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A typical titration curve of a diprotic acid, oxalic acid, titrated with a strong base, sodium hydroxide.Both equivalence points are visible. Titrations are often recorded on graphs called titration curves, which generally contain the volume of the titrant as the independent variable and the pH of the solution as the dependent variable (because it changes depending on the composition of the ...
Oxalic acid's main applications include cleaning or bleaching, especially for the removal of rust (iron complexing agent). Its utility in rust removal agents is due to its forming a stable, water-soluble salt with ferric iron, ferrioxalate ion. Oxalic acid is an ingredient in some tooth whitening products.
Zinc powder, after being dissolved in sulfuric or hydrochloric acid, for standardization of EDTA solutions; Such standards are often used to make standard solutions. These primary standards are used in titration and are essential for determining unknown concentrations [1] or preparing working standards.
If one reagent is a weak acid or base and the other is a strong acid or base, the titration curve is irregular and the pH shifts less with small additions of titrant near the equivalence point. For example, the titration curve for the titration between oxalic acid (a weak acid) and sodium hydroxide (a strong base) is
Acid–base titration is also utilized in the analysis of acid rain effects on soil and water bodies, contributing to the overall understanding and management of environmental quality. [24] The method's prevision and reliability make it a valuable tool in safeguarding ecosystems and assessing the impact of human activities on natural water ...
As originally determined by Staudinger, [7] oxalyl chloride reacts with water giving off gaseous products only: hydrogen chloride (HCl), carbon dioxide (CO 2), and carbon monoxide (CO). [9] (COCl) 2 + H 2 O → 2 HCl + CO 2 + CO. Other acyl chlorides hydrolyze with formation of hydrogen chloride and the original carboxylic acid.
Sodium oxalate, or disodium oxalate, is a chemical compound with the chemical formula Na 2 C 2 O 4. It is the sodium salt of oxalic acid. It contains sodium cations Na + and oxalate anions C 2 O 2− 4. It is a white, crystalline, odorless solid, that decomposes above 290 °C. [2]
English: A version of en::Image:Oxalic acid-NaOH titration.png with some grid lines on the graph. en:Titration of 01 M en:oxalic acid with 1.0 M NaOH. Laboratory data collected by en:User:Atropos235. Data plot modified by en:User:JWSchmidt.