I recently saw this fire diamond configuration of:

2 - Flammability;
2 - Health;
1 - Reactivity;
OX - Extra Information

I have been attempting to find a database of terms, but after turning up with nothing, and seeing a similar answer about fire diamonds answered here, I posted this question.

I would be thankful if someone happened to know what compound that this fire diamond is labeled to.

  • 1
    $\begingroup$ Unless it's something incredibly common, I feel like there are too many possibilities. There are only so many possible combinations for the safety diamond, and well over an Avogadro's number of possible compounds that could exist. $\endgroup$ Nov 6, 2017 at 4:48

1 Answer 1


From what I found NIOSH lists 6 compounds with 2-2-1 pattern, but none of them are labeled with oxidizing properties:

On the other hand, there are oxidizers with slightly different NFPA diamond which much as well be the candidates:

The values might deviate a little in different sources and they also depend on conditioning.


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