EDTA Di Sodium Salt
EDTA is the commonly used abbreviation for (Ethylenedinitrilo) tetraacetic Acid (also called Ethylenediaminetetraacetic Acid or Edetic Acid).
EDTA is most commonly used to determine hardness (i.e., Calcium and Magnesium ions) in water, where the pH must be approximately 10 and is usually controlled by adding a buffer such as Water Hardness Buffer. Water Hardness Indicator (Eriochrome Black T), Eriochrome Blue Black R, Calmagite, and Murexide are used for hardness or Calcium determinations using EDTA.
The Disodium salt of EDTA is the most commonly used form of this versatile organic complexing agent, which is used for the determination of many metal ions either by direct titration or by back-titration. Adjustment of reaction conditions, either by controlling the pH or by use of masking agents, and selection of the appropriate indicator permits a wide variety of metal ions to be determined using EDTA.
Dosage
Molarity is best used in expressing EDTA concentration, because the reaction involves the complexation of one metal ion by one EDTA molecule or ion, whether the free acid form of EDTA or one of its more soluble Sodium salts is used. The general reaction involving the Disodium salt is:
EDTA2- + Mn+ → [EDTA-M]+n-2
where M = Ca, Mg, Cd, Mn, Ni, Al, Zn, Bi, Co, Cu, or other metal ion
Industrial Usage
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Sulphates - hydrazine, sodium
Phosphates - Potassium and Sodium
Acids - Boric, EDTA, Hydriodic, Sulphanilic, 5-Sulphosalicylic
Chemical Solutions (CVS - Concentrated volumetric solutions)
Starch - potato starch, starch soluble
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Starch soluble manufacturer
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Remarks
EDTA cas no : 6381-92-6
EDTA chemical Formula : [(HO2CCH2-)(NaO2CCH2-)N-CH2]2·2H2O
Supply Locations
EDTA and EDTA Disodium salt manufacturer India. supplier in Mumbai, Gandhidham, Chennai, Visakhapatnam, Kolkata, Fujairah, Dubai, Sharjah, Abudhabi, Ajman, Muscat - Oman.