Diborane Information

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Diborane

Other Names

Boroethane

Chemical Formula

B2H6

CAS Number

19287-45-7

Industry Uses

Rocket Propellant; Electronics

Health Risks

Irritant: Skin, eyes, throat, and airway; Coughing, shortness of breath; lung and kidney damage

Vapor Pressure

39.5 atm

Water Solubility

Decomposes

Flammability

Very Flammable

Odor

Repulsive, Sweet

Diborane MSDS

What is Diborane?

Diborane is a colorless gas with a repulsive, sweet odor. It is highly unstable as it mixes easily with air and forms explosive mixtures. Diborane ignites spontaneously in moist air at room temperature. Diborane is used in rocket propellants, as a reducing agent, catalyst for hydrocarbon polymerization, and as a doping agent. It also is used in electronics to impart electrical properties to pure crystals. Diborane is extremely flammable and may explode if heated under pressure. It is a strong irritant and is toxic if inhaled causing organ damage.

Diborane Exposure and Health Risks

Diborane is toxic when inhaled. Whether short term exposure to high concentrations or long term exposure to low concentrations, diborane inhalation will result in adverse health effects like organ damage. Symptoms can appear immediately, but can be delayed for hours after exposure. Symptoms of diborane exposure include wheezing, coughing, shortness of breath, and chest pain. Diborane is highly toxic whether by inhalation, skin absorption, or ingestion. Lung and kidney damage is likely in the case of diborane poisoning. Diborane is a strong irritant, causing damage to skin, eyes, and mucous membranes.

Regulations

The table below summarizes the most-recent exposure limits.

Limit/Level

Type

Organization

Not Recommended

AEGL-1 (8 hrs)

EPA

2.0 ppm

AEGL-2 (10 min)

EPA

0.13 ppm

AEGL-2 (8 hrs)

EPA

7.3 ppm

AEGL-3 (10 min)

EPA

0.46 ppm

AEGL-3 (8 hrs)

EPA

0.1 ppm

TWA (8 hrs)

NIOSH

0.1 ppm

TWA (8 hrs)

OSHA

Sources: NIOSH, EPA

Measuring Diborane

Diborane concentration in the air can be measured in units of parts per million (ppm). We carry portable and fixed diborane monitors and kits, and all of our diborane products can be viewed HERE.

Contact us for help choosing the right monitor for your application