# NIOSH Pocket Guide to Chemical Hazards
Nitroglycerine | CAS 55-63-0
CH2NO3CHNO3CH2NO3 | RTECS QX2100000
Synonyms & Trade Names Glyceryl trinitrate; NG; 1,2,3-Propanetriol trinitrate; Trinitroglycerine | DOT ID & Guide 1204 127 (</= 1% solution in alcohol) 3064 127 (1-5% solution in alcohol)
Exposure Limits | NIOSH REL: ST 0.1 mg/m3 [skin]
OSHA PEL†: C 0.2 ppm (2 mg/m3) [skin]
IDLH 75 mg/m3 | Conversion 1 ppm = 9.29 mg/m3
Physical Description Colorless to pale-yellow, viscous liquid or solid (below 56°F). [Note: An explosive ingredient in dynamite (20-40%) with ethylene glycol dinitrate (80-60%).]
MW: 227.1 | BP: Begins to decompose at 122-140°F | FRZ: 56°F | Sol: 0.1%
VP: 0.0003 mmHg | IP: ? |  | Sp.Gr: 1.60
Fl.P: Explodes | UEL: ? | LEL: ? |
Explosive Liquid
Incompatibilities & Reactivities Heat, ozone, shock, acids [Note: An OSHA Class A Explosive (1910.109).]
Measurement Methods NIOSH 2507; OSHA 43
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: Daily Provide: Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH Up to 1 mg/m3: (APF = 10) Any supplied-air respirator* Up to 2.5 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode* Up to 5 mg/m3: (APF = 50) Any supplied-air respirator that has a tight-fitting facepiece and is operated in a continuous-flow mode*/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece Up to 75 mg/m3: (APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having a high-efficiency particulate filter/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms Throbbing headache; dizziness; nausea, vomiting, abdominal pain; hypotension; flush; palpitations; methemoglobinemia; delirium, central nervous system depression; angina; skin irritation
Target Organs cardiovascular system, blood, skin, central nervous system
See also: INTRODUCTION