Sentence examples for formula chemical from inspiring English sources
All compounds are given with the drawing of the chemical structure, the molecular formula, chemical names, the Chemical Abstracts Registration numbers (CAS-RN) and references to all the "Landolt-Bornstein" citations, including their use in binary mixtures.
The directory can be searched by registry number, molecular formula, chemical name or synonyms in different languages as well as by physical and chemical characteristics and combinations of those data, and also may also be searched by substructure.
All new compounds are given with the drawing of the chemical structure, the molecular formula, chemical names, the Chemical Abstracts registration numbers (CAS-RN) and references to Landolt-Bornstein citations.
The CRF that identifies FORMULA chemical names tags a large number of false positives, leading to a very low recall.
We see that the identification of FORMULA chemical names using a single CRF decreases the recall by ~15% when compared to FORMULA identification using regular expressions.
This is seen by comparing the results from Run 3 and Run 4. These two runs differ only in how the system identifies the FORMULA chemical names.
Since a mineral has a definite composition, it can be expressed by a specific chemical formula.
Chemical formulas, chemical abstract service (CAS) numbers and concentrations are described in Additional file 2. Non-water soluble chemicals were solubilized in acetone.
The CDK interfaces can handle several concepts related to chemical formulas: the formula itself, sets of formulas, chemical formula ranges, adducts, isotope containers and patterns, and rules to filter formula sets.
XPS is a surface-sensitive quantitative spectroscopic technique that measures the elemental compositions at parts-per-thousand range, empirical formula, chemical and electronic state of the elements that exist within a composite.
Additionally, aragonite (chemical formula: CaCO3) and hisingerite (chemical formula: Fe 2 (III) Si2O5(OH)4·2H2O) seem to be present.
