Move containers from fire area if safely possible. Self-contained breathing apparatus may be needed. Above 250 F material may sublime to irritating and corrosive vapor or mist. Irritant to skin, eyes, mucous membranes. Ingestion may cause severe gastroenteritis with vomiting and diarrhea.
Renal damage can result from excessive calcium oxalate.
Severe poisoning can end fatally. Prolonged skin contact may cause pain, discoloration of fingers which could lead to gangrene. May cause kidney damage, emaciation, cough, nervousness. Medical conditions aggravated by exposure- Chronic respiratory disease, skin diseases, kidney diseases, eye diseases. Get immediate medical attention.