Basic information
- CAS
506-66-1- Standard SMILES
[Be]=[C]=[Be]- InChIKey
UQVOJETYKFAIRZ-UHFFFAOYSA-N- Molecular formula
- CBe2
- Average molar mass
- 30.035 g/mol
- Monoisotopic mass
- 30.024366
Names & identifiers
- Preferred name
- Beryllium carbide
- English name
- Beryllium carbide
- Molecular formula
- C2Be
- Molecular weight
- 33.033582
Names & synonyms
Beryllium carbide506-66-1Beryllium carbide (Be2C)Beryllium acetylideUNII-F5D2F26ONXEINECS 208-050-7F5D2F26ONXDTXSID6060137SCHEMBL29354122NS00125761Q411605Beryllium dicarbide
Show more names
1,3-DiberyllapropadieneMethanetetrayldiberyllium
Database identifiers
- CAS
506-66-1- PubChem CID
- 68173
- DTXSID
DTXSID6060137- EC Number
- 208-050-7
- Nikkaji
- J358.696K
Properties
Computed structural properties
- Topological polar surface area
- 0 Ų
- Hydrogen bond donors
- 0
- Hydrogen bond acceptors
- 0
- Rotatable bonds
- 0
- Heavy atoms
- 3
- Formal charge
- 0
- Complexity
- 18.3
Experimental & physicochemical properties
Chemical ClassesMetals -> Beryllium Compounds, Inorganic
Physical DescriptionBrick-red or yellow-red solid; [Merck Index] Yellow odorless powder; [MSDSonline]
Physicochemical properties
- Melting point
- 2100 ℃ · decomposes at >2100℃ [MER06]
- Density
- 1.9 · 1.90
- solubility
- 2 O · reacts with H2O
- form
- red cubic crystals
- color
- red cubic crystals, crystalline
- Water Solubility
- 2 O; · decomposed very slowly by H2O; hydrolysis yields methane and beryllium hydroxide [KIR78] [MER06]
- Thermal Conductivity
- 23.43 W/ · 23.43 W/(m·K)
- Crystal Structure
- Cubic
- CAS DataBase Reference
- 506 · 506-66-1
- FDA UNII
- 5 D2F26ONX · F5D2F26ONX
- EPA Substance Registry System
Safety & regulation
Safety information is for reference only and does not replace the supplier’s Safety Data Sheet (SDS), applicable regulations, or professional assessment.
Hazard information
Hazards Summary
Hydrolyzes at room temperature into beryllium oxide and methane; [Ullmann] Produces flammable gases on contact with water; An irritant; May cause skin sensitization; Repeated or prolonged exposure may cause chronic beryllium disease; [MSDSonline] See CARBIDES. See Beryllium for one additional linked occupational disease.
Safety & protection
Threshold Limit Values (TLV)0.00005 [mg/m3], as Be, inhalable fraction
Permissible Exposure Limit (PEL)0.002 [mg/m3], as Be, Ceiling(OSHA) = 0.005 mg/m3, as Be(0.025 mg/m3,as Be,for 30 min.peak per 8-hr shift)
Immediately Dangerous to Life or Health (IDLH)4.0 [mg/m3], as Be
Toxicology
Adverse EffectsFibrogenic - Inducing tissue injury and fibrosis (scarring).
Safety data
- tsca
- TSCA listed
- ridadr
- 1566
- hazard_class
- 6.1(b)
- packing_group
- III
Chemistry & industry
Uses & manufacturing
UsesUsed in nuclear reactor cores; [Merck Index]
General Manufacturing InformationBeryllium carbide (Be2C): INACTIVE
Applications
UsesBeryllium acetylide is used in a nuclear reactor as core material,Nuclear reactor core material: Schwartz.
UsesNuclear reactor core material: Schwartz, US 3170812 (1965 to USAEC).
UsesBeryllium carbide (Be2C) is used for the cores in nuclear reactors.
Preparation methods
PreparationBeryllium carbide is prepared by heating the elements beryllium and carbon at elevated temperatures (above 900°C). It also may be prepared by reduction of beryllium oxide with carbon at a temperature above 1,500°C: 2BeO + 3C → (1500℃)→ Be2C + 2CO Beryllium carbide decomposes very slowly in water: Be2C + 2H2O → 2BeO + CH4 The rate of decomposition is faster in mineral acids with evolution of methane. However, in hot concentrated alkalies the reaction is very rapid, forming alkali metal beryllate and methane: Be2C + 4NaOH → 2Na2BeO2 + CH4
Upstream & downstream products
Upstream raw materials
Suppliers2 total
Shaanxi Didu New Materials Co. Ltd
Related reactions
0 records
No reaction records under the current filter.
Compound notes
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