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CH3041
CLASSICAL METHODS
Volumetric
Analysis or Titrimetric Analysis
• This methodology is still used in most analytical
laboratories testing water & soils.
• It is labour intensive and quite cheap.
• The only change over CH1011 titrations
is
that magnetic stirring is used invariably.
that magnetic stirring is used invariably.
• Reliability relies on (i) the accuracy
of the conc. in the burette & (ii) the talented
user.
• Primary standard:
a reagent (> 99.9% pure) is weighed and used to prepare the 1o standard solution of known
concentration.
eg. potassium hydrogen phthalate.
