625: X-Ray Mix®, 1/4gm Tablets; 500 tablets per bottle
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Most powdered sample substances are considered multi-phased or compositionally complex. They are comprised of individual particles or crystal phases frequently dissimilar in composition, density, hardness, configuration, size and distribution. Each particle tends to behave as a separate entity from its surrounding constituents. Chemplex grinding and briquetting additives are formulated to aid in the grinding and briquetting process by reducing particles to a uniform size and distribution forming a homogeneous sample blend for XRF analysis. Under briquetting pressure, the powdered samples are transformed into "plasticized" pellets with smooth unblemished surfaces resistant to inadvertent chipping or flaking apart. Samples may be saved for future referral.
Features
• Improve powdered sample preparations
• Reduce particles to uniform size and distribution
• Promote sample homogeneity
• Transform powders into “Plasticized” pellets
• Resolve sample pellet chipping or flaking
• Bulk or Preweighted tablets
X-Ray Mix®: General purpose grinding agent is balanced for abrasiveness and lubricity to aid in grinding dissimilar particles of moderate hardness for relatively short times. Highly "plasticizes" and firmly bonds samples together under briquetting pressure. Available in pre-weighed tablets for ease of dispensing or bulk powder well suited for blending and as a diluent for high concentrations.
Most powdered sample substances are considered multi-phased or compositionally complex. They are comprised of individual particles or crystal phases frequently dissimilar in composition, density, hardness, configuration, size and distribution. Each particle tends to behave as a separate entity from its surrounding constituents. Chemplex grinding and briquetting additives are formulated to aid in the grinding and briquetting process by reducing particles to a uniform size and distribution forming a homogeneous sample blend for XRF analysis. Under briquetting pressure, the powdered samples are transformed into "plasticized" pellets with smooth unblemished surfaces resistant to inadvertent chipping or flaking apart. Samples may be saved for future referral.
® X-Ray Mix and Chemplex are registered trademarks of Chemplex Industries, Inc.
Preparing Samples
In preparing powdered samples requiring a grinding or briquetting additive, it is most advantageous to use the least amount of additive to minimize the effects of dilution unless the use of the additive is for dilution purposes.
As a starting point, use 1.0 to 2.5 wt % additive of the sample weight, e.g. 0.1 to 0.25 gm additive, to 10 gm sample. Adjust the amount of additive until the desired results are obtained. Alternatively, the additive weight may be held constant and the sample weight quantity varied for applications that will be utilizing the convenience of pre-weighed tablets. To maintain compatibility, standards should be similarly prepared. Note: Some additives may reportedly contain trace elements that may potentially interfere with a given analysis. It is suggested that a "Blank" is run to evaluate the presence and interference level prior to an analytical investigation. Chempical Composition
• C: 48.7% • O: 42.6% • H: 8.1% • B: 0.6% |
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