# NIOSH Pocket Guide to Chemical Hazards
Decaborane | CAS 17702-41-9
B10H14 | RTECS HD1400000
Synonyms & Trade Names Decaboron tetradecahydride | DOT ID & Guide 1868 134
Exposure Limits | NIOSH REL: TWA 0.3 mg/m3 (0.05 ppm) ST 0.9 mg/m3 (0.15 ppm) [skin]
OSHA PEL†: TWA 0.3 mg/m3 (0.05 ppm) [skin]
IDLH 15 mg/m3 | Conversion 1 ppm = 5.00 mg/m3
Physical Description Colorless to white crystalline solid with an intense, bitter, chocolate-like odor.
MW: 122.2 | BP: 415°F | MLT: 211°F | Sol: Slight
VP: 0.2 mmHg | IP: 9.88 eV |  | Sp.Gr: 0.94
Fl.P: 176°F | UEL: ? | LEL: ? |
Combustible Solid
Incompatibilities & Reactivities Oxidizers, water, halogenated compounds (especially carbon tetrachloride) [Note: May ignite SPONTANEOUSLY on exposure to air. Decomposes slowly in hot water.]
Measurement Methods None available
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated/Daily Remove: When wet or contaminated Change: Daily Provide: Eyewash, Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash immediately Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA Up to 3 mg/m3: (APF = 10) Any supplied-air respirator Up to 7.5 mg/m3: (APF = 25) Any supplied-air respirator operated in a continuous-flow mode Up to 15 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 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 Dizziness, headache, nausea, drowsiness; incoordination, localized muscle spasm, tremor, convulsions; lassitude (weakness, exhaustion); in animals: dyspnea (breathing difficulty); lassitude (weakness, exhaustion); liver, kidney damage
Target Organs central nervous system, liver, kidneys
See also: INTRODUCTION