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Calcium Carbonate Right to Know Hazardous Substance Fact Sheet Common Name: CALCIUM CARBONATE Synonyms: Calcium Salt of Carbonic Acid, Chalk CAS Number: 1317-65-3 Chemical Name: Limestone RTK Substance Number: 4001 Date: July 2015 DOT Number: NA Description and Use EMERGENCY RESPONDERS >>>> SEE LAST PAGE Calcium Carbonate is a white to tan odorless powder or Hazard Summary odorless crystals. It is used in human medicine as an antacid, Hazard Rating NJDOH NFPA calcium supplement and food additive. Other uses are HEALTH 1 - agricultural lime and as additive in cement, paints, cosmetics, FLAMMABILITY 0 - dentifrices, linoleum, welding rods, and to remove acidity in REACTIVITY 0 - wine. REACTIVE Hazard Rating Key: 0=minimal; 1=slight; 2=moderate; 3=serious; 4=severe Reasons for Citation When Calcium Carbonate is heated to decomposition, it Calcium Carbonate is on the Right to Know Hazardous emits acrid smoke and irritating vapors. Substance List because it is cited by OSHA, NIOSH, and Calcium Carbonate is incompatible with ACIDS, EPA. ALUMINUM, AMMONIUM SALTS, MAGNESIUM, HYDROGEN, FLUORINE and MAGNESIUM. Calcium Carbonate mixed with magnesium and heated in a current of hydrogen causes a violent explosion. Calcium Carbonate ignites on contact with FLUORINE. Calcium Carbonate contact causes irritation to eyes and skin. SEE GLOSSARY ON PAGE 5. Inhaling Calcium Carbonate causes irritation to nose, throat and respiratory system and can cause coughing. FIRST AID Eye Contact Immediately flush with large amounts of water for at least 15 Workplace Exposure Limits minutes, lifting upper and lower lids. Remove contact OSHA: The legal airborne permissible exposure limit (PEL) is lenses, if worn, while flushing. Seek medical attention 15 mg/m3 (total particulate) averaged over an 8-hour immediately. workshift. Skin Contact The legal airborne permissible exposure limit (PEL) is Remove contaminated clothing and wash contaminated skin 5 mg/m3 (respirable fraction) averaged over an 8-hour with soap and water. workshift. Inhalation NIOSH: The recommended airborne exposure limit (REL) is Remove the person from exposure into fresh air. 10 mg/m3 (total particulate) averaged over a 10-hour Begin rescue breathing using artificial respiration if victim workshift. ingested or inhaled substance. The recommended airborne exposure limit (REL) is 5 mg/m3 (respirable fraction) averaged over a 10-hour workshift. EMERGENCY NUMBERS Poison Control: 1-800-222-1222 ACGIH: The threshold limit value (TLV) is 10 mg/m3 (total CHEMTREC: 1-800-424-9300 dust) containing no asbestos and <1% crystalline silica averaged over an 8-hour workshift. NJDEP Hotline: 1-877-927-6337 National Response Center: 1-800-424-8802 CALCIUM CARBONATE Page 2 of 6 Determining Your Exposure Other Effects Persons with pre-existing eye or respiratory diseases might Read the product manufacturer’s Material Safety Data have increased sensitivity. Sheet (MSDS) and the label to determine product ingredients and important safety and health information about the product mixture. Medical For each individual hazardous ingredient, read the New Medical Testing Jersey Department of Health Hazardous Substance Fact For persons exposed to high levels: Sheet, available on the RTK website (http://nj.gov/health/workplacehealthandsafety/right-to- Monitoring serum calcium and serum electrolytes might be know/) or in your facility’s RTK Central File or Hazard useful Communication Standard file. Any evaluation should include a careful history of past and You have a right to this information under the New Jersey present symptoms with an exam. Medical tests that look for Worker and Community Right to Know Act, the Public damage already done are not a substitute for controlling Employees Occupational Safety and Health (PEOSH) Act exposure. if you are a public worker in New Jersey, and under the federal Occupational Safety and Health Act (OSHA) if you Request copies of your medical testing. You have a legal right to this information under the OSHA Access to Employee are a private worker. Exposure and Medical Records Standard (29 CFR 1910.1020). The New Jersey Right to Know Act requires most employers to label chemicals in the workplace and requires public employers to provide their employees with information concerning chemical hazards and controls. The federal OSHA Hazard Communication Standard (29 Workplace Controls and Practices CFR 1910.1200) and the PEOSH Hazard Communication Very toxic chemicals, or those that are reproductive hazards or Standard (N.J.A.C. 12:100-7) require employers to provide sensitizers, require expert advice on control measures if a less toxic chemical cannot be substituted. Control measures similar information and training to their employees. include: (1) enclosing