On: The ancient Roman secret to concrete resilience in seawater (2017)

[shrubble]

Mixing ammonia and bleach gets you basically mustard gas, so be cautious about what is in any other detergent you use at the same time...

[mcpackieh → shrubble]

Specifically it makes chloramine gas, the same stuff that (in fairly low concentrations) makes swimming pools stink. It can be lethal so definitely take it seriously, although it's not nearly so gnarly as real mustard gas.

Here's an incident where a woman inadvertently made chloramine gas in an enclosed space while cleaning and was breathing it for 30 minutes. It nearly killed her and she was hospitalized for a week: https://www.nejm.org/doi/full/10.1056/NEJM199909093411115

[leetrout → mcpackieh]

Here's one where a restaurant manager died after someone mixed cleaners right on the floor.

https://www.cnn.com/2019/11/08/us/massachusetts-buffalo-wild...

[pfdietz → shrubble]

It's not mustard gas, but it is really nasty. It produces a mixture of chloramines and hydrazine.

[shrubble → pfdietz]

Thanks for the clarification.