- Decaboron tetradecahydride
- Boron hydride
White crystals or colorless crystalline needles with an intense, bitter, chocolate-like odor.
In rocket propellants, as catalyst in olefin polymerization.
Registry Numbers and Inventories.
Swiss Giftliste 1
Melting point, °C
98 - 99
Boiling point, °C
Vapor pressure, mmHg
0.05 (25 C)
Vapor density (air=1)
Odor Threshold Odor threshold 0.35 ppm
Solubility in water
Heat of vaporization
Heat of combustion
Hazards and Protection.
Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.
Use spark-proof tools and explosion proof equipment. Do not breathe dust, vapor, mist, or gas. Do not get in eyes, on skin, or on clothing. Use only in a chemical fume hood.
Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective clothing to prevent skin exposure.
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Vacuum or sweep up material and place into a suitable disposal container. Remove all sources of ignition. Use a spark-proof tool.
Stable under normal temperatures and pressures.
Oxidizing agents, carbon disulfide, carbontetrachloride, oxygen, halogenated agents, amides (e.g. butyramide, diethyltoluamide, dimethyl formamide), acetone.
Hydrogen gas, boron oxides.
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Reacts with water to form explosive hydrogen gas. Flammable solid. May explode when heated. Extinguishing media: Use carbon dioxide or dry chemical.
Moderately flammable. Combustion with moderate heating.
Decaborane mixed with carbon tetrachloride is dangerously shock sensitive. It reacts slowly with air but when mixed with air or oxygen, it becomes highly flammable and may explode. It undergoes an explosive reaction with most oxidizing agents including halogenated hydrocarbons. It may give off toxic fumes of unburned material. When heated to decomposition, it emits toxic fumes of boron oxides. Incompatible with ethers; halocarbons; oxygen at 212F; dimethyl sulfoxide, most oxidizing agents, including halogenated hydrocarbons. It is corrosive to natural rubber, some synthetic rubbers, some greases, and some lubricants. Normally stable, but becomes unstable at elevated temperature and pressure.
Toxic gases and vapors (such as boron oxide smoke) may be released in a fire involving decaborane.
OSHA PEL: TWA 0.3 mg/m3 (0.05 ppm) skin NIOSH REL: TWA 0.3 mg/m3 (0.05 ppm) ST 0.9 mg/m3 (0.15 ppm) skin NIOSH IDLH: 15 mg/m3
Cough, wheezing, rapid breathing, mild elevated blood pressure, or fever may be noted after exposure to the boron hydrides, but decaborane is generally less active than diborane for effects on respiration. Dizziness, weakness, CNS depression and excitation, hallucinations, and incoordination have been seen. Mental deficits have been produced by acute exposures. Gross tremors, hypoglossal spasms, and unusual positioning of the hands have been seen in decaborane intoxication. Seizures have occurred in experimental animals. Pentaborane is more active for neurological effects than diborane. No data were found for possible effects on teratogenesis, pregnancy, or lactation.
Poison by ingestion.
May be fatal if inhaled. May cause nausea, dizziness, and headache.
Toxic in contact with skin.
May cause eye irritation.
Get medical aid immediately. Wash mouth out with water.
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
Get medical aid immediately. Immediately flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
USCG CHRIS Code
Std. Transport #