Isobutane (C4H10) – highly explosive gas with hidden risk
Gas detectors for maximum safety
Isobutane (C₄H₁₀) is a versatile gas from the alkane group – known as refrigerant R-600a, propellant in aerosols or as an energy source in liquefied petroleum gas (LPG) applications. But as useful as isobutane is, it can also be dangerous: it is a highly flammable and explosive gas – with serious potential hazards for people, the environment and systems.
Explosion hazard from isobutane – not visible, but real
Isobutane is colorless and odorless (without odor) – and is therefore often not noticed until it is too late. Even the smallest leaks can lead to a dangerous gas concentration near the floor in inadequately ventilated rooms.
Safety-relevant properties of isobutane:
- Explosion limit range: approx. 1.8 – 8.4 % vol.
- Flash point: approx. -83°C
- Ignition temperature: approx. 460°C
- Gas density: heavier than air – collects at the bottom
Ignition sources such as sparks, hot surfaces or electrostatic discharge are often enough to trigger an explosion – with potentially catastrophic consequences.
Why gas detectors are vital for isobutane
Because isobutane is odorless without additives, a leak often remains undetected. The risk only becomes visible when the gas has already reached dangerous concentrations – too late for preventive measures. Gas warning systems are therefore indispensable.
Your benefits with our isobutane gas detectors:
- Early detection of isobutane well below the lower explosion limit (LEL)
- Real-time monitoring with stationary or mobile devices
- Approved for ATEX zones and potentially explosive atmospheres
- Multi-sensor technology possible – for combined monitoring of other hazardous substances
- Alarm via light, sound, signal forwarding (e.g. to BMS, PLC or shutdown systems)
- Coupling to ventilation systems or automatic shutdowns
Typical applications for isobutane detection:
- Refrigeration and air conditioning technology (R-600a / isobutane as refrigerant)
- Aerosol filling and spray can production
- Storage & transportation of liquefied petroleum gas (LPG)
- Research laboratories & development facilities
- Industrial plants with flammable process gases
Wherever isobutane is used, transported or stored, professional gas detection systems are a critical component of explosion protection and occupational safety.
Conclusion: Monitor isobutane safely – with intelligent gas warning technology
Isobutane is an invisible but highly dangerous substance. Our high-precision gas sensors detect leaks even at the lowest concentrations – long before a critical or explosive atmosphere is created.
Protect your employees, systems and the environment with reliable technology from Bieler+Lang – individually adapted to your application, environment and safety requirements.