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Ethylenediaminetetraacetic acid (EDTA), also called EDTA acid, is an aminopolycarboxylic acid with the formula [CH 2 N(CH 2 CO 2 H) 2] 2. This white, slightly water-soluble solid is widely used to bind to iron (Fe 2+ /Fe 3+ ) and calcium ions (Ca 2+ ), forming water-soluble complexes even at neutral pH.
Tetrasodium EDTA is the salt resulting from the neutralization of ethylenediaminetetraacetic acid with four equivalents of sodium hydroxide (or an equivalent sodium base). It is a white solid that is highly soluble in water. Commercial samples are often hydrated, e.g. Na 4 EDTA. 4H 2 O. The properties of solutions produced from the anhydrous ...
Disodium phosphate (DSP), or disodium hydrogen phosphate, or sodium phosphate dibasic, is an inorganic compound with the chemical formula Na 2 H P O 4. It is one of several sodium phosphates. The salt is known in anhydrous form as well as hydrates Na 2 HPO 4 ·nH 2 O, where n is 2, 7, 8, and 12. All are water-soluble white powders. The ...
Disodium molybdate. ... Chemical formula. Na 2 MoO 4 Molar mass: 205.92 g/mol (anhydrous) 241.95 g/mol (dihydrate) Appearance White powder Density:
Phosphate-buffered saline (PBS) is a buffer solution (pH ~ 7.4) commonly used in biological research.It is a water-based salt solution containing disodium hydrogen phosphate, sodium chloride and, in some formulations, potassium chloride and potassium dihydrogen phosphate.
An unexpected negative environmental impact of chelating agents, as DTPA, is their toxicity for the activated sludges in the treatment of Kraft pulping effluents. [13] Most of the DTPA worldwide production (several thousands of tons) [3] is intended to avoid hydrogen peroxide decomposition by redox-active iron and manganese ions in the chlorine-free Kraft pulping processes (total chlorine free ...
he tales were scrubbed further and the Disney princesses -- frail yet occasionally headstrong, whenever the trait could be framed as appealing — were born. In 1937, . Walt Disney's "Snow White and the Seven Dwarves" was released to critical acclaim, paving the way for future on-screen adaptations of classic tales.
(S,S)-EDDS is a biodegradable chelating agent that offers an alternative to EDTA, of which 80 million kilograms are produced annually. Under natural conditions, EDTA has been found to convert to ethylenediaminetriacetic acid and then cyclize to the diketopiperazine, which accumulates in the environment as a persistent organic pollutant.