Line position and line shape standard for powder diffraction
SIAL/NIST660C - NIST® SRM® 660c, Lanthanum hexaboride powder
Synonym: Lanthanum hexaboride; Lanthanum boride
CAS Number: 12008-21-8
Empirical Formula (Hill Notation): B6La
Molecular Weight: 203.77
EC Number: 234-531-6
MDL Number: MFCD00151350
Linear Formula: LaB6
Product Type: Chemical
| application(s) | pharmaceutical (small molecule) |
| density | 2.61 g/cm3 at 25 °C (lit.) |
| form | powder |
| grade | certified reference material |
| InChI | 1S/B6.La/c1-2-5(1)3-4(5)6 |
| InChI key | VJXOKIULCJPJLW-UHFFFAOYSA |
| manufacturer/tradename | NIST® |
| mp | 2210 °C |
| packaging | pkg of 6 g |
| Quality Level | 100  |
| SMILES string | [La++].B12B3[B-]14B5B4[B- |
| Application: | This Standard Reference Material (SRM) is intended for use in calibration of diffraction line positions and line shapes determined through powder diffractometry. |
| Features and Benefits: | • A unit of SRM 660c consists of approximately 6 g of lanthanum hexaboride, LaB6, powder bottled under argon gas • Information on product description, disposal, and transportation is available in the accompanying MSDS • The enclosed NIST certificate contains details on the expiry date, warning to users, instructions for right storage and use, preparation, and analysis of the RM • Certified values and uncertainties calculated according to the method described in the ISO/JCGM Guide • Metrological traceability is to the SI unit for length (expressed as nanometers) |
| General description: | The SRM was prepared in a dedicated processing run using the 11B isotope enriched to a nominal 99 % concentration. This isotopic enrichment renders this SRM relevant to the neutron diffraction community. The resulting powder was then annealed and bottled under argon. Certification was performed using data from a NIST-built diffractometer, with analyses via the fundamental parameters approach (FPA) using the Rietveld method. The certification of SRM 660c is valid indefinitely, provided the SRM is handled and stored in accordance with the instructions given in the “Instructions for Storage and Use”. For more information, please refer to the COA and SDS. SRM 660c_cert  SRM 660c _SDS |
| Legal Information: | NIST is a registered trademark of National Institute of Standards and Technology |
| Legal Information: | SRM is a registered trademark of National Institute of Standards and Technology |
| RIDADR | NONH for all modes of transport |
| WGK Germany | WGK 3 |
| Flash Point(F) | Not applicable |
| Flash Point(C) | Not applicable |
| mp | 2210 °C |
| Density | 2.61 g/cm3 at 25 °C (lit.) |
| UNSPSC | 41116107 |