Handbooks Merck index

The US. Pharmacopeia (USP XXII) or National Formula (NFXVII) (20) also provide a similar description however, the peroxide value is not defined (Table 9). These specifications are also given in the Handbook of Pharmaceutical Excipients (HPE), pubhshed jointiy by the American Pharmaceutical Association and The Pharmaceutical Society of Great Britain (21), which defines lecithins both from plants and eggs. The Merck Index (22) specifies a slightiy lower acid value. The Japanese Monograph (ISCI-II) (23) specifies a slightiy lower acetone-insoluble matter and a lower heavy-metal content. 

R. C. Weast and M. J. Asde, eds.. Handbook of Chemisty andPhysics, 62nd ed.. Chemical Rubber Company, Boca Raton, Fla., 1981, p. D-101 S. Budavari and co-eds.. The Merck Index, 11th ed., Merck, Rahway, N.J., 1989, p. MISC-53. 

List possible structures or partial structures consistent with the mass spectral data. If probable molecular formulae are tabulated and the structure is still unknown, possible structures can easily be obtained from such sources as Beilstein, Merck Index, Handbook of Chemistry, Handbook of Chemistry... 

The Merck Index, Merck Co., Inc., Rahway, New Jersey.) This handbook is mostly concerned with drugs and their physiological effects. But useful information exists concerning many chemicals. Because of the nature of the listings, I ve had to treat the explanations a bit differently than those for the other handbooks. 

Using Resources Use resources such as the CRC Handbook of Chemistry and Physics, the Merck Index, or the Internet to determine the colors of silver metal and copper nitrate in water. Compare this information with your observations of the reactants and products in step 6. 

If unsure of what solvent to use, look in the Merck Index or in a chemistry handbook. This may save you the time and expense of testing for the best solvent. 

THE CR.C HANDBOOK OF CHEMISTRY AND PHYSICS THE C.R.C. HANDBOOK OF LABORATORY SAFETY LANGE S HANDBOOK OE CHEMISTR Y HOW TO FIND CHEMICAL INFORMATION by Maizel ENCYCLOPEDIA OE CHEMISTRY by Van Nostrad Reinhold THE MERCK INDEX... 

Specialized properties that are not covered in these standard databases can be found in specialized books. The properties of food can be found in Physical Properties of Foods (Peleg and Bagley 1983). The properties of many petroleum products can be found in Petroleum Products Handbook (Guthrie 1960). The Merck Index (1996) lists chemicals, drugs, and biologicals. 

Having outlined the product composition it is useful to calculate the approximate osmolality from published tables, for example in the CRC Handbook of Chemistry and Physics (CRC Press Inc.), The Merck Index (Merck Co. Inc.) and The British Pharmacopoeia (HMSO). Ingredients for which osmolality values are not available can be allowed for by using values for substances of similar molecular weight and ionic character. 

Values obtained from (a) the Merck Index and (b) the CRC Handbook of Chemistry and... 

The Merck Index lists the melting point of racemic mandelic acid as 119°C [1], while the Handbook of Chemistry and Physics gives the melting point range as 121-123°C [14], The United States Pharmacopeia specifies the wider range of 118-121°C for the melting point range [15]. 

It may be a number added retrospectively by CAS to compounds from various data collections. In the early years of the registry system, substances from a number of special data collections, such as the Colour Index, Merck Index, Lange s Handbook, and Pesticide Index, were added. Some of these substances may not have been reported subsequently. 

For rapid access to information such as mp, bp, density, solubility, optical rotation, A max, and crystal form, one turns first to the Handbook of Chemistry and Physics where information is found on some 15,000 organic compounds, including the Beilstein reference to each compound. These compounds are well known and completely characterized. The majority are commercially available. The Merck Index contains information on nearly 10,000 compounds, especially those of pharmaceutical interest. In addition to the usual physical properties, information and literature references to synthesis, isolation, and medicinal properties, such as toxicity data, are found. The last third of the book is devoted to such items as a long cross index of names (which is very useful for looking up drugs), a table of organic name reactions, an excellent section on first aid for poisons, a list of chemical poisons, and a listing of the locations of many poison control centers. 

Hypothesizing Do you think that, on average, strac-tural isomers or stereoisomers will have a larger difference in their physical properties Explain your reasoning. Research this question by comparing physical properties of pairs of isomers as given in the CRC Handbook of Chemistry and Physics or The Merck Index to see if your hypothesis is correct. 

The Merck Index 12 edition, Budavari, S., Ed., Merck Co., Inc. White House Station, NJ 1996. Perrin, D. D. Dempsey, B. Serjeant, E. P. pKa Prediction for Organic Acids and Bases Chapman and Hall New York 1981. Serjeant, E. P. Dempsey, B. Ionization Constants of Organic Acids in Aqueous Solution Pergamon New York 1979. CRC Handbook of Chemistry and Physics 76th ed. CRC Press New York 1995—1996. Lange s Handbook of Chemistry, Dean, J. A., Ed, 14th edition McGraw-Hill New York, 1992. 

