Inhalation: May cause mild irritation to the respiratory tract. Ingestion: Phosphates are slowly and incompletely absorbed when ingested, and seldom result in systemic effects. Such effects, however, have occurred. Symptoms may include vomiting, lethargy, diarrhea, blood chemistry effects, cardiac effects and central nervous system effects. The toxicity of phosphates is because of their ability to sequester calcium. Acute potassium intoxication by mouth is rare because large single doses usually induce vomiting and because in the absence of pre-existing kidney damage, potassium is rapidly excreted. Potassium poisoning can result in heart effects, change in respiration rate, tingling in the extremities, heaviness in the limbs, nausea and diarrhea. Skin Contact: Irritant due to its acidic nature. May cause inflammation and pain on prolonged contact, especially with moist skin. Eye Contact: May cause irritation, redness and pain. Chronic Exposure: May sequester calcium and cause calcium phosphate deposits in the kidneys. Aggravation of Pre-existing Conditions: Persons with impaired kidney function may be more susceptible to the effects of the substance