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Hazard Summary Identification Reason For Common Name: CROTONIC ACID CAS Number: 3724-65-0 RTK Substance number: 0539 DOT Number: UN 2823 Date: February 1989 Revision: January 1999 ----------------------------------------------------------------------- ----------------------------------------------------------------------- HAZARD SUMMARY WORKPLACE EXPOSURE LIMITS * Crotonic Acid can affect you when breathed in. No occupational exposure limits have been established for * Crotonic Acid is a CORROSIVE CHEMICAL and can Crotonic Acid. This does not mean that this substance is not cause severe skin and eye irritation and burns. harmful. Safe work practices should always be followed. * Breathing Crotonic Acid can irritate the nose, throat and lungs causing coughing and/or shortness of breath. WAYS OF REDUCING EXPOSURE * Where possible, enclose operations and use local exhaust IDENTIFICATION ventilation at the site of chemical release. If local exhaust Crotonic Acid is a white or colorless, crystalline (sand-like) ventilation or enclosure is not used, respirators should be solid. It is used to make resins, plastics, lacquers and certain worn. medicines. * Wear protective work clothing. * Wash thoroughly immediately after exposure to Crotonic REASON FOR CITATION Acid. * Crotonic Acid is on the Hazardous Substance List * Post hazard and warning information in the work area. In because it is cited by DOT and NFPA. addition, as part of an ongoing education and training * This chemical is on the Special Health Hazard Substance effort, communicate all information on the health and List because it is CORROSIVE. safety hazards of Crotonic Acid to potentially exposed * Definitions are provided on page 5. workers. HOW TO DETERMINE IF YOU ARE BEING EXPOSED 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 and training concerning chemical hazards and controls. The federal OSHA Hazard Communication Standard, 1910.1200, requires private employers to provide similar training and information to their employees. * Exposure to hazardous substances should be routinely evaluated. This may include collecting personal and area air samples. You can obtain copies of sampling results from your employer. You have a legal right to this information under OSHA 1910.1020. * If you think you are experiencing any work-related health problems, see a doctor trained to recognize occupational diseases. Take this Fact Sheet with you. CROTONIC ACID page 2 of 6 This Fact Sheet is a summary source of information of all WORKPLACE CONTROLS AND PRACTICES potential and most severe health hazards that may result from exposure. Duration of exposure, concentration of the Unless a less toxic chemical can be substituted for a hazardous substance and other factors will affect your susceptibility to substance, ENGINEERING CONTROLS are the most any of the potential effects described below. effective way of reducing exposure. The best protection is to --------------------------------------------------------------------------- enclose operations and/or provide local exhaust ventilation at the site of chemical release. Isolating operations can also HEALTH HAZARD INFORMATION reduce exposure. Using respirators or protective equipment is less effective than the controls mentioned above, but is Acute Health Effects sometimes necessary. The following acute (short-term) health effects may occur immediately or shortly after exposure to Crotonic Acid: In evaluating the controls present in your workplace, consider: (1) how hazardous the substance is, (2) how much of the * Crotonic Acid can cause severe skin and eye irritation and substance is released into the workplace and (3) whether burns. harmful skin or eye contact could occur. Special controls * Breathing Crotonic Acid can irritate the nose and throat should be in place for highly toxic chemicals or when causing coughing and wheezing. significant skin, eye, or breathing exposures are possible. Chronic Health Effects In addition, the following control is recommended: The following chronic (long-term) health effects can occur at some time after exposure to Crotonic Acid and can last for * Where possible, automatically transfer Crotonic Acid months or years: from drums or other storage containers to process containers. Cancer Hazard * According to the information presently available to the Good WORK PRACTICES can help to reduce hazardous New Jersey Department of Health and Senior Services, exposures. The following work practices are recommended: Crotonic Acid has not been tested for its ability to cause cancer in animals. * Workers whose clothing has been contaminated by Crotonic Acid should change into clean clothing Reproductive Hazard promptly. * According to the information presently