Definition
Gravimetric analysis (GA) is a part of quantitative analysis and is defines as the process of weighing an element or a definite compound of the element in as pure form as possible.
The determination of GA is depends on transformation of the element into a pure stable compound which can be readily converted into a form suitable for weighing. The weight of the element is calculated by knowledge of the formula of a compound and the relative atomic masses of the constituent elements.
Advantages:
· Precise and accurate
· Errors are readily checked
· Absolute method
· Inexpensive apparatus
Disadvantages:
· Time consuming
· Slow method
· Tedious
Application of Gravimetric Analysis
· Analyze standard that are used for testing or calibration of instruments.
· Analyze the compound with high accuracy
· Applicable only for those substances which form metallic compounds on ignition and which do not contain volatile matter.