MANUFACTURER
Tie up metal ions (Ca²⁺, Mg²⁺, Fe³⁺) that cause stains, bad keeping, or precipitates.
Disodium edetate EDTA * 2Na Complexon III - 1000g
940,09 Kč
Net price: 764,33 Kč
Disodium edetate EDTA * 2Na Complexon III - 100g
164,50 Kč
Net price: 133,73 Kč
Disodium edetate EDTA * 2Na Complexon III - 10g
93,99 Kč
Net price: 76,42 Kč
Disodium edetate EDTA * 2Na Complexon III - 25 000g = 25kg bag
11 202,83 Kč
Net price: 9 108,02 Kč
Disodium edetate EDTA * 2Na Complexon III - 5000g
4 112,91 Kč
Net price: 3 343,81 Kč
Disodium edetate EDTA * 2Na Complexon III - 500g
587,56 Kč
Net price: 477,71 Kč
Sodium Citrate Tribasic - 1000g
352,54 Kč
Net price: 286,62 Kč
Sodium Citrate Tribasic - 100g
105,78 Kč
Net price: 86,03 Kč
Sodium Citrate Tribasic - 10g
29,48 Kč
Net price: 24,00 Kč
Sodium Citrate Tribasic - 25 000g
4 112,91 Kč
Net price: 3 343,81 Kč
Sodium Citrate Tribasic - 5000g
1 175,12 Kč
Net price: 955,37 Kč
Sodium Citrate Tribasic - 500g
211,50 Kč
Net price: 171,93 Kč
Sodium hexametaphosphate ( sodium cyclo-hexaphosphate ) SHMP [ CAS: 68915-31-1 ]
5 247,64 Kč
Net price: 4 266,39 Kč
Ethylenediamine tetraacetic acid, EDTA, Edetic acid chelating reagent
35,38 Kč
Net price: 28,77 Kč
Sodium hexametaphosphate 68% Loba extra pure op. 100 g
129,42 Kč
Net price: 105,25 Kč
Sodium hexametaphosphate 68% Loba extra pure op. 25 g
78,42 Kč
Net price: 63,74 Kč
Sodium hexametaphosphate 68% Loba extra pure op.500 g
406,66 Kč
Net price: 330,60 Kč
Tap water brings metal ions like calcium, magnesium, iron, or copper. These can cause precipitates (developer “scum”), catalyze oxidation, create stains, or reduce activity. Chelators bind these ions, keeping them harmless in solution. This improves reliability, especially with hard water, and prevents gritty deposits on film/paper or in tanks.
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EDTA salts, hexametaphosphate, and citrates are typical.
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In practice, they’re a “hidden stability upgrade” — you notice them most when they’re missing.