Decaborane

Decaborane
The three-dimensional structure of decaborane
Names
Other names
decaborane
decaboron tetradecahydride
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.037.904 Edit this at Wikidata
EC Number
  • 241-711-8
UNII
  • InChI=1S/B10H14/c11-5-1-2-3(1,5)7(2,9(3,5,11)13-7)8(2)4(1,2)6(1,5)10(4,8,12-6)14-8/h1-10H checkY
    Key: XAMMYYSPUSIWAS-UHFFFAOYSA-N checkY
  • InChI=1/B10H14/c11-5-1-2-3(1,5)7(2,9(3,5,11)13-7)8(2)4(1,2)6(1,5)10(4,8,12-6)14-8/h1-10H
    Key: XAMMYYSPUSIWAS-UHFFFAOYAD
  • [H]1[BH]234[BH]156[BH]278[BH]39([H]4)[BH]712[BH]853[BH]645[BH]311[BH]922[BH]14([H]5)[H]2
Properties
B10H14
Molar mass 122.22 g/mol
Appearance White crystals
Odor bitter, chocolate-like or burnt rubber[1]
Density 0.94 g/cm3[1]
Melting point 97–98 °C (207–208 °F; 370–371 K)
Boiling point 213 °C (415 °F; 486 K)
Solubility in other solvents Slightly, in cold water. [1]
Vapor pressure 0.2 mmHg[1]
Hazards
Occupational safety and health (OHS/OSH):
Main hazards
 may ignite spontaneously on exposure to air[1]
GHS labelling:
GHS02: FlammableGHS06: ToxicGHS07: Exclamation markGHS08: Health hazard
Danger
H228, H301, H310, H316, H320, H330, H335, H336, H370, H372
P210, P240, P241, P260, P261, P262, P264, P270, P271, P280, P284, P301+P310, P302+P350, P304+P340, P305+P351+P338, P307+P311, P310, P312, P314, P320, P321, P322, P330, P332+P313, P337+P313, P361, P363, P370+P378, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 3: Short exposure could cause serious temporary or residual injury. E.g. chlorine gasFlammability 2: Must be moderately heated or exposed to relatively high ambient temperature before ignition can occur. Flash point between 38 and 93 °C (100 and 200 °F). E.g. diesel fuelInstability 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g. white phosphorusSpecial hazard W: Reacts with water in an unusual or dangerous manner. E.g. sodium, sulfuric acid
3
2
2
W
Flash point 80 °C; 176 °F; 353 K
149 °C (300 °F; 422 K)
Lethal dose or concentration (LD, LC):
276 mg/m3 (rat, 4 hr)
72 mg/m3 (mouse, 4 hr)
144 mg/m3 (mouse, 4 hr)[2]
NIOSH (US health exposure limits):
PEL (Permissible)
 TWA 0.3 mg/m3 (0.05 ppm) [skin][1]
REL (Recommended)
 TWA 0.3 mg/m3 (0.05 ppm) ST 0.9 mg/m3 (0.15 ppm) [skin][1]
IDLH (Immediate danger)
 15 mg/m3[1]
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Decaborane, also called decaborane(14), is the inorganic compound with the chemical formula B10H14. It is classified as a borane and more specifically a boron hydride cluster. This white crystalline compound is one of the principal boron hydride clusters, both as a reference structure and as a precursor to other boron hydrides. It is toxic and volatile, giving off a foul odor, like that of burnt rubber or chocolate.

  1. ^ a b c d e f g h NIOSH Pocket Guide to Chemical Hazards. "#0175". National Institute for Occupational Safety and Health (NIOSH).
  2. ^ "Decaborane". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).