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Raise pH so the developing agent works fast enough.
Borax Sodium tetraborate x 5H2O - 1000g
Lei34.88
Net price: Lei28.36
Borax Sodium tetraborate x 5H2O - 10g
Lei8.56
Net price: Lei6.95
Borax Sodium tetraborate x 5H2O - 25 000g
Lei465.12
Net price: Lei378.14
Borax Sodium tetraborate x 5H2O - 5000g
Lei139.53
Net price: Lei113.44
Borax Sodium tetraborate x 5H2O - 500g
Lei23.26
Net price: Lei18.91
Potassium Carbonate ( K2CO3 ) Anhydrous - Drying Agent - - 1000g
Lei41.71
Net price: Lei33.91
Potassium Carbonate ( K2CO3 ) Anhydrous - Drying Agent - - 100g
Lei13.91
Net price: Lei11.30
Potassium Carbonate ( K2CO3 ) Anhydrous - Drying Agent - - 25 000g
Lei581.40
Net price: Lei472.67
Potassium Carbonate ( K2CO3 ) Anhydrous - Drying Agent - - 5000g
Lei185.40
Net price: Lei150.73
Potassium Carbonate ( K2CO3 ) Anhydrous - Drying Agent - - 500g
Lei23.17
Net price: Lei18.84
Sodium Hydroxide ( Lye ) Caustic Soda - 1000g = 1kg
Lei33.72
Net price: Lei27.42
Sodium Hydroxide ( Lye ) Caustic Soda - 100g
Lei10.70
Net price: Lei8.70
Sodium Hydroxide ( Lye ) Caustic Soda - 25 000g = 25kg Bag
Lei430.23
Net price: Lei349.78
Sodium Hydroxide ( Lye ) Caustic Soda - 500g
Lei20.86
Net price: Lei16.97
Potassium carbonate anhydrous 99.5% PureLand AR/ACS Op.1000g
Lei265.12
Net price: Lei215.55
Potassium carbonate anhydrous 99.5% PureLand AR/ACS Op.500g
Lei141.40
Net price: Lei114.95
PureLand anhydrous potassium carbonate, hard packed, 1000 g HDPE bottle
Lei48.60
Net price: Lei39.51
PureLand potassium carbonate anhydrous chda op.250g HDPE bottle
Lei19.88
Net price: Lei16.16
Soda lye, SODIUM HYDROXIDE SOLUTION 50%
Lei151.16
Net price: Lei122.90
Sodium Carbonate - Soda ash ( Ammoniacal ) Sodium Carbonate Light
Lei23.26
Net price: Lei18.91
SODIUM CARBONATE standard solution 0.05 MOL/L OP. 1L PureLand
Lei88.37
Net price: Lei71.85
Sodium carbonate, anhydrous 99.5% Loba AR Op.500 g
Lei80.64
Net price: Lei65.56
Sodium carbonate, anhydrous 99.5% Loba extra pure op.500 g
Lei60.76
Net price: Lei49.40
Sodium hydroxide (caustic soda) PureLand chda microgranules op.1kg HDPE bottle
Lei43.97
Net price: Lei35.74
SODIUM HYDROXIDE 1 MOL/L titrated solution OP. 1L PureLand
Lei62.64
Net price: Lei50.93
Most developing agents only work well at elevated pH. Alkalis raise the solution pH, converting the developer into its more reactive form and speeding up electron transfer to silver halide. Think of alkali as the “throttle”: higher pH = faster development, higher effective film speed, and often higher contrast.
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Carbonates (sodium/potassium carbonate) are common because they’re strong enough for normal development and provide good buffering.
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Hydroxides are very strong and can produce “high-energy” developers — fast, punchy, but easier to overdevelop or fog.
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Borax/metaborate are gentler, used when you want smoother tones or lower contrast.