CBSE Class 10 Answered
mineral acids are harmful for living beings?
Asked by Angel Sanaf farooqui | 09 Jul, 2013, 09:39: PM
Expert Answer
Common mineral acids such as hydrochloric, phosphoric, nitric and sulphuric acid can cause surface burns when a dermal exposure occurs. The area affected is localized, in other words, only the area contacted by the acid is affected.
Eg ,Hydrofluoric acid causes local injuries; however. The fluoride anion (F-) that dissociates from its hydrogen counterpart readily absorbs through the skin and performs its damage on the inside, penetrating deep into body tissues, causing a systemic injury
The fluoride ion has an affinity for calcium and magnesium and binds with calcium, it consumes the bodys supply of this mineral in the blood and also attacks bone structure, forming calcium fluoride salts.
As serum calcium levels are depleted in the blood, a condition known as hypocalcaemia, organ failure begins to occur, heart function becomes erratic .
Answered by | 10 Jul, 2013, 12:42: AM
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