NIOSH Pocket Guide to Chemical Hazards


CAS 17702-41-9


RTECS HD1400000
Synonyms & Trade Names
Decaboron tetradecahydride
DOT ID & Guide
1868 134


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 See: IDLH INDEX 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
See: NMAM or OSHA Methods
Personal Protection & Sanitation (See protection)
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
Important additional information about respirator selection
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
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister having an N100, R100, or P100 filter. Click here for information on selection of N, R, or P filters./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   See ICSC CARD: 0712