Lei33.55
Citric Acid Monohydrate - 100g
Lei9.63
Net price: Lei7.83
Citric Acid Monohydrate - 5000g
Lei180.76
Net price: Lei146.95
Citric Acid Monohydrate - 500g
Lei23.17
Net price: Lei18.84
Sodium Pyrosulfite ( metabisulfite ) metabisulphite Na2S2O5 - 1000g
Lei20.86
Net price: Lei16.97
Sodium Pyrosulfite ( metabisulfite ) metabisulphite Na2S2O5 - 100g
Lei6.42
Net price: Lei5.22
Sodium Pyrosulfite ( metabisulfite ) metabisulphite Na2S2O5 - 25 000g = 25kg bag
Lei351.78
Net price: Lei286.00
Sodium Pyrosulfite ( metabisulfite ) metabisulphite Na2S2O5 - 5000g
Lei83.43
Net price: Lei67.83
Sodium Pyrosulfite ( metabisulfite ) metabisulphite Na2S2O5 - 500g
Lei13.91
Net price: Lei11.30
Citric acid anhydrous 99,5% Loba AR Op.500 g
Lei89.70
Net price: Lei72.93
PureLand citric acid chda 1 hydrate op.100g HDPE bottle
Lei10.83
Net price: Lei8.80
PureLand citric acid chda 1 hydrate op.1kg HDPE bottle
Lei61.86
Net price: Lei50.29
PureLand citric acid chda 1 hydrate op.500g HDPE bottle
Lei37.56
Net price: Lei30.53
Development doesn’t stop on its own — developer left in the emulsion keeps working and can overdevelop highlights. A stop bath (usually weak acetic or citric acid) rapidly neutralizes the alkaline developer, freezing the tonal state at the intended point. This gives more consistent contrast and protects the fixer from being exhausted by carried-over developer. Water can be used as a stop in a pinch, but acid stops are faster and more reliable.