Density of Mercury (Hg) in lb/in³

Density Conversion Formula:

\[ \rho = \rho_{kg/m³} \times 3.6127 \times 10^{-5} \]

Density in lb/in³:

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1. What is Mercury Density Conversion?

Definition: This calculator converts the density of mercury from kilograms per cubic meter (kg/m³) to pounds per cubic inch (lb/in³).

Purpose: It helps scientists, engineers, and students work with mercury density in different unit systems.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ \rho = \rho_{kg/m³} \times 3.6127 \times 10^{-5} \]

Where:

\( \rho \) — Density in pounds per cubic inch (lb/in³)
\( \rho_{kg/m³} \) — Density in kilograms per cubic meter (kg/m³)

Explanation: The conversion factor 3.6127 × 10⁻⁵ comes from multiplying the kg-to-lb conversion (2.20462 lb/kg) by the m³-to-in³ conversion (1.6387064 × 10⁻⁵ m³/in³).

3. Importance of Mercury Density

Details: Mercury's high density (about 13,595.1 kg/m³ at 20°C) makes it useful in barometers, thermometers, and other scientific instruments.

4. Using the Calculator

Tips: Enter the density in kg/m³ (default is 13,595.1 kg/m³ for mercury at 20°C). The value must be > 0.

5. Frequently Asked Questions (FAQ)

Q1: What's the standard density of mercury?
A: At 20°C (68°F), mercury has a density of 13,595.1 kg/m³ or 0.491154 lb/in³.

Q2: Why convert to lb/in³?
A: Some engineering applications in the US customary system require density in lb/in³.

Q3: Does temperature affect mercury density?
A: Yes, mercury density decreases with increasing temperature (about 0.1% per °C).

Q4: Can I use this for other liquids?
A: Yes, but the default value is specific to mercury. Enter the correct kg/m³ density for other substances.

Q5: How precise is this conversion?
A: The conversion factor is accurate to 6 significant figures, sufficient for most applications.