Acrylic acid

A) TOXICITY: Serious burns are less likely if the pH >3. Injury is usually greater with either a large ingestion (usually deliberate), or a high concentration acid (usually not a household product).
B) In a case series of unintentional caustic ingestions (mixed liquid and solid, acids and bases) among children, the incidence of significant esophageal or gastric burns was 5% to 35%. However, adults with deliberate acid ingestions are more likely to develop significant esophageal and/or gastric burns (40% to 95%).
C) ANIMALS: The no-ill-effect-level in rabbits is 0.025 mg/kg orally. Animals exposed by inhalation to 700 mg/m(3) of acrylic acid for 4 hours per day developed kidney damage.