# NIOSH Pocket Guide to Chemical Hazards
Tetranitromethane | CAS 509-14-8
C(NO2)4 | RTECS PB4025000
Synonyms & Trade Names Tetan, TNM | DOT ID & Guide 1510 143
Exposure Limits | NIOSH REL: TWA 1 ppm (8 mg/m3)
OSHA PEL: TWA 1 ppm (8 mg/m3)
IDLH 4 ppm | Conversion 1 ppm = 8.02 mg/m3
Physical Description Colorless to pale-yellow liquid or solid (below 57°F) with a pungent odor.
MW: 196.0 | BP: 259°F | FRZ: 57°F | Sol: Insoluble
VP: 8 mmHg | IP: ? |  | Sp.Gr: 1.62
Fl.P: ? | UEL: ? | LEL: ? |
Combustible Liquid, but difficult to ignite.
Incompatibilities & Reactivities Hydrocarbons, alkalis, metals, oxidizers, aluminum, toluene, cotton [Note: Combustible material wet with tetranitromethane may be highly explosive.]
Measurement Methods NIOSH 3513
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet (flammable) Change: Daily Provide: Eyewash | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash promptly Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA Up to 4 ppm: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode£/(APF = 50) Any chemical cartridge respirator with a full facepiece and cartridge(s) providing protection against the compound of concern¿/(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted canister providing protection against the compound of concern¿/(APF = 25) Any powered, air-purifying respirator with cartridge(s) providing protection against the compound of concern¿£/(APF = 50) Any self-contained breathing apparatus with a full facepiece/(APF = 50) Any supplied-air respirator with a full facepiece 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 canister providing protection against the compound of concern¿/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation eyes, skin, nose, throat; dizziness, headache; chest pain, dyspnea (breathing difficulty); methemoglobinemia, cyanosis; skin burns
Target Organs Eyes, skin, respiratory system, blood, central nervous system
See also: INTRODUCTION