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Sulfamic Acid, also known as amidosulfonic acid, amidosulfuric acid and sulfamidic acid with chemical formula H3NSO3. This is water-soluble compound. Sulfamic acid is a white crystalline solid which is stable and non-hygroscopic. It is classified as a strong inorganic acid and is commercially produced from urea and fuming sulphuric acid. It's solution is less corrosive toward metals than other mineral acids like hydrochloric acid.

Citric Acid-Anhydrous is a weak organic acid with chemical formula C6H8O7. It occurs naturally in citrus fruits. It is used widely as an acidifier. Citric acid is used as a flavoring and preservative in food and beverages, especially soft drinks and candies.Citric acid is an excellent chelating agent, binding metals by making them soluble.

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Chromic acid, H2CrO4 is usually used for a mixture made by adding concentrated sulfuric acid to a dichromate, which may contain a variety of compounds, including solid chromium trioxide. Chromic acid may be used as a cleaning mixture for glass. It is a strong and corrosive oxidising agent.

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