NISTRM8557

NBS 127 (sulfur and oxygen isotopes in barium sulfate)

NIST^® RM 8557

• Synonym(s): Barium sulfate, Baryte
• Linear Formula: BaSO₄
• CAS Number: 7727-43-7
• Molecular Weight: 233.39
• MDL number: MFCD00003455
• UNSPSC Code: 12352200
• PubChem Substance ID: 329818801
• NACRES: NA.24

Properties

• grade: certified reference material
• Quality Level: 100
• isotopic purity: ¹⁸O; ³⁴S
• manufacturer/tradename: NIST^®
• format: matrix material
• SMILES string: [Ba++].[O-]S([O-])(=O)=O
• InChI: 1S/Ba.H2O4S/c;1-5(2,3)4/h;(H2,1,2,3,4)/q+2;/p-2
• InChI key: TZCXTZWJZNENPQ-UHFFFAOYSA-L

Description

General description

SRM 8557_cert

SRM 8557_SDS

Other Notes

Example analytes are listed below as a reference. Please download a current certificate at nist.gov/SRM for current analytes and certified values.
Analyte : Sulfur (³⁴S), Oxygen (¹⁸O)

Legal Information

NIST is a registered trademark of National Institute of Standards and Technology

SRM is a registered trademark of National Institute of Standards and Technology

Safety Information

• Storage Class: 13 - Non Combustible Solids
• wgk_germany: nwg
• flash_point_f: does not flash
• flash_point_c: does not flash