Limestone and Dolomite

SECTION 2: Hazards identification

WARNING Toxic - Harmful by inhalation. (Contains crystalline silica) DO NOT use for Abrasive Blasting. Use proper engineering controls, work practices, and Personal Protective Equipment Respiratory Eye Protection (PPE) to prevent exposure to dust. Read MSDS for details. Emergency Overview: Limestone and Dolomites are an odorless, angular grey, white, and tan particles ranging in size from a powder to boulders. They are not combustible or explosive. A single, short-term exposure to Limestone and Dolomite presents little or no hazard. (continued)

Potential health effects

Eye Contact: Eye contact to airborne dust may cause immediate or delayed irritation or inflammation. Eye exposures require immediate first aid and medical attention to prevent significant damage to the eye. Skin Contact: Limestone and Dolomite may cause dry skin, abrasions, discomfort, and irritation. Inhalation (acute): Breathing dust may cause nose, throat or lung irritation, including choking, depending on the degree of exposure. Inhalation (chronic): Risk of injury depends on duration and level of exposure. Silicosis: This product contains crystalline silica. Prolonged or repeated inhalation of respirable crystalline silica from this product can cause silicosis, a seriously disabling and fatal lung disease. See Note to Physicians in Section 4 for further information. Carcinogenicity: Crystalline silica is classified by IARC and NTP as a known human carcinogen. Autoimmune Some studies show that exposure to respirable crystalline silica (without silicosis) or Disease: that the disease silicosis may be associated with the increased incidence of several autoimmune disorders such as scleroderma (thickening of the skin), systemic lupus erythematosus, rheumatoid arthritis and diseases affecting the kidneys. Tuberculosis: Silicosis increases the risk of tuberculosis. Renal Disease: Some studies show an increased incidence of chronic kidney disease and end-stage renal disease in workers exposed to respirable crystalline silica. Ingestion: Do not ingest Limestone and Dolomite. Ingestion of small quantities of Limestone and Dolomite is not known to be harmful; ingesting large quantities can cause intestinal distress. Medical Conditions Individuals with lung disease (e.g. bronchitis, emphysema, COPD, pulmonary Aggravated by Exposure: disease) can be aggravated by exposure.