If you've been trying to understand the slight difference between Oxalic acid and citric acid, then you should finish reading this!

What is Oxalic Acid?

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Oxalic Acid for sale on Camachem.

Oxalic acid is a toxic, colorless, odorless, and crystalline organic compound. Oxalic acid is also known as Oxiric acid, Wood bleach, or Ethanoic acid. Oxalic acid is a compound that you can find in plants and vegetables. It can also be produced through heating sodium formate in an alkali catalyst or fermenting sugar in a mold. It belongs to the carboxylic acid family.

Chemical Properties of Oxalic Acid

Here are some of the chemical characteristics of oxalic acid:

  • The oxalic acid chemical formula is C2H2O4.
  • It has a molar mass of 90.03g/mol.
  • Oxalic acid serves as a reducing agent.
  • It can donate two H+ ions as a dibasic acid.

General use of Oxalic Acid

The following are the general application of Oxalic acid:


Oxalic acid uses in cleaning

Oxalic acid is an effective and reliable cleaning agent once applied appropriately. It removes difficult stains from swimming pools, sidewalks, iron machinery, or buildings. While cleaning with oxalic acid, remember it's an acid, and ensure you wear protective clothing.


Oxalic acid uses in agriculture/food

Oxalic acid helps in regulating calcium concentration, an important ingredient in the proper functioning of plant guard cells. It assists plants in acidic soil by providing tolerance to aluminum toxicity.

Oxalic acid can be used to preserve food by stopping bacterial growth. It also helps plants to defend themselves against various insects and grazing animals.


Oxalic acid uses in medicine

Oxalic acid is used to dilute chemical elements. It can also be used as a purifying element.

Oxalic Acid FAQ

Here are the frequently asked questions about Oxalic acid:

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Oxalic Acid for sale on Camachem.

What's the Source of Oxalic Acid?

Early researchers derived oxalic acid from kidney stones (whose primary component was calcium oxalate). You can also find it in brassicas and spinach, such as Brussels sprouts, cabbage, and broccoli.

How to neutralize Oxalic Acid?

Before using oxalic acid, it has to be neutralized. Before use, flood the intended surface with baking soda and water for about two times and leave to dry overnight.

Is Oxalic Acid a Strong Acid?

No, oxalic is a weak acid.

What is Citric Acid?

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Citric Acid for sale on Camachem.

Citric acid is a colorless, odorless, and weak organic compound. It is found naturally occurring in citrus fruits, especially limes and lemons. It is now being manufactured from a special mold type. Citric acid looks like tiny clear crystals in its natural form. It has a sour taste.

Chemical Properties of Citric Acid

Here are some chemical characteristics of Citric acid:

  • Its chemical formula is C6H8O7.
  • It has a molar mass of 192.124g/mol.
  • Citric acid is a tribasic acid.
  • Citric acid occurs in two forms which are anhydrous and monohydrate.

General use of Citric Acid


Citric acid uses in cleaning

Citric acid is an effective disinfectant against bacteria and viruses. It is also used as a cleaning agent to remove hard water stains, rust, lime, and soap scum. It is a safer alternative to conventional cleaning products and disinfectants. 


Citric acid uses in agriculture/food

Citric acid is one of the world's most popularly used food additives. You can use it to preserve ingredients, enhance flavor and boost acidity. It is sometimes added to canned vegetables and fruits to protect against bacteria.


Citric acid uses in medicine

Citric acid is employed in medicine as an additive to help preserve and stabilize the active ingredient in drugs. It can also enhance the taste of syrup-based and chewable medications. Mineral supplements also contain citric acid to make absorption easier.

Citric Acid FAQ

The following are frequently asked questions about Citric Acid:

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Citric Acid for sale on Camachem.

Is Citric Acid Dangerous?

Citric acid is naturally present in citrus fruits, but the synthetic form derived from molds are used as additives for food, supplement, medications, and cleaning agent. At the same time, the mold residue from the manufacturing procedures can sometimes cause allergies in rare cases. However, citric acid is generally known to be a safe substance.

How Do I Prepare A Citric Acid Solution?

To prepare a citric acid solution, put citric acid crystals in a non-metallic bowl and gently pour boiling water, using a pint or two for each pound of citric crystals. Keep stirring as you pour the water into the bowl to form your citric acid solution.

Difference between Oxalic and Citric Acid


Oxalic and Citric Acid differences in chemical form

The Key difference in the chemical form of oxalic and citric acid is that Citric Acid has three carboxylic functional acid groups, which is why it has a high chemical reactivity. Oxalic acid has two carboxylic functional acid groups and very low chemical reactivity.

Oxalic acid is a strong acidic compound with the chemical formula C2H2O4 while Citric acid is a weak organic compound with the formula C6H8O7.


Oxalic and Citric Acid differences in removal effects

Citric acid is more effective when it comes to the removal of Zinc and Lead while Oxalic acid has a high extract ability when it comes to the removal of Copper. Oxalic acid is inefficient when it comes to the removal of Zinc and Cadmium.


Both oxalic acid and citric acid are used for similar purposes and in similar industries. However, there are some differences in their chemical forms and removal effects. Both chemicals are available for sale on Camachem.