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subject to revision as additional knowledge and experience are gained.DuPont makes no guarantee of <br /> results and assumes no obligation or liability... <br /> (DuPont,2013) <br /> First Aid <br /> Eye: If this chemical in liquid form or in solution contacts the eyes,immediately wash the eyes with large <br /> amounts of water, occasionally lifting the lower and upper lids. Get medical attention immediately. Contact <br /> lenses should not be worn when working with this chemical. <br /> Skin: If this chemical in solution or in liquid form contacts the skin, immediately flush the contaminated skin <br /> with water.If this chemical penetrates the clothing,immediately remove the clothing and flush the skin with <br /> water. Get medical attention promptly. <br /> Breathing: If a person breathes large amounts of this chemical, move the exposed person to fresh air at once. If <br /> breathing has stopped,perform mouth-to-mouth resuscitation. Keep the affected person warm and at rest. Get <br /> medical attention as soon as possible. <br /> Swallow: If this chemical in solution has been swallowed, get medical attention immediately. (NIOSH, 1997) <br /> Physical Properties <br /> Chemical Formula: BF(aqueous) <br /> Flash Point:data unavailable <br /> Lower Explosive Limit(LEL): data unavailable <br /> Upper Explosive Limit(UEL):data unavailable <br /> Autoignition Temperature: Not flammable(USCG, 1999) <br /> Melting Point: -118 'F(NIOSH,2003) <br /> Vapor Pressure: 783 mm.Hg(NIOSH, 2003) <br /> Vapor Density(Relative to Air):data unavailable <br /> Specific Gravity: data unavailable <br /> Boiling Point: 152'F at 760.0 mm.Hg(USCG, 1999) <br /> Molecular Weight: 20(NIOSH, 2003) <br /> Water Solubility:Miscible(NIOSH, 2003) <br /> IDLH: 30 ppm(NIOSH,2003) <br /> AEGLs(Acute Exposure Guideline Levels) <br /> Final AEGLs forHydrogen fluoride(7664-39-3) <br /> ........................­­............. <br /> ........... <br /> Exposure <br /> Period 1 AEGL-1 AEGL-2 I AEGL-31 <br /> --—--------------------------- <br /> 10 minutes 1 ppm 95 ppm _ 170 ppm <br /> ............ <br /> 30 minutes <br /> P l pprnl 34 ppm 62 ppm <br /> 60 minutes l ppm 24 ppm z 44 ppm <br /> ............... ..........__-, .............. <br /> 4 hours Appm 1 12 ppm 122 ppm <br /> ............... <br /> http://127.0.0.1:54673/report?key=CH2013 4/15/2015 <br />