Primary Contact List

Enter the appropriate 4-digit primary Standard Industrial Classification (SIC) code for yourfacility (Table I, pages 34-39, lists the SIC codes within the 20-39 range). If the report covers more than one establishment, enter the primary 4-digit SIC code for each establishment. You are required to enter SIC codes only for those establishments within the facility that fall within SIC codes 20 to 39. If you do not know your SIC code, check with your financial office or contact your local Chamber of Commerce or State Department of Labor. 

What if you are not researching a current topic or one that is readily accessible to you In other words, you may not know of any individuals whom you can contact directly. Don t worry. Let s go back to the topic of President John E Kennedy. Most likely, you do not have contact with the Kennedy family, and even if you did, members of the family might not want to speak about such a sensitive or delicate subject. Are there other people or other primary sources you could turn to for rmique information There are always other places to check for gathering primary source information. Below is a list of places to search for additional contacts that are open and available to the general public ... 

In order to produce additional evidence for the above mecheuiism for aromatization over Ga203 HZSM-5 catalysts the reactions of n-hexene, 1,5 hexadiene, methylcyclopentane, methylcyclopentene, cyclohexene, cyclohexadiene at 773 K over H-2SM-5 and Ga-HZSM-5 were comparatively studied. In these exj riments low pressure and low contact were employed to observe the primary kinetic products uncomplicated by secondary reactions. The relative rates of the formation of benzene from the various hydrocarbons cited above are listed in Table 4. 

Atoms not directly bonded to one another are always much further apart than this. Inherently atoms tend to repel one another see section 4). Only when they are united by strong, primary forces can their repulsion be overcome so as to allow their nuclei to approach to A. When it is merely secondary forces that cause attraction between atoms of neighbouring molecules, much larger separations are found. Because of its connexion with the other b) term in van der Waals equation, his name is also attached to the minimum contact distances between non-bonded atoms. Such distances can be approximately assessed as the sum of radii characteristic of each kind of atom. Table 2 lists a few of these van der Waals radii. 

Overall, given the relatively simple structures of many insect cuticular hydrocarbons and the ease with which they can be synthesized, it is remarkable that most studies of cuticular hydrocarbons have not been carried out in greater depth. Many papers have simply listed compounds present in cuticular extracts, rather than conducting more comprehensive studies in which the hydrocarbons have been synthesized, followed by methodical reconstruction of biologically active contact pheromone blends. Thus, one of the primary goals of this chapter is to review some of the straightforward methods by which cuticular hydrocarbons can be made and purified. In addition, examples of more advanced methods of stereoselective synthesis of compounds with multiple methyl branches will be described. 

There are seven primary materials from which O-rings are made. Table 1.9 catalogs these different materials, listing suitable and unsuitable chemical contacts and properties for each. Also included is a single O-ring price comparison (these 1991 prices are not meant to be absolute and are only offered to provide comparison). 

Harmonisation of national legislation on the substances used in food contact plastics was started with monomers as these are reactive substances and thus of primary importance as regards any potential health risk. Monomers and other starting substances are fully harmonised at Community level. This means that only the monomers listed in the specific Community legislation can be used in food contact plastics. An exemption exists for plastic coatings, adhesives and epoxy resins. Monomers which are used only in their manufacture are not listed in the Community lists. 

Within the FDA s Center for Food Safety and Applied Nutrition, the Office of Food Additive Safety administers premarket approval processes for new direct food additives and food additives that are components of food contact materials. Most food contact materials are regulated via the food contact notification process and authorization of new food contact materials is administered by the Division of Food Contact Notifications (see Chapter 2 for further information). The notifier has the primary responsibility to demonstrate the safety of the proposed use of the food contact material. Review scientists within FDA perform a fair evaluation of the data in a food contact notification, as well as other relevant information, to determine if the knowledge base supports the finding with reasonable certainty that no harm will result from the intended use of the food additive. FDA maintains a number of public online listings that include useful information... 

Sheldon Friedlander s doctoral students were invited to contribute to this obituary and be co-authors, and those who were successfully contacted and who accepted this invitation are included in the author list. Many other individuals consider Sheldon as one of their primary mentors, although their names are not included as co-authors to keep the list manageable. 

In a very early study Patat (1945) investigated the hydrolysis of aniline to phenol in a water-based acidic solution in near-critical and supercritical water (Tc = 374.2°C, Pc = 220.5 bar). Phosphoric acid and its salts are used as the catalyst for this reaction. The reaction proceeds extremely slowly under normal conditions and reaches equilibrium at low conversion levels. For these reasons, Patat chooses to study the reaction in supercritical water to temperatures of 450°C and to pressures of 700 bar in a flow reactor. He finds that the reaction follows known, regular kinetics in the entire temperature and pressure space studied and the activation energy of the hydrolysis (approximately 40 kcal/mol) is the same in the supercritical as well as in the subcritical water. He suggests that the reaction is catalyzed by hydrogen ions formed from dissolution of phosphoric acid in supercritical steam. Very small amounts of phosphoric acid and the salts of the phosphoric acid are dissolved in the supercritical steam and are split into ions. Patat lists several dissolution constants for primary ammonium phosphates in supercritical steam. In this instance, the reaction performance is improved when the reaction is operated homogeneously in the mixture critical region and, thus, in intimate contact between the reactants and the catalyst. 

In this section we discuss methods in which (Ihoions provide both the primary beam and the detected beam. The techniques discussed arc listed in lable 21-1 namely, surface plasmon resonance,sum frequency generation, and e.lUpsometry. The electron and ion spectroscopic surface techniques described previously all suffer from one disadvantage they require an ultra-high vacuum environment and provide no access to buried interfaces. The photon spectroscopic melhods described here can all deal with surfaces in contact with liquids and, in some cases, surfaces that are buried under transparent layers. 

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