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Nitrogen Trifluoride Hazard Summary Identification

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Nitrogen Trifluoride Hazard Summary Identification Common Name: NITROGEN TRIFLUORIDE CAS Number: 7783-54-2 RTK Substance number: 1380 DOT Number: UN 2451 Date: March 2001 ------------------------------------------------------------------------- ------------------------------------------------------------------------- HAZARD SUMMARY * Nitrogen Trifluoride can affect you when breathed in. * Exposure to hazardous substances should be routinely * Contact may irritate the skin and eyes. evaluated. This may include collecting personal and area * High levels can interfere with the ability of the blood to air samples. You can obtain copies of sampling results carry Oxygen causing headache, fatigue, dizziness, and a from your employer. You have a legal right to this blue color to the skin and lips (methemoglobinemia). information under OSHA 1910.1020. Higher levels can cause trouble breathing, collapse and * If you think you are experiencing any work-related health even death. problems, see a doctor trained to recognize occupational * Repeated high exposure can cause weakness, muscle diseases. Take this Fact Sheet with you. twitching, seizures and convulsions. * Nitrogen Trifluoride may damage the liver and kidneys. WORKPLACE EXPOSURE LIMITS * Repeated high exposure can cause deposits of Fluorides in OSHA: The legal airborne permissible exposure limit the bones and teeth, a condition called "Fluorosis." This (PEL) is 10 ppm averaged over an 8-hour can cause pain, disability and mottling of the teeth. workshift. * The above health effects do NOT occur at the level of Fluoride used in water for preventing cavities in teeth. NIOSH: The recommended airborne exposure limit is 10 ppm averaged over a 10-hour workshift. IDENTIFICATION Nitrogen Trifluoride is a colorless gas with a moldy odor. It ACGIH: The recommended airborne exposure limit is is used as a Fluorine source in the electronics industry and in 10 ppm averaged over an 8-hour workshift. high power lasers. WAYS OF REDUCING EXPOSURE REASON FOR CITATION * Where possible, enclose operations and use local exhaust * Nitrogen Trifluoride is on the Hazardous Substance List ventilation at the site of chemical release. If local exhaust because it is regulated by OSHA and is cited by ACGIH, ventilation or enclosure is not used, respirators should be DOT and NIOSH. worn. * Definitions are provided on page 5. * Wear protective work clothing. * Wash thoroughly immediately after exposure to Nitrogen HOW TO DETERMINE IF YOU ARE BEING Trifluoride and at the end of the workshift. EXPOSED * On skin contact with Nitrogen Trifluoride, immediately The New Jersey Right to Know Act requires most employers submerse the affected body part in warm water. to label chemicals in the workplace and requires public * Post hazard and warning information in the work area. In employers to provide their employees with information and addition, as part of an ongoing education and training training concerning chemical hazards and controls. The effort, communicate all information on the health and federal OSHA Hazard Communication Standard, 1910.1200, safety hazards of Nitrogen Trifluoride to potentially requires private employers to provide similar training and exposed workers. information to their employees. NITROGEN TRIFLUORIDE page 2 of 6 This Fact Sheet is a summary source of information of all Any evaluation should include a careful history of past and potential and most severe health hazards that may result from present symptoms with an exam. Medical tests that look for exposure. Duration of exposure, concentration of the substance damage already done are not a substitute for controlling and other factors will affect your susceptibility to any of the exposure. potential effects described below. --------------------------------------------------------------------------- Request copies of your medical testing. You have a legal right to this information under OSHA 1910.1020. HEALTH HAZARD INFORMATION Mixed Exposures Acute Health Effects * Because more than light alcohol consumption can cause The following acute (short-term) health effects may occur liver damage, drinking alcohol can increase the liver immediately or shortly after exposure to Nitrogen Trifluoride: damage caused by Nitrogen Trifluoride. * Contact may irritate the skin and eyes. WORKPLACE CONTROLS AND PRACTICES * High levels can interfere with the ability of the blood to carry Oxygen causing headache, fatigue, dizziness, and a Unless a less toxic chemical can be substituted for a hazardous blue color to the skin and lips (methemoglobinemia). substance, ENGINEERING CONTROLS are the most Higher levels can cause trouble breathing, collapse and effective way of reducing exposure. The best protection is to even