We are offering ferric ammonium sulphate. Inhalation : causes irritation to the respiratory tract. Symptoms may include coughing, shortness of breath. ingestion : low toxicity in small quantities but larger dosages may cause nausea, vomiting, diarrhea, and black stool. Pink urine discoloration is a strong indicator of iron poisoning. Liver damage, coma, and death from iron poisoning has been recorded. skin contact : causes irritation to skin. Symptoms include redness, itching, and pain. May cause skin discoloration with irritation. eye contact : causes irritation, redness, and pain.