Saltar al contenido
Merck
Todas las fotos(1)

Key Documents

View All Documentation

NIST1878B

Respirable alpha-quartz

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

Sinónimos:

Sand, white quartz, Quartz, Silicon dioxide

Iniciar sesiónpara Ver la Fijación de precios por contrato y de la organización
Todas las fotos(1)

About This Item

Fórmula lineal:
SiO2
Número de CAS:
14808-60-7
Peso molecular:
60.08
MDL number:
MFCD00011232
UNSPSC Code:
41116107
PubChem Substance ID:
329818719
NACRES:
NA.24

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

¿Está buscando productos similares? Visita Guía de comparación de productos

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

related product

Referencia del producto
Descripción
Precios

Storage Class

13 - Non Combustible Solids

wgk_germany

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

Elija entre una de las versiones más recientes:

Certificados de análisis (COA)

Lot/Batch Number

Lo sentimos, en este momento no disponemos de COAs para este producto en línea.

Si necesita más asistencia, póngase en contacto con Atención al cliente

¿Ya tiene este producto?

Encuentre la documentación para los productos que ha comprado recientemente en la Biblioteca de documentos.

Visite la Librería de documentos

L J Williams et al.
Environmental geochemistry and health, 42(7), 2137-2145 (2019-12-18)
Australian Aboriginal populations have unacceptably high rates of bronchiectasis. This disease burden is associated with high rates of detection of pathogenic bacteria, particularly non-typeable Haemophilus influenzae (NTHi). While there is evidence to suggest that exposure to inorganic particulate matter (PM)

Nuestro equipo de científicos tiene experiencia en todas las áreas de investigación: Ciencias de la vida, Ciencia de los materiales, Síntesis química, Cromatografía, Analítica y muchas otras.

Póngase en contacto con el Servicio técnico