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Vl = longitudinal sound velocity
D = density
Z = acoustic impedance
Data from Alan Selfridge
| Material | Vl[m/s] | D:Kg/dm3 | Z[MRayls |
| Acetate | 1270 | 0.871 | 1.02 |
| Acetone | 1170 | 0.791 | 1.07 |
| Alcohol ethanol | 1207 | 0.79 | 0.95 |
| Benzene | 1295 | 0.87 | 0.12 |
| Benzol | 1340 | 0.868 | 0.116 |
| Carbitol | 1460 | 0.988 | 1.431 |
| Chloroform | 987 | 1.49 | 1.47 |
| Ethanol amide | 1724 | 1.018 | 1.755 |
| Ethyl ether | 985 | 0.713 | 0.703 |
| Freon | 716 | 1.57 | 1.12 |
| Gallium at 30 degrees | 2870 | 6.09 | 17.5 |
| Gasoline | 1250 | 0.803 | 1.0 |
| Glycerin | 1904 | 1.26 | 2.34 |
| Glycol | 1480 | 1.019 | 1.511 |
| Honey | 2030 | 1.42 | 2.89 |
| Kerosene | 1324 | 0.81 | 1.072 |
| Mercury at 25 degrees | 1450 | 13.5 | 19.58 |
| Oil baby | 1430 | 0.821 | 1.17 |
| Oil corn | 1460 | 0.942 | 1.42 |
| Oil mineral | 1440 | 0.825 | 1.19 |
| Oil olive | 1445 | 0.918 | 1.32 |
| Oil SAE 20 | 1740 | 0.87 | 1.51 |
| Oil silicon | 960 | 0.818 | 0.74 |
| Oil transformer | 1390 | 0.92 | 1.28 |
| Trichlorethylene | 1050 | 1.05 | 1.1 |
| Water at 20C | 1480 | 1.0 | 1.483 |
| Water at 60C | 1550 | 1.0 | 1.55 |
| Water salt 10% | 1470 | ||
| Water salt 20% | 1600 | ||
| Water sea at 25C | 1531 | 1.025 | 1.569 |
| Material | Vl[m/s] | D:Kg/dm3 | Z[MRayls] |
| ABS | 2230 | 1.03 | 2.31 |
| Acrylic plexiglas | 2750 | 1.19 | 3.26 |
| Adiprene | 1689 | 1.16 | 1.94 |
| Bakelite | 1590 | 1.40 | 3.63 |
| Cellulose Butyrate | 2140 | 1.19 | 2.56 |
| Delrin | 2430 | 1.42 | 3.45 |
| Epotek 301 | 2640 | 1.08 | 2.85 |
| Ethyl vinyl acetate | 1800 | 0.94 | 1.69 |
| Neoprene | 1600 | 1.31 | 2.1 |
| Mylar | 2450 | 1.18 | 3.0 |
| Nylon 6/6 | 2600 | 1.12 | 2.9 |
| Polycarbonate | 2270 | 1.22 | 2.77 |
| Polyester casting resin | 2290 | 1.07 | 2.86 |
| Polyethylene | 1950 | 0.90 | 1.76 |
| Polyethylene high density | 2430 | 0.96 | 2.33 |
| Polyethylene low density | 1950 | 0.92 | 1.79 |
| Polypropylene | 2470 | 0.88 | 2.40 |
| Polystyrene | 2320 | 1.04 | 2.42 |
| Polyurethane | 1700 | 1.04 | 1.80 |
| PVC | 2380 | 1.38 | 3.27 |
| PVDF | 2300 | 1.79 | 4.2 |
| Scotch tape 2.5 mils thick | 1900 | 1.16 | 2.08 |
| Vinyl rigid | 2230 | 1.33 | 2.96 |
| Material | Vl[m/s] | D:Kg/dm3 | Z[MRayls] |
| Alumina | 10520 | 3.86 | 40.6 |
| Aluminum rolled | 6420 | 2.70 | 17.33 |
| Araldite 502/956 20 ph | 2540 | 1.39 | 3.52 |
| Araldite 502/956 50 phe | 2130 | 1.95 | 4.14 |
| Araldite 502/956 90 phe | 1520 | 8.40 | 12.81 |
| Beryllium | 12890 | 1.87 | 24.10 |
| Bismuth | 2200 | 9.8 | 21.5 |
| Brass 70cu 30 Zn | 4700 | 8.64 | 40.6 |
| Brick | 4300 | 1.70 | 7.4 |
| Cadmium | 2800 | 8.6 | 24 |
| Carbon vitreous, sigradur K | 4630 | 1.59 | 7.38 |
| Concrete | 3100 | 2.6 | 8.0 |
| Copper rolled | 5010 | 8.93 | 44.6 |
| Duraluminum 17S | 6320 | 2.79 | 17.63 |
| Fused silica | 5700 | 2.20 | 12.55 |
| Germanium | 5410 | 5.47 | 29.6 |
| Glass pyrex | 5640 | 2.24 | 13.1 |
| Glass quartz | 5500 | 2.20 | 12.1 |
| Glass silica | 5900 | 2.20 | 13.0 |
| Glucose | 3200 | 1.56 | 5.0 |
| Gold | 3240 | 19.7 | 63.8 |
| Granite | 6500 | 26.8 | |
| Induim | 2560 | 7.3 | 18.7 |
| Iron | 5900 | 7.69 | 46.4 |
| Iron cast | 4600 | 7.22 | 33.2 |
| Lead | 2200 | 11.2 | 24.6 |
| Lithium | 7080 | 4.7 | 33.0 |
| Magnesium | 5800 | 1.73 | 10.5 |
| Marble | 3800 | 2.8 | 10.5 |
| Molybdenum | 6300 | 10.0 | 63.1 |
| Nickel | 5600 | 8.84 | 49.5 |
| Paraffin | 1940 | 0.91 | 1.76 |
| Porcelain | 5900 | 2.3 | 13.5 |
| Quartz x cut | 5750 | 2.65 | 15.3 |
| Rubidium | 1260 | 1.53 | 1.93 |
| Salt crystalline x direction | 4780 | 2.17 | 10.37 |
| Sapphire, aluminum oxide | 11100 | 3.99 | 44.3 |
| Silicon very anisotropic approx | 8430 | 2.34 | 19.7 |
| Silicon carbide | 13006 | 13.8 | 91.8 |
| Silicon nitride | 11000 | 3.27 | 36 |
| Silver | 3600 | 10.6 | 38 |
| Steel mild | 5900 | 7.89 | 46 |
| Steel stainless | 5900 | 7.89 | 45.7 |
| Stycast | 2200 | 1.19 | 2.64 |
| Tantalum | 4100 | 16.6 | 54.8 |
| Teflon | 1390 | 2.14 | 2.97 |
| Tin | 3300 | 7.3 | 24.2 |
| Titanium | 6100 | 4.48 | 27.3 |
| Tracon | 2970 | 1.62 | 4.82 |
| Tungsten | 5200 | 19.4 | 101 |
| Uranium | 3400 | 18.5 | 63 |
| Vanadium | 6000 | 6.03 | 36.2 |
| Wood cork | 500 | 0.24 | 0.12 |
| Wood pine | 3500 | 0.45 | 1.57 |
| Zinc | 4200 | 7.0 | 29.6 |
| Zinc oxide | 6400 | 5.68 | 36.4 |
| Zirconium | 4650 | 6.48 | 30.1 |