Alkalies, also called bases, all have a pH range of 7.1 to 14.0. The corrosive effects of alkaline chemicals usually occur rapidly, sometimes with exposures as short as one second. Severe skin irritation and burns can occur from skin contact. Inhalation of fumes from alkalies may cause watering of the eyes, sneezing, coughing, choking, shortness of breath, and inflammation and irritation from the nose to lungs.
When working with household products that are alkaline or contain alkalies, wear gloves to protect your skin. Make sure ventilation is adequate. For disposal recommendations, see the specific product such as ammonia and drain cleaner.