chemical purity

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chemical purity,

n the degree to which a substance is undiluted or unmixed with extraneous material, typically expressed as a percentage (%).
References in periodicals archive ?
Because of its high chemical purity, D-0 meets the requirements of the law with respect to rubber applications in the food sector (BGA).
It also offers a low thermal conductivity, electrical insulation, high chemical purity and resistance to corrosion from molten metal and glass.
The committee is divided into a "Standing Committee" which prepares and adopts legislation, and an "Experts Committee" which discusses health hazards, environmental impact, chemical purity, etc.
Products are reported to have high chemical purity, whiteness, consistent particle size and an absence of abrasive impurities.
The CEP procedure assesses and concludes suitability of monographs to control the chemical purity and quality for any substance covered by a European Pharmacopoeia monograph; and checks compliance at the manufacturing and/or distribution site(s) covered by CEPs with both Good Manufacturing Practices for medicinal products and the information submitted in the application.
Used in silicon wafer factories, the system ensures chemical purity and precision delivery to maximize the efficiency and uptime of the production facility.
This is surprising, since the synthetic clay is produced to a level of mineralogical and chemical purity unattainable by its natural counterparts.
The vendor should certify the chemical purity of the raw materials and should be contractually bound to inform you of any change in formulation or in the primary ingredients.
The product, therefore, will reflect any variation in the feed consistency from the point of view of color or chemical purity.
Metallurgy of pure metals is concerned with the refining and preparation of high-purity substances, with special emphasis not only on the high degree of chemical purity attainable by chemical or physical methods (hydrometallurgy, sorption, extraction, crystallisation from aqueous solutions, electrolysis) and also by pyrometallurgical methods (crystallisation from melts, evaporation, condensation and transport reactions, electrotransfer, diffusion separation of substances, removal of gases from metals, and vacuum refining of metals).
chemicals has been certified by the same chemical analysis company as EEStor's press release dated January 17, 2007 and now indicates that EEStor has improved its chemical purity to the parts-per-billion range.
Beyond the chemical purity, the attributes that meaningfully differentiate hydroxides used as rubber additives are particle size and reactivity.
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