Rating
Any leaves a quadrant open.
Any value matches.
Any value matches.
Any value matches.
Standard NFPA 704 colors and layout. Required symbols are drawn in the white quadrant, W with its bar.
Reference only. Nothing here is a basis for a workplace safety decision. Verify every rating against the safety data sheet, NFPA 704 itself, and the authority having jurisdiction.
2228 chemicals match
Health any, Fire any, Instability any
- (+-)-alpha-PineneHealth 1, Fire 3, Instability 0 (HSDB). C10H16HSDBPubChem
- (1,1'-Biphenyl)-2-olHealth 3, Fire 1, Instability 0 (HSDB). C12H10OHSDBPubChem
- (2-Nitrophenyl)acetic acidHealth 2, Fire 0, Instability 0 (Wikipedia). 3740-52-1 · C8H7NO4WikipediaWikipediaPubChem
- (3-Aminopropyl)triethoxysilaneHealth 3, Fire 1, Instability 0 (Wikipedia). 919-30-2 · C9H23NO3SiWikipediaWikipediaPubChem
- (Dimethylamino)ethyl methacrylateHealth 2, Fire 2, Instability 0 (HSDB). C8H15NO2HSDBWikipediaPubChem
- (E)-StilbeneHealth 1, Fire 1, Instability 0 (Wikipedia). 103-30-0 · C14H12WikipediaWikipediaPubChem
- 1,1'-Oxydi-2-propanolHealth 1, Fire 1, Instability 0 (HSDB). C6H14O3HSDBWikipediaPubChem
- 1,1,1,2,3,3,3-HeptafluoropropaneHealth 1, Fire 0, Instability 1 (Wikipedia). 431-89-0 · C3HF7WikipediaWikipediaPubChem
- 1,1,1,2-TetrafluoroethaneHealth 1, Fire 0, Instability 1 (Wikipedia). 811-97-2 · C2H2F4WikipediaWikipediaPubChem
- 1,1,1-TrichloroethaneHealth 2, Fire 1, Instability 0 (HSDB). 71-55-6 · C2H3Cl3HSDBWikipediaPubChem
- 1,1,2-Trichloro-1,2,2-trifluoroethaneHealth 3, Fire 0, Instability 1 (Wikipedia). 76-13-1 · CClF2CCl2FWikipediaWikipediaPubChem
- 1,1,4,4-TetraphenylbutadieneHealth 2, Fire 0, Instability 0 (Wikipedia). 1450-63-1 · C28H22WikipediaWikipediaPubChem
- 1,1-DibromoethaneHealth 2, Fire 1, Instability 0 (Wikipedia). 557-91-5 · C2H4Br2WikipediaWikipediaPubChem
- 1,1-Dichloro-1-nitroethaneHealth 2, Fire 2, Instability 3 (HSDB). C2H3Cl2NO2HSDBPubChem
- 1,1-DichloroethaneHealth 1, Fire 3, Instability 0 (HSDB). C2H4Cl2HSDBPubChem
- 1,1-DichloroethyleneHealth 2, Fire 4, Instability 2, W (HSDB). 75-35-4 · C2H2Cl2WHSDBWikipediaPubChem
- 1,1-DifluoroethaneHealth 1, Fire 4, Instability 0 (Wikipedia). 75-37-6 · C2H4F2WikipediaWikipediaPubChem
- 1,2,3-TrichloropropaneHealth 2, Fire 2, Instability 1 (HSDB). 96-18-4 · C3H5Cl3HSDBWikipediaPubChem
- 1,2,3-TrimethylbenzeneHealth 1, Fire 2, Instability 0 (HSDB). C9H12HSDBPubChem
- 1,2,4,5-TetrachlorobenzeneHealth 1, Fire 1, Instability 0 (HSDB). C6H2Cl4HSDBPubChem
- 1,2,4-ButanetriolHealth 2, Fire 1, Instability 0 (Wikipedia). 3068-00-6 · C4H10O3WikipediaWikipediaPubChem
- 1,2,4-TrichlorobenzeneHealth 2, Fire 1, Instability 0 (HSDB). 120-82-1 · C6H3Cl3HSDBWikipediaPubChem
- 1,2,4-TrimethylbenzeneHealth 1, Fire 2, Instability 0 (HSDB). 95-63-6 · C9H12HSDBWikipediaPubChem
- 1,2-Bis(2-chloroethoxy)ethaneHealth 2, Fire 1, Instability 0 (HSDB). C6H12Cl2O2HSDBPubChem
Related tools
- Chemical LookupSearch more than 25,000 compounds by name, CAS number, formula, or molar mass and read the properties, NFPA diamond, and GHS classification.
- GHS Pictogram LookupPick GHS pictograms or hazard codes and see which chemicals carry them, with the official symbols.
- Chemical Equation BalancerBalance any chemical equation automatically and show the working.
- Periodic TableBrowse all 118 elements, color the table by a property trend, and read the detail for any element.
- pH and pOH CalculatorConvert between pH, pOH, H+ and OH- concentration, including weak acids.
- Electron Configuration ViewerAufbau order electron configuration and orbital diagram for any element.
What it does
Two searches over the same data. Set the health, fire, and instability quadrants and the three special symbols to see every chemical carrying that exact NFPA 704 diamond, or type a name, synonym, CAS number, or formula to have the quadrants filled in for you. The diamond itself is drawn as an SVG you can download, optionally captioned with the chemical name. Ratings come from PubChem's NFPA annotations and from English Wikipedia chembox parameters, and when the two disagree both are shown rather than one being picked silently.
How to use it
Pick a value from 0 to 4 for each quadrant, or leave it on Any to keep it open. Set W, OX, and SA to Require or Exclude to narrow the white quadrant. Results are sorted by name with a count, and when a combination has only a few matches the closest other ratings are listed too. To go the other way, type a chemical into the search box and pick a result to load its diamond.
Why this one
The NFPA 704 pages that rank well are either a single static image or a paid sign builder. This one is a real search over a few thousand rated chemicals, it draws a downloadable diamond, it tells you which source each rating came from, and it runs entirely in your browser, so your inputs never leave your device.
FAQ
- Can I use this to label a container at work?
- No. This is a reference, not a compliance tool. Nothing here is a basis for a workplace safety decision. Verify every rating against the safety data sheet, NFPA 704 itself, and the authority having jurisdiction before anything gets placarded.
- Why do some chemicals show two different diamonds?
- Because PubChem and Wikipedia disagree about them. Rather than pick a winner, both ratings are shown with their source. PubChem's annotations also frequently leave the white quadrant empty, so a search for W or OX matches against the union of the two sources.
- What do W, OX, and SA mean?
- W with a line through it means the chemical reacts dangerously with water, so water should not be used to fight the fire. OX means it is an oxidizer. SA means simple asphyxiant, and it is reserved for nitrogen, helium, neon, argon, krypton, xenon, and a handful of other gases that displace breathable air.
Keyboard shortcuts: press ? anywhere on this page to see them.