Here are the main advantages of gravimetric analysis, explained:
- High accuracy and precision
- Since the measurement is based on mass — a quantity that can be measured very accurately — gravimetric analysis gives highly reliable results.
- No need for expensive instruments
- It mainly requires basic laboratory equipment like a balance, filter paper, and a drying oven — making it inexpensive compared to modern instrumental methods.
- Direct measurement
- The result is based on the actual weight of a pure compound, so it does not depend on calibration or reference standards.
- Applicable to many substances
- It can be used to determine metals, anions, and some organic compounds that can form stable, insoluble precipitates.
- Permanent record of results
- The solid product obtained (the precipitate) can be stored and rechecked later if needed.
- Free from instrumental errors
- Unlike electronic instruments, gravimetric analysis is not affected by electrical faults, signal drift, or calibration issues.
- Useful for purity checks
- It helps verify the composition and purity of chemicals, ores, and alloys with great accuracy.
- Fundamental method
- It provides a basis for calibrating and validating other analytical techniques because of its high accuracy.
In short, gravimetric analysis is valued for its simplicity, accuracy, and reliability, especially when precise quantitative results are needed without relying on advanced instruments.