| Formula / Notation | Be |
|---|---|
| CAS Number | 7440-41-7 |
| Molecular Weight | 9.01 |
| Melting Point | 1287.0 |
| Boiling Point | 2469.0 |
| Density | 1.85 |
| Solubility | Insoluble in water |
| Appearance | Hard, grey, lightweight metal with steel-grey lustre |
| Also Known As | Be, beryllium metal |
| Category | Elements |
What is Beryllium?
Beryllium is a hard, grey, lightweight alkaline earth metal, atomic number 4. Highly toxic - inhalation causes chronic beryllium disease (berylliosis). Found in beryl minerals (emeralds).
Formula & Notation
IUPAC Name: Beryllium
Other Names / Synonyms: Be, beryllium metal
Properties & Characteristics
Physical Data
| Property | Value |
|---|---|
| Melting Point | 1287.0 |
| Boiling Point | 2469.0 |
| Density | 1.85 |
| Molecular Weight | 9.01 |
| Solubility | Insoluble in water |
| Appearance | Hard, grey, lightweight metal with steel-grey lustre |
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
Beryllium is a hard, grey, lightweight alkaline earth metal, atomic number 4. Highly toxic - inhalation causes chronic beryllium disease (berylliosis). Found in beryl minerals (emeralds).
Aerospace structural components. X-ray windows (transparent to X-rays). Nuclear reactor neutron reflectors. Electronic springs and connectors. Satellite mirrors. Gemstones (beryl, emerald).
Highly toxic carcinogen (IARC Group 1). Inhalation causes berylliosis (incurable lung fibrosis). OSHA PEL: 0.2 ug/m3. Dermal contact causes granulomas. All machining requires enclosed ventilation.
The formula or notation for Beryllium is: Be