106.7 Zeolites (powder form)
These
RMs are intended to provide a common source of zeolite materials for measurement
comparisons. Additional reference and information values are provided for atomic
ratios of Si to Al and Na to Al, trace element content, enthalpy of formation,
unit cell parameters and particle size distributions. Figures are provided showing
spectra for NMR analyses, plots of particle size distribution, electron microscope
images of particles and plots of variation in sample mass with change in ambient
humidity.
Technical Contact: shirley.turner@nist.gov
PLEASE
NOTE: The tables are presented to facilitate comparisons among a family of materials
to help customers select the best SRM for their needs. For specific values and
uncertainties, the certificate is the only official source.
- View Detail 
- View Report of Investigation 
- View MSDS | |||||||||||
| | |||||||||||
| Major Components of Zeolite RMs (mass fractions are
given in %)* | |||||||||||
| RM | Type | Unit Size (in g) | Na | Al | Si** | Si*** | LOI | LOF | |||
| | |||||||||||
| | | | 8850 | Zeolite Y | 35
- 40 | 7.225 | 8.49 | 22.52 | 30.336 | 25.679 | 25.37 |
| | | | 8851 | Zeolite A | 35
- 40 | 12.732 | 14.766 | 15.27 | 19.541 | 21.464 | 22.1 |
| | | | 8852 | Ammonium ZSM-5 | 35
- 40 | --- | 1.396 | 41.18 | 45.19 | 8.5 | 8.47 |
| *See current
certificate of analysis for exact assigned values and estimates of uncertainty.
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