Poisoning from

Rhenium catalysts are exceptionally resistant to poisoning from nitrogen, sulfur, and phosphorus, and are used for hydrogenation of fine chemicals. 

Chlorides may be found in natural gas, particularly associated with offshore reservoirs. Modified alumina catalysts have been developed to irreversibly absorb these poisons from the feed gas. 

Treatment. Treatment of poisoning from soluble barium salts may be preventive or curative (47,51). Preventive treatment involves inhibition of intestinal absorption by administering such soluble sulfates as magnesium or sodium, causing precipitation of barium sulfate in the alimentary tract. 

Safety No industrial poisoning from bismuth has been reported (10). However, precautions should be taken against the careless handling of bismuth and its compounds ingestion and inhalation of dusts and fumes should be avoided. 

The earliest practical use of an expert system was made in the software named MYCIN for diagnosing a toxic poison from the symptoms of a patient and recommending the antidote (62). This type of activity is generally carried out by a human expert who processes information about a situation (in this case, symptoms of a patient), refers to the expert s experience and expert knowledge, and then recommends action (in this case, the antidote). 

Poisoning from toxie eombustion produets. In ehemieal fires, partieularly those involving mixmres, an extremely eomplex luixture of gases and partieulates, e.g. smoke may be produeed. The eomposition depends upon the initial eompounds involved, the temperatures attained and the oxygen supply, and is henee often unpredietable. Some gaseous eompounds may derive from thermal breakdown, i.e. pyrolysis, of the ehemieals rather than oxidation as illustrated in Tables 3.9 and 3.10. 

The seeds of Physostigma venenosum, Balf., have long been used in West Africa as an ordeal poison. From them Jobst and Hesse, isolated... 

Keim-freiheit,/. freedom from germs, sterility, -gtft, n. poison from germs, bacterial toxin poison for germs. 

Figure 9. Relative rate of CO hydrogenation as a function of copper coverage on a Ru(OOOl) catalyst Reaction temperature 575K. Results for sulfur poisoning from Figure 7 have been replotted for comparison.

The product of the reaction in Entry 8 was used in the synthesis of the alkaloid pseudotropine. The proper stereochemical orientation of the hydroxy group is determined by the structure of the oxazoline ring formed in the cycloaddition. Entry 9 portrays the early stages of synthesis of the biologically important molecule biotin. The reaction in Entry 10 was used to establish the carbocyclic skeleton and stereochemistry of a group of toxic indolizidine alkaloids found in dart poisons from frogs. Entry 11 involves generation of a nitrile oxide. Three other stereoisomers are possible. The observed isomer corresponds to approach from the less hindered convex face of the molecule. 

The baking industry feels that it needs residual sprays of the character of chlordan and DDT. It has no fear of contamination of the finished product, for there is far less danger from contamination here than there has been in the past from such poisons as sodium fluoride powders, which were used for many years without adverse publicity, despite infrequent food poisonings from their use. 

LESSON 3. HUMANS INEVITABLY SUFFER ACUTE AND, MUCH MORE OFTEN, CHRONIC, POISONING FROM PESTICIDE USE. 

Hoidal CR, Hall AH, Robinson MD, et al. 1986. Hydrogen sulfide poisoning from toxic inhalations of roofing asphalt fumes. Ann Emerg Med 15 826-830. 

Fischbein A, Anderson KE, Sassa S. et al. 1981. Lead poisoning from do-it- yourself heat guns for removing lead-based paint Report of two cases. Environ Res 24 425-431. 

Fischbein A, Wallace J, Sassa S, et al. 1992. Lead poisoning from art restoration and pottery work unusual exposure source and household risk. J Environ Path Toxicol Oncol 11(1) 7-11. 

Elkins, H.B, and J.P.Fahy. 1967. Arsine poisoning from aluminum tank cleaning. Ind. Med. Surg. 36 747-749. 

Virginia 1986 lead poisoned from ingested skeet 21 FW 103... 

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