Dictionaries chemical

Bennett, H., ed., Concise Chemical and Technical Dictionary, Chemical Publishing Co., New York, 1947. 

CHEMSEARCH is a dictionary listing of the most recently cited substances in CA Search (File 4) and is a companion file to CHEMNAME (File 31). For each substance listed, the following information is provided CAS Registry Number, molecular formula, and CA Substance Index Names. CHEMSEARCH includes all new chemical substances cited in the latest six issues of Chemical Abstracts. Also included are additional chemical substance search terms generated specifically for all DIALOG chemical name dictionaries. Chemical substances already in CHEMNAME are not included. Only the... 

In this Dictionary 1 have aimed to provide an explanation of the terms used in the various branches of chemistry, together with brief accounts of important substances and chemical operations. The Dictionary is intended for use in schools, colleges and universities from the first study of chemistry up to about second year at university or college. We have necessarily had to be selective rather than comprehensive but most chemicals met with at this level should be included. 

Thus, the conversion of chemical names into structures consists of parsing the name into longest text fragments. These fragments are submitted to lexical analysis and the derived lexical units are compared with a collection of predefined units in a dictionary. 

OtherD t b ses. Available from different vendors (Table 8). For example, the researcher can obtain physical properties by usiag the Merck Index Online or the Dictionary of Organic Compounds available by Chapman and Hall Chemical Database. In DIALOG, numeric databases are collected under the name of CHEMPROP. 

R. J. Lewis, Hawley s Condensed Chemical Dictionary, 12th ed.. Van Nostrand Reinhold Co., New York, 1994. 

PerchloromethylMercaptan, Stauffer Chemical Co., Agricultural Chemical Division, Chemical Intermediates Data Sheet, Westport, Coim., Nov. 1978. R. J. Lewis, Sr., Manley s, Condensed Chemical Dictionary, 12th ed.. Van Nostrand-Reinhold Pubhshers, New York, 1993, p. 1171. 

Online chemical dictionary with over 500,000 records on chemical substances found in the TOXLINH, TOXBACK65, TOXBACK74. RTECS, MEDLINE, and T1>B databa.scs, as well as the EPA TSCA Inventory. Search capability by synonynis, CAS Registry Numbers, and by classes of compounds. Prime lime connect cost is S54 per hour. 

There are a large number of naturally occurring molecules which have not yet been obtained by chemical synthesis. A convenient source of information on such compounds is The Dictionary of Organic Compounds, Fifth Addition (1982) and Supplements 1-5, published as a multivolume series by Chapman and Hall, New York and London J. Buckingham, Executive Editor. This compendium contains references to syntheses which are not included in this collection, especially those involving simpler target structures. 

What do we mean when we speak of an inherently safer chemical process Inherent has been defined as existing in something as a permanent and inseparable element, quality, or attribute (American College Dictionary, 1967). A chemical manufacturing process is inherently safer if it reduces or eliminates the hazards associated with materials and operations used in the process, and this reduction or elimination is permanent and inseparable. To appreciate this definition fully, it is essential to understand the precise meaning of the word hazard. A hazard is defined as a physical or chemical characteristic that has the potential for causing harm to people, the environment, or property (adapted from CCPS, 1992). The key to this definition is that the hazard is intrinsic to the material, or to its conditions of storage or use. Some specific examples of hazards include ... 

Chemical Encyclopedian Dictionary, (I. L. Knunyants, ed.) Sovetskaya Encyclopedia, Moscow, p. 791 (1983). 

The resolution of a chemical compound into its proximate or ultimate parts the determination of its elements or of the foreign substances it may contain thus reads a dictionary definition. 

Webster s Third International Dictionary refers to a pesticide as an agent (as a chemical) used to destroy a pest Economic poison. The Federal Register for March 27, 1964, further defines... 

HawleyGG. 1987. The condensed chemical dictionary, llthed. New York, NY Van Nostrand Reinhold Company, 111. 

CHEMLINE. 1989. Chemical Dictionary On-Line. National Library of Medicine, Bethesda, MD. 

Of these sources, Kirk-Othmer s Encyclopedia of Chemical Technology is particularly recommended for questions on chemistry and on end uses. For information on properties and on toxicity and handling hazards, Patty s Industrial Hygiene, Material Safety Data Sheets (MSDS), and the Aldrich catalog are very nseful. Questions on industrial chemistry should be directed to Ullman s Encyclopedia of Industrial Chemistry, and the texts by Chenier, Heaton, and White. Hawley s Condensed Chemical Dictionary is valuable as a source for dehnitions of the terms (language) of chemistry. 

Lewis, R.J. (Ed.), Hawley s Condensed Chemical Dictionary, 13th ed., John Wiley Sons, 1997. (E,F,H,J)... 

Fostel J, Choi D, Zwickl C, Morrison N, Rashid A, Hasan A, et al. Chemical Effects in Biological Systems—Data Dictionary (CEBS-DD) a compendium of terms for the capture and integration of biological study design description, conventional phenotypes and omics data. Toxicol Sci 2005 88 585-601. 

Hawley GG. 1981. The Condensed Chemical Dictionary. 10th ed. New York Van Nostrand Reinhold Co., 1041-1042. 

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