NIST1878B

Respirable alpha-quartz

NIST^® SRM^® 1878b, quantitative X-ray powder diffraction standard

• Synonym(s): Sand, white quartz, Quartz, Silicon dioxide
• Linear Formula: SiO₂
• CAS Number: 14808-60-7
• Molecular Weight: 60.08
• MDL number: MFCD00011232
• UNSPSC Code: 41116107
• PubChem Substance ID: 329818719
• NACRES: NA.24

Properties

• grade: certified reference material
• Quality Level: 100
• packaging: pkg of 5 g
• manufacturer/tradename: NIST^®
• technique(s): diffraction/scattering: suitable
• format: matrix material
• SMILES string: O=[Si]=O
• InChI: 1S/O2Si/c1-3-2
• InChI key: VYPSYNLAJGMNEJ-UHFFFAOYSA-N

Description

General description

The SRM material was prepared from single crystal nodules of Brazilian quartz that, upon comminution were reduced to a respirable powder with a median particle size of 3.3 µm.

Each unit of SRM 1878b contains approximately 5 g of powder bottled in an argon atmosphere.

SRM 1878B _SDS

SRM 1878B _CoA

Application

Respirable alpha-quartz standard reference material (SRM) is intended for the preparation of calibration standards used in quantitative analyses of α-quartz via X-ray powder diffraction.

Features and Benefits

• Available with a certificate documenting NIST-certified value of crystalline phase purity and lattice parameter. The information values include particle size distribution, as determined by laser scattering. 
• Certified values are metrologically traceable to the International System of Units (SI) and SI-derived units of mass fraction.
• The NIST certificate is provided with storage and use instructions

Other Notes

Please download a current certificate at nist.gov/SRM for current analytes and certified values.

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 Code: 13 - Non Combustible Solids
• WGK: nwg
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable