Development of Methods for the Determination of Phosphoric Acid PCl3, PCl5, P4, S10, In Air.
Goodwin BE; Harris JL; Oberholtzer JE
Arthur D. Little, Inc. 1977 May:127 pages
Methods were developed for collecting and analyzing samples of phosphorus-trichloride (7719122) (PCl3), phosphorus-pentachloride (10026138) (PCl5), phosphorus-pentasulfide (1314803) (P4S10), and phosphoric-acid (7664382) (H3P04) from workplace atmospheres at concentrations close to applicable OSHA standards. The feasibility of reacting the analytes with organic reagents to produce stable derivatives which could be analyzed by gas chromatography was assessed. Techniques for generating atmospheres of air or nitrogen containing PCl3, PCl5, and P4S10 at concentrations close to OSHA standards were developed and tested. Classical wet chemical methods based on the phosphomolybdate colorimetric method for orthophosphate were developed and tested for each of the phosphorus analytes. Because the phosphorus halides were very reactive with atmospheric moisture and components of sampling devices, tentative methods were developed based on collection in water followed by colorimetric analysis. Tentative gas chromatographic methods for H3P04 and P4S10 based on reaction with a silylating agent and ethanol, respectively, were also developed.
We take your privacy seriously. You can review and change the way we collect information below.
These cookies allow us to count visits and traffic sources so we can measure and improve the performance of our site. They help us to know which pages are the most and least popular and see how visitors move around the site. All information these cookies collect is aggregated and therefore anonymous. If you do not allow these cookies we will not know when you have visited our site, and will not be able to monitor its performance.
Cookies used to make website functionality more relevant to you. These cookies perform functions like remembering presentation options or choices and, in some cases, delivery of web content that based on self-identified area of interests.
Cookies used to track the effectiveness of CDC public health campaigns through clickthrough data.
Cookies used to enable you to share pages and content that you find interesting on CDC.gov through third party social networking and other websites. These cookies may also be used for advertising purposes by these third parties.