12255-04-8 Usage
General Description
Lanthanum arsenide is a compound made up of the lanthanum and arsenic elements. It is a semiconductor material with potential applications in electronic and optical devices. Lanthanum arsenide has a high electron mobility and low effective mass, making it suitable for use in high-speed and low-power electronics. It also has a narrow band gap, which makes it suitable for use in infrared photodetectors and other optoelectronic devices. Lanthanum arsenide has been the subject of research for its potential use in various technological applications due to its unique electronic and optical properties.
Check Digit Verification of cas no
The CAS Registry Mumber 12255-04-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,5 and 5 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 12255-04:
(7*1)+(6*2)+(5*2)+(4*5)+(3*5)+(2*0)+(1*4)=68
68 % 10 = 8
So 12255-04-8 is a valid CAS Registry Number.
12255-04-8Relevant articles and documents
Quaternary rare earth transition metal arsenide oxides RTAsO (T = Fe, Ru, Co) with ZrCuSiAs type structure
Quebe,Terbuechte,Jeitschko
, p. 70 - 74 (2008/10/08)
The equiatomic quaternary compounds RFeAsO (R = La-Nd, Sm, Gd), RRuAsO (R = La-Nd, Sm, Gd-Dy) and RCoAsO (R = La-Nd) crystallize with the tetragonal ZrCuSiAs type structure, which was refined from single-crystal X-ray diffractometer data of PrFeAsO: P4/nmm, Z = 2, a = 398.5(1) pm, c = 859.5(3) pm, R = 0.058 for 167 structure factors and 12 variable parameters. All atomic positions are fully occupied. Chemical bonding in PrFeAsO can be rationalized with oxidation numbers corresponding to the formula Pr+3Fe+2As-3O-2. An electron count of 18 for the iron atoms can only be achieved if Fe-Fe interactions of 281.8 pm pm are considered as bonding.
