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East India Chemical the term chromic acid 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. This kind of chromic acid may be used as a cleaning mixture for glass. Chromic acid may also refer to the molecular species, H2CrO4 of which the trioxide is the anhydride. Chromic acid features chromium in an oxidation state of +6 (or VI). It is a strong and corrosive oxidising agent.

Uses

Phosphoric acid is called as orthophosphoric acid & Chemical formula is H3PO4.  It is mineral means inorganic & weak acid, it also non- toxic acid which, when pure, is a solid at room temperature and pressure.  In Phosphoric acid Common source of phosphoric acid is 85% aqueous solution such solutions are colourless, odourless, and non-volatile. Due to its non-toxic and mildly acidic nature, it is used in food flavoring, beverages, dental products, cosmetics, and skin care products. Industrially, it is used mainly in the production of phosphate fertilizers.

Sulfamic acid other name is amidosulfonic acid, amidosulfuric acid, aminosulfonic acid, and sulfamidic acid & chemical formula is H3NSO3.  It is a white crystalline solid which is stable and non-hygroscopic. It is soluble in water and formamide and slightly soluble in methanol, ether, acetone and concentrated sulphuric acid.