ASTM UOP209 - 00 - Alkalinity, Sulfide and Mercaptide Analyses of Used Refinery Caustic Solutions

ASTM UOP209 - 00

Alkalinity, Sulfide and Mercaptide Analyses of Used Refinery Caustic Solutions

Status : Current   Published : July 2002

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This method is for the analysis of used refinery caustic solutions. Part A is for determining the strong base, weak base (spent caustic) and total alkalinity. Part B is for determining the concentration of sulfur present as sodium sulfide and sodium mercaptide. The data generated using this method are considered quantitative over the concentration ranges generally encountered in these types of refinery caustic solutions. Refinery caustic samples are inherently unstable, and must be analyzed as soon as possible after they are drawn.

Part A, a potentiometric titration, is an accurate procedure for use in distinguishing between strong bases, i.e., sodium phenolate and sodium hydroxide. The APPENDIX contains a procedure, Caustic Solution Analysis - Double Indicator, which can be used as a convenient, although not rigorous, test for the plant control of refinery caustic solutions used to remove hydrogen sulfide, mercaptans and certain other weak acids from petroleum products.




Standard NumberASTM UOP209 - 00
TitleAlkalinity, Sulfide and Mercaptide Analyses of Used Refinery Caustic Solutions
StatusCurrent
Publication Date25 July 2002
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
ICS71.060.30
PublisherASTM
FormatA4
DeliveryYes
Pages16
File Size221 KB
Price£45.00


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