death. enclose operations and/or provide local exhaust ventilation at * Repeated high exposure can cause weakness, muscle the site of chemical release. Isolating operations can also twitching, seizures and convulsions. reduce exposure. Using respirators or protective equipment is less effective than the controls mentioned above, but is Chronic Health Effects sometimes necessary. The following chronic (long-term) health effects can occur at some time after exposure to Nitrogen Trifluoride and can last In evaluating the controls present in your workplace, consider: for months or years: (1) how hazardous the substance is, (2) how much of the substance is released into the workplace and (3) whether Cancer Hazard harmful skin or eye contact could occur. Special controls * According to the information presently available to the New should be in place for highly toxic chemicals or when Jersey Department of Health and Senior Services, Nitrogen significant skin, eye, or breathing exposures are possible. Trifluoride has not been tested for its ability to cause cancer in animals. In addition, the following control is recommended: Reproductive Hazard * Where possible, automatically transfer gaseous Nitrogen * According to the information presently available to the New Trifluoride cylinders or other storage containers to process Jersey Department of Health and Senior Services, Nitrogen containers. Trifluoride has not been tested for its ability to affect reproduction. Good WORK PRACTICES can help to reduce hazardous exposures. The following work practices are recommended: Other Long-Term Effects * Workers whose clothing has been contaminated by * Nitrogen Trifluoride may damage the liver and kidneys. Nitrogen Trifluoride should change into clean clothing * Repeated high exposure can cause deposits of Fluorides in promptly. the bones and teeth, a condition called "Fluorosis." This * Contaminated work clothes should be laundered by can cause pain, disability and mottling of the teeth. individuals who have been informed of the hazards of exposure to Nitrogen Trifluoride. MEDICAL * Eye wash fountains should be provided in the immediate work area for emergency use. Medical Testing * If there is the possibility of skin exposure, emergency For those with frequent or potentially high exposure (half the shower facilities should be provided. TLV or greater), the following are recommended before * On skin contact with Nitrogen Trifluoride, immediately beginning work and at regular times after that: wash or shower to remove the chemical. At the end of the workshift, wash any areas of the body that may have * Fluoride level in urine. Levels higher than 4 mg/Liter contacted Nitrogen Trifluoride, whether or not known skin indicates overexposure. contact has occurred. * Liver and kidney function tests. NITROGEN TRIFLUORIDE page 3 of 6 * Do not eat, smoke, or drink where Nitrogen Trifluoride is * Be sure to consider all potential exposures in your handled, processed, or stored, since the chemical can be workplace. You may need a combination of filters, swallowed. Wash hands carefully before eating, drinking, prefilters or cartridges to protect against different forms of a smoking, or using the toilet. chemical (such as vapor and mist) or against a mixture of chemicals. PERSONAL PROTECTIVE EQUIPMENT * Where the potential for high exposure exists, use a MSHA/NIOSH approved supplied-air respirator with a full WORKPLACE CONTROLS ARE BETTER THAN facepiece operated in a pressure-demand or other positive- PERSONAL PROTECTIVE EQUIPMENT. However, for pressure mode. For increased protection use in combination some jobs (such as outside work, confined space entry, jobs with an auxiliary self-contained breathing apparatus done only once in a while, or jobs done while workplace operated in a pressure-demand or other positive-pressure controls are being installed), personal protective equipment mode. may be appropriate. * Exposure to 1,000 ppm is immediately dangerous to life and health. If the possibility of exposure above 1,000 ppm OSHA 1910.132 requires employers to determine the exists, use a MSHA/NIOSH approved self-contained appropriate personal protective equipment for each hazard and breathing apparatus with a full facepiece operated in a to train employees on how and when to use protective pressure-demand or other positive-pressure mode. equipment. QUESTIONS AND ANSWERS The following recommendations are only guidelines and may not apply to every situation. Q: If I have acute health effects, will I later get chronic health effects? Clothing A: Not always. Most chronic (long-term) effects result from * Avoid skin contact with Nitrogen Trifluoride. Wear repeated exposures to a chemical. protective gloves and clothing. Safety equipment suppliers/ manufacturers can provide recommendations on the most Q: Can I get long-term effects
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