ACETIC ACID
In the glacial form this acid acts as a corrosive, the dilute acid as an irritant. Cases have been recorded of poisoning by the glacial acid.
Symptoms.—The parts with which the acid has come in contact are softened and rendered yellowish-white in colour. The larynx is commonly affected by the acid, as it is very volatile.
Post-mortem Appearances are those of corrosive poisoning with inflammatory action in the upper air-passages.
Fatal Period is variable but rapid.
Fatal Dose.—One drachm caused death in a child, but recovery has taken place in an adult after taking six fluid ounces.
Chemical Analysis.—Separate the free acid from organic matter by distillation, if in combination it should be liberated by adding phosphoric acid. With ferric chloride and ammonia to neutralisation a red colour is produced, turned yellow by hydrochloric acid.
Treatment.—Magnesia should be given to neutralise the acid and vomiting produced. The laryngeal symptoms will require treating on general principles; tracheotomy may be necessary.