Leaks boron trifluoride

Boron trtfluorlde forms complexes with ether, acidic acid, phenol, etc. Forms monohydrate and/or dIhydrate with substandard water. The cfihydrate is a corrosive liquid with melting point at 6 C. TLV is maximum and must not be exceeded. Lung edema symptoms usually develop several hours later and are aggravated by ph ical exertion rest and hospitalization essential. Do not spray leaking cylinder wittt water (to avoid corrosion). The boron trifluoride dltq rate has HI no. 80 and UN no. 2851. 

Boron Trifluoride - BF3, 7637-07-2 inhalation poison, irritant, nonflammable bp = -100"C [-148"F] er = NA sp g = 2.3 ceiling PEL = 1 ppm. irritating to eyes and respiratory system. Animals have been shown to have kidney damage after high exposures. Baseline physical should stress respiratory system, eyes, and kidneys. Tests should include a chest X-ray, pulmonary function test. Cylinders with a slow leak can be allowed to leak into an efficient fume hood for disposal, or seal the cylinder and return to the vendor. Produces a thick white smoke by interaction with moisture in humid air, but otherwise insufficient data on warning properties. On EPA hst of extremely hazardous substances, 40 CFR Section 302. 

In the event of accidental release of boron trifluoride gas, evacuate the area, and if the cause of the release is a leaking cylinder, remove the cylinder to a fume hood or open area if it is possible to do so safely. Positive pressure air-supplied respiratory protection and protective elothing may be necessary to deal with a leaking cylinder of boron trifluoride, and emergency response personnel should be notified. 

Leaks can readily be detected by the dense white fumes formed by boron trifluoride in moist air or by its sharp and irritating odor. Emergency personnel equipped with complete breathing, eye, and skin protective equipment are the only ones who should respond to correct leaks others should leave the area at once until the leak(s) have been stopped and the area has been thoroughly purged of vapors and secured. Emergency procedures for dealing with leaks should be fully established and practiced in advance. 

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See also in sourсe #XX -- [ ]

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