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speciality chemicals (or specialty chemicals): are constituted by a mixture of different chemical substances, that is designed and produced in order to be applied to a specific application; the formulation of specialities is the result of scientific researches carried out by the producer company, so each formulation and associated properties ...
Many of these companies are SME's with their own niche products and sometimes technology focus. The common stock of over 400 speciality chemical companies from around the world are identified by Bloomberg, [7] providers of global business and financial information. There are many more privately owned speciality chemical companies that are not ...
Chemexper Chemical Directory catalogue chemicals CASno Structure SMILES "ChemExper". Chemxpert Database Chemxpert Chemical Database small molecules database buyers,suppliers "ChemxpertDB". 10,00000 Chemical Book East West University: commercially available compounds CASno, suppliers, properties "Chemical Book". 200,000 Chemical Register
The American Chemistry Council estimated that global chemical sales in 2014 rose by 3.7% to US$5,389,000,000,000. [3] In 2018, Forty-eight of the companies on the list disclosed chemical profits, which totaled US$110,100,000,000, an increase of 1.3% from 2017. The average profit margin for chemical operations for these companies was 9.6%. [1]
Chemical symbols are the abbreviations used in chemistry, mainly for chemical elements; but also for functional groups, chemical compounds, and other entities. Element symbols for chemical elements, also known as atomic symbols , normally consist of one or two letters from the Latin alphabet and are written with the first letter capitalised.
In terms of a graph-based computational procedure, SMILES is a string obtained by printing the symbol nodes encountered in a depth-first tree traversal of a chemical graph. The chemical graph is first trimmed to remove hydrogen atoms and cycles are broken to turn it into a spanning tree. Where cycles have been broken, numeric suffix labels are ...
Chemical formulae with deuterated solvents (for example, in NMR use) are customarily described with "D" as chemical symbol: CD 3 OD, methanol-d 4; CD 3 SOCD 3, DMSO-d 6 (regular notation would be C 2 H 3 O 2 H). These established systems are acceptable, provided they are consistent within an article.
Hazard symbols; List of mathematical constants (typically letters and compound symbols) Glossary of mathematical symbols; List of physical constants (typically letters and compound symbols) List of common physics notations (typically letters used as variable names in equations) Rod of Asclepius / Caduceus as a symbol of medicine