Research study on BIS (chloromethyl) ether formation and detection in selected work environments
U.S. Department of Health, Education, and Welfare, Public Health Service, Center for Disease Control, National Institute for Occupational Safety and Health, Division of Surveillance, Hazard Evaluations, and Field Studies, 1979 - Chlorides - 151 pages
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acid added addition ambient amounts aqueous Arrhenius plot batch bath BCME F0RMATI0N BCME formation calculated Calibration carbon tetrachloride Chemical CL CL CL cloth CM CM CM column concentrations condition conducted containing cooled derivative derivatization detection determined energy environment excess experimental experiments facility fertilizer FIGURE finishing formaldehyde formation of BCME gas chromatograph gas phase graphs HCH0 HCHO hydrogen chloride included indicate industrial processes KINETIC MEASUREMENTS laboratory levels materials mechanisms method methylene chloride minute mixing mixture mold mole nonpolar condensed phase occurred Once operations packing Path Peak percent phase reaction placed plant plot polar condensed phase polymerization possible potential poured present Production rate constant relatively resin respect sampling selected shown in Figure solution solvent specific step survey TABLE temperature textile tion trapping tube yield
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Page ii - The contents of this report are reproduced herein as received from the contractor. The opinions, findings, and conclusions expressed herein are not necessarily those of the National Institute for Occupational Safety and Health, nor does mention of company names or products constitute endorsement by the National Institute for Occupational Safety and Health.
Page 59 - METHOD) 43502-OI -69T 1. Principle of the Method 1.1 Formaldehyde reacts with chromotropic acid-sulfuric acid solution to form a purple monocationic chromogen. The absorbance of the colored solution is read in a spectrophotometer at 580 nm and is proportional to the quantity of formaldehyde in the solution (2,6). 1.2 Feigl (3), though stating "The chemistry of this color reaction is not known with certainty...