available to the * Contaminated work clothes should be laundered by New Jersey Department of Health and Senior Services, individuals who have been informed of the hazards of Crotonic Acid has not been tested for its ability to affect exposure to Crotonic Acid. reproduction. * Eye wash fountains should be provided in the immediate work area for emergency use. Other Long-Term Effects * If there is the possibility of skin exposure, emergency * Crotonic Acid can irritate the lungs. Repeated exposure shower facilities should be provided. may cause bronchitis to develop with cough, phlegm, * On skin contact with Crotonic Acid, immediately wash or and/or shortness of breath. shower to remove the chemical. * Do not eat, smoke, or drink where Crotonic Acid is MEDICAL handled, processed, or stored, since the chemical can be swallowed. Wash hands carefully before eating, drinking, Medical Testing smoking, or using the toilet. If symptoms develop or overexposure is suspected, the * For clean-up, neutralize with a base (such as lime or soda following is recommended: ash) and absorb. Do not dry sweep. * Lung function tests. PERSONAL PROTECTIVE EQUIPMENT Any evaluation should include a careful history of past and WORKPLACE CONTROLS ARE BETTER THAN present symptoms with an exam. Medical tests that look for PERSONAL PROTECTIVE EQUIPMENT. However, for damage already done are not a substitute for controlling some jobs (such as outside work, confined space entry, jobs exposure. done only once in a while, or jobs done while workplace controls are being installed), personal protective equipment Request copies of your medical testing. You have a legal may be appropriate. right to this information under OSHA 1910.1020. OSHA 1910.132 requires employers to determine the appropriate personal protective equipment for each hazard and to train employees on how and when to use protective equipment. The following recommendations are only guidelines and may not apply to every situation. CROTONIC ACID page 3 of 6 * Where the potential for high exposure exists, use a Clothing MSHA/NIOSH approved supplied-air respirator with a full * Avoid skin contact with Crotonic Acid. Wear acid- facepiece operated in a pressure-demand or other positive- resistant gloves and clothing. Safety equipment pressure mode. For increased protection use in suppliers/manufacturers can provide recommendations on combination with an auxiliary self-contained breathing the most protective glove/clothing material for your apparatus operated in a pressure-demand or other positive- operation. pressure mode. * All protective clothing (suits, gloves, footwear, headgear) should be clean, available each day, and put on before HANDLING AND STORAGE work. * Prior to working with Crotonic Acid you should be Eye Protection trained on its proper handling and storage. * Wear indirect-vent, impact and splash resistant goggles * Crotonic Acid is not compatible with OXIDIZING when working with liquids. AGENTS (such as PERCHLORATES, PEROXIDES, * Wear a face shield along with goggles when working with PERMANGANATES, CHLORATES, NITRATES, corrosive, highly irritating or toxic substances. CHLORINE, BROMINE and FLUORINE); STRONG * Contact lenses should not be worn when working with this BASES (such as SODIUM HYDROXIDE and substance. POTASSIUM HYDROXIDE); and REDUCING AGENTS. Respiratory Protection * Store in tightly closed containers in a cool, well-ventilated IMPROPER USE OF RESPIRATORS IS DANGEROUS. area. Such equipment should only be used if the employer has a * Sources of ignition, such as smoking and open flames, are written program that takes into account workplace conditions, prohibited where Crotonic Acid is used, handled, or requirements for worker training, respirator fit testing and stored in a manner that could create a potential fire or medical exams, as described in OSHA 1910.134. explosion hazard. * Engineering controls must be effective to ensure that QUESTIONS AND ANSWERS exposure to Crotonic Acid does not occur. * NIOSH has established new testing and certification Q: If I have acute health effects, will I later get chronic requirements for negative pressure, air purifying, health effects? particulate filter and filtering facepiece respirators. The A: Not always. Most chronic (long-term) effects result filter classifications of dust/mist/fume, paint spray or from repeated exposures to a chemical. pesticide prefilters, and filters for radon daughters, have been replaced with the N, R, and P series. Each series has Q: Can I get long-term effects without ever having short- three levels of filtering efficiency: 95%, 99%, and 99.9%. term effects? Check with your safety equipment supplier or your A: Yes, because long-term effects can occur from repeated
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