Table 2: Chemical and material classes of the 125 nonexplosive chemicals and materials that are amongst the species that were tested. For the pure chemicals, species with multiple functional groups were tabulated in each class.

Class/type of compound Number of compounds in class Class/type of compound Number of compounds in class Organic classes Inorganic classes Alcohol 14 Borane 1 Aldehyde 3 Inorganic or rare earth salt 17 Alkane 6 Mineral, dirt 7 Alkene, alkyne 7 Mineral acid 3 Amides, carbamides 5 Organometallic 3 Amine 11 Peroxides, water 2 Amino acid 2 Aromatic 31 Other classes Carbohydrate 4 Building material 2 Carboxylic acid 13 Household product 4 Ester 11 Synthetic or natural fabric 2 Ether 11     Halogenated organic 6 Phenomenological Ketone 5 Fluorescent material (known) >10 Nitrile, nitro 3     Phosphines, phosphonates, and so forth. 4     Sulfides, thiols 2     Sulfates, sulfones, and so forth. 3