Sulphuric acid of хч 2807000000
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Sulfuric acid H2SO4 is a strong dibasic acid that corresponds to the highest oxidation state of sulfur (+6). Under normal conditions, concentrated sulfuric acid is a heavy oily liquid, colorless and odorless, with a sour "copper" taste.
In the technique, sulfuric acid is called a mixture with both water and sulfuric anhydride SO3. If the molar ratio SO3: H2O is <1, then it is an aqueous solution of sulfuric acid, if> 1 - a solution of SO3 in sulfuric acid.
Sulfuric acid is used:
- sulfonation (synthetic detergents and intermediate products in the production of dyes);
- alkylation (production of isooctane, polyethylene glycol, caprolactam), etc.
- For the recovery of resins in filters in the production of distilled water. ;
The largest consumer of sulfuric acid is the production of mineral fertilizers. For 1 ton of P₂O₅ phosphoric fertilizers 2.2-3.4 tons of sulfuric acid is consumed, and for 1 ton of (NH₄) ₂SO₄ - 0.75 tons of sulfuric acid. Therefore, they tend to build sulfuric acid plants in conjunction with plants for the production of mineral fertilizers.
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