It has come to my attention recently that many of our laboratory workers have not had much of an opportunity to explore the various information sources that are at our disposal. These include Material Safety Data Sheets (MSDS), the Merck Index on compact disc, and the Handbook of Chemistry and Physics, for example. In addition, some of our newer employees need to come up-to-speed on our system for ordering chemicals. 

The reference sources to be used are the Handbook of Chemistry and Physics (published by CRC Press LLC) the Merck Index CD-ROM (published by Chapman and Hall) the Material Safety Data Sheet (MSDS) found in the lab or on the Internet, such as through the Fisher Chemical Company Web site (www.fisherl.com), or others suggested by your supervisor the labels on the stock containers of the chemicals found in the laboratory and the Fisher Chemical Company chemicals catalog. Your supervisor will demonstrate the use of each of these. Your supervisor may or may not require you to use your laboratory notebook for this work. Accordingly, a data sheet is provided. 

Handbook of Chemistry and Physics, the Merck Index, MSDSs, and the Fisher chemical catalog exposes them to some elements of the chemist s workplace that they would not otherwise get. Actually seeing the chemicals that are in ordinary products that they use as consumers, and reading the label on the containers, communicates a sense of the relevancy about the role of chemistry in their lives. Finally, the use of the CD-ROM and the Internet (optional) gives them a first clue to modem technology as a part of the chemist s workplace... 

The Merck Index Budavari, 1999) and the CRC Handbook of Chemistry and Physics (Lide, 2000) are useful sources on the chemical and physical properties of elements and compounds, including melting and boiling points, solubility and toxicity, etc. Manufacturers catalogues now include hazard data and disposal procedures. 

What is the solubility of caffeine in water Merck Index or CRC Handbook)... 

Among these reference works with CAS Registry Numbers are the CRC Handbook if Chemistry and Physics, the Kirk-Othmer Encyclopedia of Chemical Technology, The Merck Index, the USP Dictionary if USAN and International Drug... 

Notes-. Physico-chemical properties of the two most common iodate salts. The Merck Index, (1996) CRC Handbook of Chemistry and Physics, (1993). Note the differing ratio of iodine in the salts. Both salts are highly soluble - a prerequisite for substances to be applied by spraying in aqueous solution to salt. 

Calculate, from data in handbooks, the TG curve for the thermal decomposition of 100 mg of urea (see Merck Index). Assume all processes are quantitative. 

Handbook of Chemistry Physics, CRC Press Hazardous Chemical Desk Reference, van Nostrand Reinhold Merck Index, Merck Company NIOSH/OSHA Pocket Guides to Chemical Hazards Chemical Engineers Handbook, McGraw-Hill. 

Many chemical databases are available, usually through your school The CRC Handbook of Chemistry and Physics is the standard reference for many types of data and is available in libraries. The Merck Index is a standard reference for the properties of many small organic compounds, especially ones of biological interest. WebEle-ments (http //www.webelements.com) is a good Web site for looking up the properties of the elements. 

Determining the applicable container for shipping a hazardons material depends on the UN identification code on the drum. For more information regarding containers, refer to 49 CFR 178. To find information on a chemical, refer to the Hazardons Materials Table, SDS, Merck Index, CRC Handbook of Chemistry and Physics, or contact the mannfacturer of the chemical (Table 7.13). 

The information for each chemical entry is given as it is relevant to polymeric materials. Individual chemical species (e.g., ethanol) were taken from the CRC Handbook of Chemistry and Physics (2004), the Merck Index and other reference materials. The reader may refer to these references for additional physical properties and written chemical formulae. Extensive use was made of ChemDraw , CambridgeSoft Corporation for naming and drawing chemical structures (conversion of structure to name and vice versa), which are included with each chemical entry where possible. Special attention was given to the lUPAC name that is often given with the common name for the convenience of the reader. 

Method 2 If the iso-osmotic concentration of a substance is known, the osmotic value can be easily calculated. In Martindale, these values are often specified in the description of substances [11]. In the Merck Index and in the Handbook of injectable drugs, the iso-osmotic concentrations for a large number of substances are listed in a table [6, 37]. 

For each of the following pairs of solutes and solvent, predict whether the solute would be soluble or insoluble. After making your predictions, you can check your answers by looking up the compounds in The Merck Index or the CRC Handbook of Chemistry and Physics. Generally, The Merck Index is the easier reference book to use. If the substance has a solubility greater than 40 mg/mL, you may conclude that it is soluble, a. Malic acid in water... 

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