506-66-1 Usage
Description
Beryllium acetylide, also known as beryllium carbide (Be2C), is a compound with unique chemical and physical properties. It is characterized by its red cubic crystal structure, hardness, and high refractoriness. Beryllium acetylide has a density of 1.90 g/cm3 and decomposes when heated above 2,100°C. It also reacts with water, making it a chemically active substance.
Uses
Used in Nuclear Reactor Industry:
Beryllium acetylide is used as a core material in nuclear reactors due to its exceptional properties. Its high neutron reflectivity and low neutron absorption make it an ideal candidate for this application. The use of beryllium acetylide in nuclear reactors is documented in Schwartz, US 3170812 (1965 to USAEC).
Preparation
Beryllium 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
Check Digit Verification of cas no
The CAS Registry Mumber 506-66-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 5,0 and 6 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 506-66:
(5*5)+(4*0)+(3*6)+(2*6)+(1*6)=61
61 % 10 = 1
So 506-66-1 is a valid CAS Registry Number.
InChI:InChI=1/C.2Be/rCBe2/c2-1-3
