GEN SIL

R-phrase(s)

Weight Cristobalite 60 - 65 14464-46-1 238-455-4 R48/20, R40 (SiO2) Xn - Harmful Quartz (SiO2) <1 14808-60-7 238-878-4 R48/20, R40 Xn - Harmful Tridymite (SiO2) 25 - 30 15468-32-3 239-487-1 R48/20, R40 Xn - Harmful SECTION 3 - HAZARD IDENTIFICATION This product contains various forms of crystalline silica. Finished GEN SIL refractory bricks do not present any unusual health or safety hazards. However, if this product is used in such a way as to generate airborne particulate, health hazards can arise from chronic exposure to the airborne particulate. Also, these refractory bricks may be contaminated with other compounds during their use in industrial applications. End users of this product are responsible for determining additional hazards that may arise after this product is used in their specific industrial application. SECTION 3 – HAZARD IDENTIFICATION (continued) Symptoms of Exposure by Route Silicosis: Chronic exposure to respirable crystalline silica can cause silicosis, a fibrous scarring of the lungs. Silicosis may be progressive and may lead to disability and death. Lung Cancer: Crystalline silica inhaled from occupational sources is classified as carcinogenic to humans by IARC and NTP. Tuberculosis: Silicosis increases the risk of tuberculosis. Autoimmune Disease: There is evidence that exposure to crystalline silica (without silicosis) or the disease silicosis may be associated with Inhalation: the increased incidence of several autoimmune disorders including scleroderma, systematic lupus, and rheumatoid arthritis. Kidney Disease: There is evidence that exposure to crystalline silica (without silicosis) or that the disease silicosis is associated with the increased risk of kidney diseases, including end stage renal disease. Non-malignant Respiratory Disease: There is evidence that exposure to crystalline silica is associated with an increased incidence of chronic bronchitis and emphysema. Eye Contact: Crystalline silica may cause abrasion of the cornea. Skin Contact: May cause abrasion to skin. Ingestion: Unlikely route of occupational exposure. No known effects Very high exposures to crystalline silica over periods as short as a few months can result in acute silicosis. Symptoms include progressive Acute Effects: shortness of breath, fever, cough and weight loss. Acute silicosis is fatal. The adverse health effects listed above, silicosis, lung cancer, kidney Chronic Effects: diseases, tuberculosis, and non-malignant respiratory disease are chronic effects from prolonged exposure to crystalline silica. Signs and Symptoms of There are generally no immediate signs and symptoms of exposure to Exposure: crystalline other than minor respiratory and/or eye irritation. The condition of individuals with existing lung disease such as Medical Conditions bronchitis, emphysema and chronic obstructive pulmonary disease Aggravated by Exposure: (COPD) may be aggravated by exposure to crystalline silica.