Template:Relative permittivity table
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| Material | εr |
|---|---|
| Vacuum | 1 (by definition) |
| Air | 1.00058986±0.00000050 (at STP, 900 kHz),[1] |
| PTFE/Teflon | 2.1 |
| Polyethylene/XLPE | 2.25 |
| Polyimide | 3.4 |
| Polypropylene | 2.2–2.36 |
| Polystyrene | 2.4–2.7 |
| Carbon disulfide | 2.6 |
| BoPET | 3.1[2] |
| Paper, printing | 1.4[3] (200 kHz) |
| Electroactive polymers | 2–12 |
| Mica | 3–6[2] |
| Silicon dioxide | 3.9[4] |
| Sapphire | 8.9–11.1 (anisotropic)[5] |
| Concrete | 4.5 |
| Pyrex (glass) | 4.7 (3.7–10) |
| Neoprene | 6.7[2] |
| Natural rubber | 7 |
| Diamond | 5.5–10 |
| Salt | 3–15 |
| Melamine resin | 7.2–8.4[6] |
| Graphite | 10–15 |
| Silicone rubber | 2.9–4[7] |
| Silicon | 11.68 |
| GaAs | 12.4[8] |
| Silicon nitride | 7–8 (polycrystalline, 1 MHz)[9][10] |
| Ammonia | 26, 22, 20, 17 (−80, −40, 0, +20 °C) |
| Methanol | 30 |
| Ethylene glycol | 37 |
| Furfural | 42.0 |
| Glycerol | 41.2, 47, 42.5 (0, 20, 25 °C) |
| Water | 87.9, 80.2, 55.5 (0, 20, 100 °C)[11] for visible light: 1.77 |
| Hydrofluoric acid | 175, 134, 111, 83.6 (−73, −42, −27, 0 °C), |
| Hydrazine | 52.0 (20 °C), |
| Formamide | 84.0 (20 °C) |
| Sulfuric acid | 84–100 (20–25 °C) |
| Hydrogen peroxide | 128 aqueous–60 (−30–25 °C) |
| Hydrocyanic acid | 158.0–2.3 (0–21 °C) |
| Titanium dioxide | 86–173 |
| Strontium titanate | 310 |
| Barium strontium titanate | 500 |
| Barium titanate[12] | 1200–10,000 (20–120 °C) |
| Lead zirconate titanate | 500–6000 |
| Conjugated polymers | 1.8–6 up to 100,000[13] |
| Calcium copper titanate | >250,000[14] |
References
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- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
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