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<br />Memo to Erica Crosby, File No. M-90-57 6 October I8, 2001 <br />tract. Symptoms may include burning sensation, coughing, wheezing, laryngitis, shortness of breath, <br />headache, nausea and vomiting. High concentrations may cause lung damage. <br />Ingestion: <br />A strong alkaline irritant. Causes irritation to [he gastrointestinal tract. Symptoms may include nausea, <br />vomiting and diarrhea. Solid sodium silicate: Alkaline corrosive ingestion may produce burns to the lips, <br />tongue, oral mucosa, upper airway, esophagus and occasionally stomach. <br />Skin Contact: <br />A strong alkaline irritant. Causes severe irritation. Symptoms include redness, itching and pain. Dries to <br />form a glass film which can cut skin. Solid sodium silicate: Dermal contact with alkaline corrosives may <br />produce pain, redness, severe irritation or full thickness burns. <br />Eye Contact: <br />A strong alkaline irritant. Alkaline eye exposures produce severe irritation with effects similar to those of <br />dilute caustics. Inflammation or burns with possible damage to the eye tissues can occur together with <br />tearing and considerable pain. <br />Chronic Exposure: <br />No information found. <br />Aggravation of Pre-existing Conditions: <br />Persons with pre-existing skin disorders or impaired respiratory function may be more susceptible to the <br />effects of the substance. <br />Storage Considerations: Keep in a tightly closed container, stored in a cool, dry, ventilated area. Protect <br />against physical damage. Isolate from incompatible substances. Containers of this material may be <br />hazardous when empty since they retain product residues (vapors, liquid); observe all warnings and <br />precautions listed for [he product. <br />Environmental Toxici[v: No information found. <br />Disposal Considerations: Whatever cannot be saved for recovery or recycling should be managed in an <br />appropriate and approved waste disposal facility. Processing, use or contamination of this product may <br />change the waste management options. Slate and local disposal regulations may differ from federal <br />disposal regulations. Dispose of container and unused contents in accordance with federal, state and <br />local requirements. <br />Areo Float <br />Disposal Considerations: The information on RCRA waste classification and disposal methodology <br />provided below applies only [o the Cytec product, as supplied. If the material has been altered or <br />contaminated, or it has exceeded its recommended shelf life, the guidance may be inapplicable. Hazardous <br />waste classification under federal regulations (40 CFR Part 261 et seq) is dependent upon whether a <br />material is a RCRA "listed hazardous waste" or has any of the four RCRA "hazardous waste <br />characteristics." Refer to 40 CFR Part 261.33 to determine if a given material to be disposed of is a RCRA <br />"listed hazardous waste." RCRA Hazardous Waste Characteristics: There are four characteristics defined in <br />40 CFR Section 261.21-61.24: Ignitability, Corrosivity, Reactivity, and Toxicity. Federal regulations are <br />subject to change. State and local requirements, which may differ from or be more stringent than the federal <br />regulations, may also apply to the classification of the material if it is to be disposed. Cytec encourages the <br />recycle, recovery and reuse of materials, where permitted, as an alternate to disposal as a waste. Cytec <br />