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11. Toxicological information <br />Information on likely routes of exposure <br />Ingestion Harmful if swallowed. Causes digestive tract burns. <br />Inhalation Causes respiratory tract burns. May cause lung edema. <br />Skin contact Causes severe skin burns. <br />Eye contact Causes severe eye burns. <br />Symptoms related to the Corrosive. Prolonged contact causes serious eye and tissue damage. May cause burns in <br />physical, chemical and mucous membranes, throat, esophagus and stomach. May cause lung edema. Symptoms may be <br />toxicological characteristics delayed. <br />Information on toxicological effects <br />Acute toxicity <br />Components <br />Harmful if swallowed. <br />Species <br />Hydrofluorosilicic acid (CAS 16961-83-4) <br />Acute <br />Oral <br />LD50 <br />Skin corrosion/irritation <br />Serious eye damage/eye <br />irritation <br />Rat <br />Causes severe skin burns. <br />Causes severe eye damage. <br />Respiratory or skin sensitization <br />Respiratory sensitization <br />No data available. <br />Skin sensitization <br />No data available. <br />Germ cell mutagenicity <br />No data available. <br />Carcinogenicity <br />No data available. <br />OSHA Specifically Regulated <br />Substances (29 CFR 1910.1001-1050) <br />Not listed. <br />Reproductive toxicity No data available. <br />Specific target organ toxicity - No data available. <br />single exposure <br />Specific target organ toxicity - No data available. <br />repeated exposure <br />Aspiration hazard No data available. <br />Test Results <br />430 mg/kg <br />Chronic effects <br />Prolonged overexposure to fluorides may increase fluoride content of bones and teeth, and may <br />result in fluorosis, with mottling of teeth (in children) and brittleness of bones. Absorbed fluoride <br />can cause metabolic imbalances with irregular heartbeat, nausea, dizziness, vomiting and <br />seizures. Risk of hypocalcemia with nervous problems (tetany) and cardiac arrhythmia. <br />12. Ecological information <br />Ecotoxicity <br />The product is not classified as environmentally hazardous. However, this does not exclude the <br />possibility that large or frequent spills can have a harmful or damaging effect on the environment. <br />Persistence and degradability <br />No data available. <br />Bioaccumulative potential <br />No data available. <br />Mobility in soil <br />The product is water soluble and may spread in water systems. <br />Other adverse effects <br />The product may affect the acidity (pH -factor) in water with risk of harmful effects to aquatic <br />organisms. <br />13. Disposal considerations <br />Disposal instructions Collect and reclaim or dispose in sealed containers at licensed waste disposal site. Do not allow <br />this material to drain into sewers/water supplies. Dispose of contents/container in accordance with <br />local/regional/national/international regulations. Dispose in accordance with all applicable <br />regulations. <br />Hazardous waste code D002: Waste Corrosive material [pH —2 or=>12.5, or corrosive to steel] <br />Waste codes should be assigned by the user based on the application for which the product was <br />used. <br />Hydrofluosilicic acid SIDS US <br />920631 v Version #: 01 Revision date: 5/20/20 Issue date: 28-January-2015 5/8 <br />