#safety101 — Public Fediverse posts

#safety101 #chemistry101 #RTM
Two dead & 19 injured after a volatile reaction at a silver recovery plant in WV 22Apr2026.

Nitric acid mixed with "M2000A" evolved toxic hydrogen sulfide gas.

FWIW: the possible double displacement reaction:

2 Na₂S + 4 HNO₃ → 2 H₂S + 4 NaNO₃

#Hydrogen101 #Safety101 #H2Safety

RE: Clyde Hydrogen demo of integrated decoupled electrolyzer prototype.

⬇️Claim "Safety-no possibility of #hydrogen and #oxygen mixing"

UNTRUE: flow sheet shows O2 could travel with liquid mediator to catalytic hydrogen generator.
H2 + O2 = BAD!

#Hydrogen101 #Safety101 #H2Safety

RE: Clyde Hydrogen demo of integrated decoupled electrolyzer prototype.

⬇️Claim "Safety-no possibility of #hydrogen and #oxygen mixing"

UNTRUE: flow sheet shows O2 could travel with liquid mediator to catalytic hydrogen generator.
H2 + O2 = BAD!

#Ammonia101 #Safety101
Oh sure, we need to convert as much green hydrogen to green ammonia as possible...says nobody aware of the severe health hazards of ammonia!

Hundreds got evacuated in Weatherford, Oklahoma; 34 hospitalized, several in critical condition, but nobody died!
#NH3 #ammonia #OK
https://www.tiktok.com/@abcnews/video/7572339084719443231

#Safety101
HD Hyundai HHI now has ammonia-fueled 2.2MWe & 5.4MWe dual-fuel DI ICE engines.↙️

Hyundai claims a Selective Catalytic Reduction #SCR system will eliminate toxic ammonia & nitrogen oxide emissions.↘️

NOTE: SCR systems are ineffective on cold starts!
-They need high temperatures (around 200C - 250C) to work, leading to high temporary ammonia & NOx emissions.
-The Immediately Dangerous to Life or Health #IDLH concentration for ammonia is 300 parts per million (ppm)! #woops

#Safety101
HD Hyundai HHI now has ammonia-fueled 2.2MWe & 5.4MWe dual-fuel DI ICE engines.↙️

Hyundai claims a Selective Catalytic Reduction #SCR system will eliminate toxic ammonia & nitrogen oxide emissions.↘️

NOTE: SCR systems are ineffective on cold starts!
-They need high temperatures (around 200C - 250C) to work, leading to high temporary ammonia & NOx emissions.
-The Immediately Dangerous to Life or Health #IDLH concentration for ammonia is 300 parts per million (ppm)! #woops

#Safety101
HD Hyundai HHI now has ammonia-fueled 2.2MWe & 5.4MWe dual-fuel DI ICE engines.↙️

Hyundai claims a Selective Catalytic Reduction #SCR system will eliminate toxic ammonia & nitrogen oxide emissions.↘️

NOTE: SCR systems are ineffective on cold starts!
-They need high temperatures (around 200C - 250C) to work, leading to high temporary ammonia & NOx emissions.
-The Immediately Dangerous to Life or Health #IDLH concentration for ammonia is 300 parts per million (ppm)! #woops

#Safety101
HD Hyundai HHI now has ammonia-fueled 2.2MWe & 5.4MWe dual-fuel DI ICE engines.↙️

Hyundai claims a Selective Catalytic Reduction #SCR system will eliminate toxic ammonia & nitrogen oxide emissions.↘️

NOTE: SCR systems are ineffective on cold starts!
-They need high temperatures (around 200C - 250C) to work, leading to high temporary ammonia & NOx emissions.
-The Immediately Dangerous to Life or Health #IDLH concentration for ammonia is 300 parts per million (ppm)! #woops

#Safety101
HD Hyundai HHI now has ammonia-fueled 2.2MWe & 5.4MWe dual-fuel DI ICE engines.↙️

Hyundai claims a Selective Catalytic Reduction #SCR system will eliminate toxic ammonia & nitrogen oxide emissions.↘️

NOTE: SCR systems are ineffective on cold starts!
-They need high temperatures (around 200C - 250C) to work, leading to high temporary ammonia & NOx emissions.
-The Immediately Dangerous to Life or Health #IDLH concentration for ammonia is 300 parts per million (ppm)! #woops

#Safety101 #HydrogenSafety #Hydrogen101
Korea Minister of Employment and Labor Kim Young-hoon issued an emergency directive on the 17th (the same day as the most-recent accident) regarding the #H2 explosion.
It is actually the 2nd #hydrogen pipeline accident this year!
Korea needs to establish a culture of hydrogen safety ASAP!

#Safety101 #HydrogenSafety #Hydrogen101
🔥 Fire at hydrogen production unit in SK Energy Ulsan, Korea refinery injures 5. ↙️
↘️ Likely root cause: failure to follow standard operating procedure #SOP & purge residual hydrogen gas from pipeline before opening the line. Released gas cloud exploded.
#hydrogen #H2