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SECTION 2: Hazards identification

Emergency Overview ------------------------------- POISON! DANGER! MAY BE FATAL IF SWALLOWED. CORROSIVE. CAUSES SEVERE IRRITATION AND BURNS TO SKIN, EYES, AND RESPIRATORY TRACT. HARMFUL IF INHALED OR ABSORBED THROUGH SKIN. MAY CAUSE KIDNEY DAMAGE.

Potential health effects

Oxalic acid is corrosive to tissue. When ingested, oxalic acid removes calcium from the blood. Kidney damage can be expected as the calcium is removed from the blood in the form of calcium oxalate. The calcium oxalate then obstructs the kidney tubules. Inhalation: Harmful if inhaled. Can cause severe irritation and burns of nose, throat, and respiratory tract. Ingestion: Toxic! May cause burns, nausea, severe gastroenteritis and vomiting, shock and convulsions. May cause renal damage, as evidenced b y bloody urine. Estimate fatal dose is 5 to 15 grams. Skin Contact: Can cause severe irritation, possible skin burns. May be absorbed through the skin. Eye Contact: Oxalic acid is an eye irritant. It may produce corrosive effects. Chronic Exposure: May cause inflammation of the upper respiratory tract. Prolonged skin contact can cause dermatitis, cyanosis of the fingers and possible ulceration. May affect kidneys. Aggravation of Pre-existing Conditions: Persons with pre-existing skin disorders or eye problems, or impaired kidney or respiratory function may be more susceptible to the effects of the substance.