| Formula / Notation | B |
|---|---|
| CAS Number | 7440-42-8 |
| Molecular Weight | 10.81 |
| Melting Point | 2076.0 |
| Boiling Point | 3927.0 |
| Density | 2.34 |
| Solubility | Insoluble in water |
| Appearance | Dark brown amorphous powder or black crystalline solid |
| Also Known As | B, boron element |
| Category | Elements |
What is Boron?
Boron is a metalloid, atomic number 5. Does not occur as free element - found in borax and boric acid. Forms wide range of covalent compounds. B-10 is an excellent neutron absorber.
Formula & Notation
IUPAC Name: Boron
Other Names / Synonyms: B, boron element
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 2076.0 |
| Boiling Point | 3927.0 |
| Density | 2.34 |
| Molecular Weight | 10.81 |
| Solubility | Insoluble in water |
| Appearance | Dark brown amorphous powder or black crystalline solid |
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
Boron is a metalloid, atomic number 5. Does not occur as free element - found in borax and boric acid. Forms wide range of covalent compounds. B-10 is an excellent neutron absorber.
Borosilicate glass (Pyrex). Borax cleaning agent and flux. Boric acid insecticide. Nuclear reactor control rods. P-type semiconductor dopant. Boron carbide (B4C) abrasive. Boron nitride lubricant.
Low acute toxicity as element. Boric acid mildly toxic - avoid ingestion. Fine boron powder: dust explosion risk. Boron trifluoride (BF3) gas: corrosive and toxic.
The formula or notation for Boron is: B