chemical processes for severely irritating and corrosive chemicals, (2) using local exhaust This Fact Sheet is a summary of available information ventilation for chemicals that may be harmful with a single regarding the health hazards that may result from exposure. exposure, and (3) using general ventilation to control Duration of exposure, concentration of the substance and other exposures to skin and eye irritants. For further information on factors will affect your susceptibility to any of the potential workplace controls, consult the NIOSH document on Control effects described below. Banding at www.cdc.gov/niosh/topics/ctrlbanding/. The following work practices are also recommended: Health Hazard Information Acute Health Effects Label process containers. The following acute (short-term) health effects may occur Provide employees with hazard information and training. immediately or shortly after exposure to Calcium Carbonate: Monitor airborne chemical concentrations. Use engineering controls if concentrations exceed Contact can irritate the skin and eyes. recommended exposure levels. Inhaling Calcium Carbonate can irritate the nose, throat Provide eye wash fountains and emergency showers. and lungs causing coughing. Wash or shower if skin comes in contact with a hazardous material. Always wash at the end of the workshift. Chronic Health Effects Change into clean clothing if clothing becomes The following chronic (long-term) health effects can occur at contaminated. some time after exposure to Calcium Carbonate and can last Do not take contaminated clothing home. for months or years: Get special training to wash contaminated clothing. Do not eat, smoke, or drink in areas where chemicals are Cancer Hazard being handled, processed or stored. While Calcium Carbonate has been tested, it is not Wash hands carefully before eating, smoking, drinking, classifiable as to its potential to cause cancer. applying cosmetics or using the toilet. Reproductive Hazard According to the information presently available to the New Jersey Department of Health and Senior Services, Calcium Carbonate has been tested and has not been shown to affect reproduction. CALCIUM CARBONATE Page 3 of 6 Personal Protective Equipment Fire Hazards If employees are expected to fight fires, they must be trained The OSHA Personal Protective Equipment Standard (29 CFR and equipped as stated in the OSHA Fire Brigades Standard 1910.132) requires employers to determine the appropriate (29 CFR 1910.156). personal protective equipment for each hazard and to train employees on how and when to use protective equipment. Calcium Carbonate is not combustible. When heated to decomposition it emits an acid smoke and irritating vapors. Use dry chemical, CO2, water spray or foam as extinguishing Currently there are no NIOSH recommendations for skin, eye agents. or respiratory protection Spills and Emergencies The following recommendations are only guidelines and may If employees are required to clean-up spills, they must be not apply to every situation. properly trained and equipped. The OSHA Hazardous Waste Operations and Emergency Response Standard (29 CFR Gloves and Clothing 1910.120) may apply. Avoid skin contact with Calcium Carbonate. Wear personal protective equipment made from material which can not be If Calcium Carbonate is spilled, take the following steps: permeated or degraded by this substance. Safety equipment suppliers and manufacturers can provide Small Spills: recommendations on the most protective glove and clothing material for your operation. Collect powdered material in the most convenient and safe The recommended glove material for Calcium Carbonate is manner and place into sealed containers for disposal. Nitrile. The recommended protective clothing material for Calcium Large Spills: Carbonate is Tyvek. All protective clothing (suits, gloves, footwear, headgear) Use N95 respirator, protective gloves (nitrile) and protective should be clean, available each day, and put on before work. clothing to avoid inhalation and skin contact. It may be necessary to contain and dispose of Calcium Eye Protection Carbonate as a HAZARDOUS WASTE. Contact your state Wear direct vent goggle, safety glasses or face shield when Department of Environmental Protection (DEP) or your airborne particles or dust are present. regional office of the federal Environmental Protection Agency (EPA) for specific recommendations. Respiratory Protection Improper use of respirators is dangerous. Respirators Handling and Storage should only be used if the employer has implemented a written Prior to working with Calcium Carbonate you should be program that takes into account workplace conditions, trained on its proper handling and storage. requirements for worker training,
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