1. What is Density Calculation Using Specific Gravity?

Density calculation using specific gravity is a method to determine the density of a substance by multiplying its specific gravity (relative to water) by the density of water. This provides the absolute density of the material.

2. How Does the Calculator Work?

The calculator uses the density formula:

Where:

• \( SG \) — Specific Gravity (dimensionless)
• \( Water\_density \) — Density of water (kg/m³)

Explanation: Specific gravity is the ratio of a substance's density to the density of water. Multiplying by water's density gives the absolute density of the substance.

3. Importance of Density Calculation

Details: Density is a fundamental physical property used in various fields including engineering, chemistry, and material science. It helps identify substances, determine purity, and calculate buoyancy forces.

4. Using the Calculator

Tips: Enter specific gravity (dimensionless) and water density (typically 1000 kg/m³ at 4°C). All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is specific gravity?
A: Specific gravity is the ratio of the density of a substance to the density of a reference substance (usually water at 4°C).

Q2: Why is water density typically 1000 kg/m³?
A: Water reaches its maximum density of 1000 kg/m³ at 4°C. This is the standard reference value for specific gravity calculations.

Q3: Can I use different units for density?
A: Yes, but ensure consistency. The calculator uses kg/m³, but you can convert results to other units like g/cm³ (1 g/cm³ = 1000 kg/m³).

Q4: What are typical specific gravity values?
A: Most materials have SG values between 0.5-20. Water has SG=1, metals typically have high SG (e.g., iron ~7.9), while woods have low SG (~0.3-0.9).

Q5: When should temperature corrections be applied?
A: For precise calculations, consider temperature effects on both the sample density and water density, as both change with temperature.