Skip to Content
Merck
CN

NIST1878B

Respirable alpha-quartz

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

Synonym(s):

Sand, white quartz, Quartz, Silicon dioxide

Sign In to View Organizational & Contract Pricing.

Select a Size

About This Item

Linear Formula:
SiO2
CAS Number:
14808-60-7
Molecular Weight:
60.08
NACRES:
NA.24
PubChem Substance ID:
329818719
UNSPSC Code:
41116107
MDL number:
MFCD00011232

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

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

InChI

1S/O2Si/c1-3-2

SMILES string

O=[Si]=O

InChI key

VYPSYNLAJGMNEJ-UHFFFAOYSA-N

grade

certified reference material

packaging

pkg of 5 g

manufacturer/tradename

NIST®

technique(s)

diffraction/scattering: suitable

format

matrix material

Quality Level

100

Looking for similar products? Visit Product Comparison Guide

Related Categories

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

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

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

Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)

Related Content

最新推出的满足海关审查要求的标准物质

默克Supelco®标准物质不断推出或更新满足海关及法规要求的标准物质。每年我们约有上百种的新CRM或标准物质上市，在此我们尽可能多的列出满足海关及法规要求的标准物质。

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service