Boron trichloride, with the CAS number 10294-34-5, is a chemical compound with the formula BCl₃. It is commonly used in the semiconductor industry and in the production of high-purity boron. Here are some characteristics of boron trichloride:
Physical Properties:
Appearance: Boron trichloride is a colorless liquid under normal conditions, but it can appear yellowish due to impurities or decomposition.
Boiling Point: 12.5 °C (54.5 °F; 285.65 K) at standard atmospheric pressure.
Melting Point: -107.2 °C (-161.0 °F; 165.95 K).
Density: 1.28 g/cm³ at 20 °C.
Solubility: It is soluble in organic solvents and non-aqueous media but reacts with water.
Chemical Properties:
Reactivity: Boron trichloride is highly reactive, particularly with water and moisture in the air, producing hydrochloric acid (HCl) and boric acid (H₃BO₃).
Hygroscopicity: It is hygroscopic, meaning it readily absorbs moisture from the air.
Flammability: It is not flammable itself but can contribute to the combustion of combustible materials.
Uses:
Semiconductor Industry: Used as a dopant in the production of semiconductors.
Boron Compounds Synthesis: A precursor in the synthesis of boron carbide, boron nitride, and other boron-containing compounds.
Organic Synthesis: A reagent in organic chemistry for various reactions.
Health and Safety:
Toxicity: Boron trichloride is toxic and corrosive. Inhalation, ingestion, or skin contact can cause serious health issues.
Handling: It should be handled in a well-ventilated area, using appropriate personal protective equipment (PPE) such as gloves, goggles, and a respirator.
Storage: Should be stored in a cool, dry place, away from incompatible substances and moisture.
Suppliers:
There are several suppliers of boron trichloride around the world. These include major chemical manufacturers and distributors who specialize in supplying materials for the semiconductor and electronics industries.
These companies provide boron trichloride in various grades and purities suitable for different applications. When sourcing boron trichloride, it is important to ensure compliance with local regulations and safety standards. Always consult the Material Safety Data Sheet (MSDS) or Safety Data Sheet (SDS) for proper handling and storage instructions.
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