Hydrogen arsenide (AsH₃) – Highly toxic, invisible, flammable

Why reliable gas detectors are vital

Hydrogen arsenide (chemical name: AsH₃, also known as arsine hydride) is one of the most dangerous industrial and process gases of all. It is colorless, odorless, extremely toxic – and life-threatening even in the smallest concentrations. AsH₃ is also highly flammable and quickly forms explosive gas mixtures on contact with air.

Deadly even in traces: the invisible danger of AsH₃

The toxic effect of hydrogen arsenide is dramatic: concentrations as low as 0.05 ppm (parts per million) in the air we breathe lead to severe poisoning, neurological symptoms and, in the worst case, respiratory paralysis. As a strong blood and nerve poison, AsH₃ is highly dangerous even in minimal doses – and goes unnoticed by humans as it has no smell or taste.

Health hazards from exposure to AsH₃:

Headache, nausea, dizziness
Hemolysis (destruction of red blood cells)
Circulatory failure, respiratory arrest
Acute danger to life even with small leaks

Explosion risk from hydrogen arsenide: highly explosive in contact with air

In addition to its extreme toxicity, AsH₃ is highly explosive. It can ignite spontaneously on contact with air at temperatures as low as 38 °C. The explosion range is between 5.1 and 78% by volume, making it one of the most dangerous gases in technical applications. Even small leaks in poorly ventilated systems can have devastating consequences.

Gas detectors for hydrogen arsenide – your protection technology against the invisible danger

A reliable gas detection system for hydrogen arsenide is indispensable in areas such as semiconductor manufacturing, metal processing, pharmaceutical production or chemical synthesis. Our highly sensitive detectors have been specially calibrated to the properties of AsH₃ and guarantee maximum safety in sensitive working environments.

Advantages of our AsH₃ gas detection systems:

Early detection of toxic & explosive concentrations
Audible and visual alarms for rapid evacuation
Seamless system integration into your security architecture
24/7 monitoring, even in areas that are difficult to access or critical
Certified sensor technology, for mobile or stationary use

Typical applications for arsenic hydrogen detection:

Semiconductor industry (e. g.B. Doping with AsH ₃)
Special metal production & electroplating
Organic-chemical synthesis processes
Research facilities & laboratories
Clean rooms & high security areas

Conclusion: Only those who measure can protect – reliably detect and control AsH₃

Hydrogen arsenide is a gas with the highest hazard potential – invisible, lethal and explosive. Reliable gas detection for AsH₃ is therefore not a “can do”, but a must for safe plant operation. Our certified gas detectors offer state-of-the-art sensor technology, fast response times and maximum precision – for a safe workplace in industry, research and production.